Training Example: Perry Testing Ltd – Review the Data, Give Your Score & Compare to the Real AI Evaluation

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[H1] A national structural investigation and scanning company, built upon the best and brightest people in the industry.
From concrete and structural scanning to laboratory and in-situ materials testing, we’re a highly experienced team of engineers, trusted by some of the UK’s most recognised organisations.
[H2] The Structural Specialists
One of the nation’s most respected structural investigation, testing and scanning companies, we’ve built our reputation upon the quality, reliability and flexibility of our services.Based just outside London but travelling throughout the UK, we combine best practice and cutting-edge technology to deliver the information your projects demand direct to your desktop. Facts & Figures
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[H2] Popular Services
From concrete scanning and plate load testing to pile integrity testing, CBR Testing and beyond, over the years we’ve helped 100s of organisations, interrogating their structures to educate their decisions. Not sure which service you need? Some of our most popular offerings are below. Still not sure? Get in touch.
[H3] Concrete Scanning
One of the UK’s leading concrete scanning firms, we’re made up of time-served structural investigation engineers, each with over 10 years’ experience working on some of the nation’s most recognisable projects.
[H3] Plate Load Testing
One of our more popular construction materials testing services, we carry out incremental plate load testing on sites throughout the UK, providing our clients with project-critical information, often in real time.
[H3] Pull Out and Pull Off Testing
With over 25 years’ experience, our expert team specialise in carrying out tensile and shear tests on a variety of structural fixings attached to/inserted into walls, beams and more.
[H3] Concrete Testing
One of the UK’s most respected concrete testing firms, we work with hundreds of firms within the construction and civil engineering sectors, analysing their concrete structures, providing much-needed data to educate their projects. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process. "Perry Testing are more than just another surveying company, they provide modern solutions to real problems. Always a pleasure to work with them." —
Ben Joshua, Senior Engineer, Keltbray "We have engaged Perry Testing on a range and number of projects to provide scanning, sampling, and testing and always found them responsive and their reports to be high quality and informative. I would highly recommend them." —
Malcolm Brady, Director, MBP "I have worked with Perry Testing Limited on several projects over the past 3 or 4 years, and they have always responded to our requests at very short notice, providing a professional, expert service every time." —
Ben White, Managing Quantity Surveyor, United Living
[H3] Need our help?
We have experienced engineers on hand to talk through your needs and offer you expert advice. CONTACT AN EXPERT

[H2] Over 20 years of structural investigation and testing expertise
One of the fastest-growing and most respected firms of its type, the team at Perry Testing has been providing structural investigation and testing services for over 20 years. From pile integrity testing, pull off testing and load testing to slip resistance testing and diamond drilling, our seasoned experts provide the time-sensitive, project-critical data you demand.Using cutting-edge techniques and technology, we measure, investigate and analyse your structures, locating defects and providing detailed reports on areas of concern. Where possible, we also provide guidance and recommendations as to potential solutions.Operating throughout the UK, we work for a truly diverse range of clients. From large multi-nationals and developers to architects and structural engineers, our clients benefit greatly from the experience, speed and flexibility of our structural investigation team.So, whether you’re looking to alter an existing structure or assess the strength or performance of a particular component, our team of highly-qualified structural investigation engineers should be your first port of call. Need our help?
[H2] Get in touch.
The best way to contact us about Structural Investigation is directly through our website. Just leave us your details and a quick overview of what you need, and we’ll get back to you as soon as possible.
[IMG: structural investigation engineers]
[H2] Structural Investigation services
Navigate quickly to your chosen service: Concrete Assessment Surveys Pendulum Slip Resistance Testing Screed Soundness Testing Pile Integrity Testing Relative Humidity Testing Load Testing Pull Out and Pull Off Testing Schmidt Hammer Surveys Diamond Drilling and Dust Sampling RAAC Concrete Surveys FAQs Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert FAQs Can’t find the info you’re looking for? Check out our FAQs. Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert Which areas do you cover? We're based in Watford in Hertfordshire, not far from London, but we regularly travel throughout the UK including Bedfordshire, Middlesex, Buckinghamshire and Surrey to support our clients. How much do your services cost? Whilst every project is different, we charge based on a competitive day rate. Simply get in touch for a tailored quotation. How do I know which type (or types) of testing I need? Many of our clients are initially unsure as to exactly what type of testing is needed to capture the information their projects require. If that sounds like you, just get in touch and a member of our team will advise on the most appropriate and cost-effective approach to take. Do you offer an out-of-hours or weekend service? Absolutely. Whilst the majority of our works are carried out during normal working hours between Monday and Friday, we understand that this won't be possible for every client. That's why we offer an out of hours and weekend working service available upon request. What is your lead in time for attending site? On the whole, our lead time for site work is between 1-2 weeks from receipt of an instruction. That said, we completely understand that some projects require a more immediate response and will always do our best to accommodate urgent requests. Can you arrange access to areas at height? Yes. All of our engineers are trained to work at height with PASMA and IPAF certification. We can also bring any necessary access equipment with us - such as a tower or MEWP - as necessary. Can you carry out testing in confined spaces? Yes. We have a number of highly experienced engineers who have confined space training. What is your lead time for reports? Whilst this can vary due to nature of each individual project, we typically aim to deliver our reports within 10 working days of the site work having been completed. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process.
[H2] Concrete Assessment Surveys
Contact an expertThe suitability of reinforced concrete for construction or other purposes depends upon a combination of factors including – but not limited to – the quality of the mix, chloride ion content, cover depth and more.Over and above the tests discussed above, therefore, our specialists can carry out a wide selection of in-situ testing on concrete structures. Vital for accurately assessing both the durability and condition of structural concrete, these tests can be the difference between a project being viable and not.Carbonation testingCement content testingChloride testingAlkali-silica reaction testing (ASR)Sulphate testingTesting for the presence of HACConcrete resistivity testing
[H2] Pendulum Slip Resistance Testing
Contact an expertOften overlooked by developers and property owners alike, the friction of your floor (or how slippery it is) is absolutely critical, especially when it comes to public or commercial buildings.In the words of the Health and Safety Executive, “there is a level of friction below which people tend to slip over”. Fall below this level and you could be inadvertently encouraging people to fall, potentially leading to injuries, financial/insurance claims and even investigation by the relevant authorities.The Pendulum Slip Resistance Test is the HSE’s preferred method of assessing the slip resistance of flooring. This is thanks to its portability and thus its ability to be used in the exact conditions that could result in slip accidents.It measures the dynamic coefficient of friction (CoF) and, in simple terms, simulates the effect of a member of the public placing their heel on the ground whilst walking.
[H2] Screed Soundness Testing
Contact an expertFirst developed by the British Research Establishment – or BRE – in the 1970s, the BRE Screed Test is now widely accepted as being the default, ‘go to’ test for measuring the soundness of a sand and cement floor screed. To put things simply, however, it’s designed to calculate whether a screed is capable of taking the loads and level of traffic for which it was intended.Able to be used just 14 days after the screed has been laid, this test can help advise as to whether any remedial measures may be required due to issues with the mix or compaction etc.The BRE screed testing offered by Perry Testing is carried out in accordance with British Standard BS8204 with the BRE screed test itself now forming part of the BS Code of Practices for the measurement of screed soundness.In terms of methodology, either a 2Kg or 4Kg weight (attached to a 1m long guide) is dropped four times onto the screed with the indentation made in the concrete then being measured. We can interpret the results, considering the class of screed, whilst highlighting any suspect areas. Any problematic areas found following the BRE screed test may either be remediated or prompt further testing to be carried out.
[H2] Pile Integrity Testing
Contact an expertDiscover the benefits of pile integrity testing for assessing the condition of piles: a cost-effective and extremely efficient method that eliminates the need for expensive excavations, physical exposure or ground disturbance.
[H2] Relative Humidity Testing
Contact an expertWhilst your concrete slab may appear completely dry, that may not always be the case with significant amounts of water potentially still being present within the concrete (relative humidity). There are a variety of factors the can affect the level of relative humidity within concrete with RH sometimes remaining an issue for many months after pouring.What’s more, recently laid concrete slabs typically contain higher levels of relative humidity the further down you go. It’s essential, therefore, that testing is carried out throughout the slab, not merely towards the surface.Lay flooring on top of the slab before it’s had chance to properly dry out, however, and that water will try to escape, having potentially disastrous effects upon your chosen flooring.Our team of concrete specialists will assess your slab, measuring the level of relative humidity within and determining whether it has reached a safe and acceptable level. In doing so, we can save you significant amounts of both time and money that may otherwise have been spent on the installation of a damp proof membrane.
[H2] Load Testing
Contact an expertWith over 20 years’ experience, our team of structural investigation engineers are ideally placed to carry out in-depth load testing on a variety of structural elements.Structural load testing could be required for a number of reasons. A change of use could be proposed for the building, requiring the addition of supplementary floor or perhaps heavy plant. Alternatively, there could be a need to prove performance for verification reasons or even strength following a fire.Such testing is a widely accepted method of proving a building’s (or an individual component’s) ability to take a specific load. Such components could include…SlabsBalconiesBalustradesLiftsLifting beams and more.Perry Testing will apply the test load your projects demand using hydraulic rams or test weights, continuously monitoring deflection over a specified time period before issuing a report containing our findings.
[H2] Pull Out and Pull Off Testing
Contact an expertBacked up by more than two decades of experience, our specialist engineers carry out tensile and sheer tests – or pull out and pull off testing – on a range of structural fixings connected to or embedded within beams, walls and so on. Carried out in accordance with BS 8539, these tests can provide the information needed to identify potentially dangerous and expensive issues within fixings or structures.
[H2] Schmidt Hammer Surveys
Contact an expertThe Schmidt hammer – or rebound hammer – is a mechanical, spring-loaded tool that, when used on concrete, provides a value that can be compared against a table, this value corresponding to a known compressive strength figure.Widely believed to be one of the best methods of accurately assessing the compressive strength of concrete, a Schmidt hammer survey helps us identify known areas of high quality concrete. Comparing other areas against these, we can then pinpoint potentially problematic areas of concrete.By using a Schmidt hammer, our expert team can quickly and accurately identify areas of poor quality concrete, giving you the information you need to make a properly informed decision.
[H2] Diamond Drilling and Dust Sampling
Contact an expertDiamond drilling or coring is ideal for creating super clean, precision holes in concrete in order to extract cores for testing at one of our UKAS accredited laboratories.Not only is the structural integrity of the material preserved throughout due to its non-percussive nature, thanks to the water used during coring, the entire process is dust-free.Being quiet, light and easily transportable, the diamond drilling of concrete and other materials can take place almost anywhere, even in particularly tight spaces or those still occupied by the public.
[H2] RAAC Concrete Surveys
Contact an expertA light weight, aerated type of concrete that was used extensively in the second part of the 20th century, RAAC concrete is regularly present within public buildings and beyond, and in roofs and walls in particular.Over recent years, however, a number of structural failures have led to significant concerns arising over a tendency for cracking, rebar corrosion, and even collapse.Perry Testing provides an in-depth RAAC concrete surveys in line with both Government guidance and BRE IP 7/02. "Perry Testing are more than just another surveying company, they provide modern solutions to real problems. Always a pleasure to work with them." —
Ben Joshua, Senior Engineer, Keltbray "We have engaged Perry Testing on a range and number of projects to provide scanning, sampling, and testing and always found them responsive and their reports to be high quality and informative. I would highly recommend them." —
Malcolm Brady, Director, MBP "I have worked with Perry Testing Limited on several projects over the past 3 or 4 years, and they have always responded to our requests at very short notice, providing a professional, expert service every time." —
Ben White, Managing Quantity Surveyor, United Living
[H3] Looking for advice on structural investigation?
Want to learn more about structural investigation? Need a quotation? Get in touch! A member of our team will be only too happy to help! Contact an expert

[H2] Leading the way in concrete scanning technology
One of the UK’s leading concrete scanning firms, we’re made up of time-served structural investigation engineers, each with over 10 years’ experience working on some of the nation’s most recognisable projects.Firmly at the forefront of concrete scanning technology, we use cutting-edge ferroscan, GPR scanning and ultrasound equipment to interrogate your structures, providing an insight into sub-surface elements, dimensions and anomalies. In doing so, we help educate the construction process, reducing stress within your team, enhancing productivity and practically eliminating downtime in the process.As well as slabs, columns and beams, our concrete scanning specialists are able to use their non-intrusive technology to analyse larger concrete structures such as bridges, dock walls, tunnel soffits and more.We understand that concrete scanning is often an unforeseen requirement, frequently not factored in to either budget or programme. As such, both time and costs can be of the essence. We are committed to offering a quality service at a genuinely competitive price, fielding multiple teams throughout the UK and able to respond promptly to any concrete scanning requirement. If you’re worried about GPR scanning costs or any other scanning costs, please get in touch to discuss concerns with us. Need our help?
[H2] Get in touch.
The best way to contact us about Structural and Concrete Scanning is directly through our website. Just leave us your details and a quick overview of what you need, and we’ll get back to you as soon as possible.
[IMG: concrete scanning engineer]
[H2] Structural and Concrete Scanning services
Navigate quickly to your chosen service: Hilti Ferroscan Surveys GPR Concrete Scanning Ultrasonic Testing of Concrete Concrete Covermeter Surveys FAQs Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert FAQs Can’t find the info you’re looking for? Check out our FAQs. Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert Which areas do you cover? We're based in Watford in Hertfordshire, not far from London, but we regularly travel throughout the UK including Bedfordshire, Middlesex, Buckinghamshire and Surrey to support our clients. How much do your services cost? Whilst every project is different, we charge based on a competitive day rate. Simply get in touch for a tailored quotation. How do I know which type (or types) of testing I need? Many of our clients are initially unsure as to exactly what type of testing is needed to capture the information their projects require. If that sounds like you, just get in touch and a member of our team will advise on the most appropriate and cost-effective approach to take. Do you offer an out-of-hours or weekend service? Absolutely. Whilst the majority of our works are carried out during normal working hours between Monday and Friday, we understand that this won't be possible for every client. That's why we offer an out of hours and weekend working service available upon request. What is your lead in time for attending site? On the whole, our lead time for site work is between 1-2 weeks from receipt of an instruction. That said, we completely understand that some projects require a more immediate response and will always do our best to accommodate urgent requests. Can you arrange access to areas at height? Yes. All of our engineers are trained to work at height with PASMA and IPAF certification. We can also bring any necessary access equipment with us - such as a tower or MEWP - as necessary. Can you carry out testing in confined spaces? Yes. We have a number of highly experienced engineers who have confined space training. What is your lead time for reports? Whilst this can vary due to nature of each individual project, we typically aim to deliver our reports within 10 working days of the site work having been completed. Can a Ferroscan only detect metallic objects? Yes, however, we can also use specialist GPR (ground penetrating radar) equipment that can also pick up all manner of materials and voids. How deep can a Ferroscan detect reinforcement? The Hilti Ferroscan PS300 can detect reinforcement up to 150mm below the surface. We can also use GPR (ground penetrating radar) equipment to detect reinforcement up to a depth of 600mm. How much can you scan in one day using Ferroscan equipment? It depends on the site conditions but, on the whole, we can usually scan approximately 20² metres per day. Please give us a call to discuss your requirements in more detail. Can the Ferroscan determine bar (rebar) diameters? The Hilti PS300 is accurate to +/- 1 standard bar size. That said, we would recommend confirming this by performing a small, localised breakout. How deep can GPR - or ground penetrating radar - penetrate? Our standard, high-frequency GPR antennas can detect reinforcement up to a depth of 600mm. We also have lower frequency antennas that can penetrate up to 3m, dependent on ground conditions. Can GPR equipment determine the diameter of reinforcing bar (or rebar)? No, GPR is unable to determine bar diameter. However, we can use the Hilti Ferroscan and localised breakouts (where required) to capture these dimensions. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process.
[H2] Hilti Ferroscan Surveys
Contact an expertBy far the most popular form of concrete scanning, as the name would suggest, a ferroscan survey is used to detect and position rebar within reinforced concrete in much the same way as a covermeter survey. Unlike that more basic approach, however, the ferroscan can also determine both bar diameter and spacing, letting an experienced user build up a far more detailed picture of sub-surface conditions.Determined to stay at the forefront of concrete scanning technology, all of our teams use the very latest ferroscan instruments, the all-new Hilti Ferroscan PS300. Site conditions allowing, this revolutionary new instrument is able to provide the following details down to approximately 200mm below the surface…Cover depthBar diameterBar spacingMesh layoutThat’s up to 100mm deeper than its predecessor, the otherwise Hilti Ferroscan PS250. A ferroscan survey can also detect other metallic objects (e.g. steel cables) but, as the name would suggest, is unable to detect non-metallic items.Two types of survey can be carried out using the Hilti Ferroscan…Quick Scans – The lateral position of any rebar can be marked directly onto the slab, column or beam itself using chalk, paint stick or similar. This seemingly rudimentary approach is perfect for those intending to drill or core through concrete. Not only is it quick, providing instant results, it also lets the client drill cleanly, missing any reinforcement on the way through.Image Scans – For those requiring more in-depth information, image scans are the preferred route. Granted, this type of ferroscan survey takes longer to perform and the results cannot be analysed in situ. That said, once the surveyor has returned to base, the data can be downloaded to their computer for analysis within Hilti’s Profis software. At this point, cover depth, bar diameter and bar spacing measurements can be extracted. ‘Slices’ through scans as well as the overall mesh layout can also be output. These images can be added to reports or CAD drawings according to your specifications.
[H2] GPR Concrete Scanning
Contact an expertA somewhat different approach to the more traditional ferroscan, our Hilti PS1000 and Proceq GPR Live ground penetrating radar systems are developed specifically for the interrogation of structures. With a substantially greater operating depth, these tools are able to provide an incredibly detailed picture of sub-surface conditions.By no means an exhaustive list, GPR concrete scanning can help identify the following…VoidsCracksReinforcing bars (position, spacing and layout across one or a number of layers)Non-ferrous services (pipes, conduits, ductwork etc.)Changes in surfaceWhilst it does have its limitations, concrete specific ground penetrating radar has helped revolutionise the field of concrete scanning, having a number of advantages over more traditional types of surveying.GPR concrete surveys provideThe ability to calculate the thickness of a slabThe ability to view two layers of reinforcement without the need to access both sides of the slabSignificantly improved operating depthThe identification of voids, buried services and other buried elements, including non-metallicThe ability to mark out reinforcement without the need to first remove any levelling compounds or screedsThe ability to produce three dimensional and cross-sectional images of conditions inside the slab
[H2] Ultrasonic Testing of Concrete
Contact an expertA real step forward in the field of concrete scanning, ultrasonic testing has changed the way both we and the wider industry attempt to locate defects within concrete structures.At Perry Testing, we’ve embraced the very latest in ultrasonic testing technology – the Proceq Pundit PE200 – in order to identify a whole range of structural defects in concrete. These include, but are not limited to…Cracks (including crack depth)VoidsPipesHoneycombingQuite commonly, the ultrasonic testing of concrete may only be required from one side of the object, making access issues a thing of the past. What’s more, thanks to the nature of the device, we’re often able to provide critical data there and then, reducing down time and maintaining productivity on site. Naturally, however, these insights can be followed up by detailed drawings and reports highlighting any areas of concern.Interestingly, the same technology can also be used to provide valuable information on the strength and uniformity of a whole variety of materials including…ConcreteWoodCeramicsRock and more.
[H2] Concrete Covermeter Surveys
Contact an expertA simple and cost-effective form of concrete scanning, a cover meter survey is intended to locate reinforcing bars (or ‘rebar’) within concrete as well as providing an accurate determination of cover depth – the distance from the surface of the slab to the top of the rebar.Designed for exactly this purpose, a cover meter is a handheld instrument that uses pulse-induction technology to induce electromagnetic pulses into a concrete slab. The closer a reinforcing bar is to the surface, the stronger the magnetic field it will generate, thus making it possible for a covermeter survey to determine cover depth.Until the advent of the Hilti Ferroscan, the cover meter was the only reliable method of determining cover depth. That said, if you don’t need to know bar diameter and spacing (features of the more advanced Ferroscan tool), a cover meter survey could still be the service your project requires. Indeed, lower equipment costs and reduced reporting time means that cover meter surveys can prove particularly cost effective. "Perry Testing are more than just another surveying company, they provide modern solutions to real problems. Always a pleasure to work with them." —
Ben Joshua, Senior Engineer, Keltbray "We have engaged Perry Testing on a range and number of projects to provide scanning, sampling, and testing and always found them responsive and their reports to be high quality and informative. I would highly recommend them." —
Malcolm Brady, Director, MBP "I have worked with Perry Testing Limited on several projects over the past 3 or 4 years, and they have always responded to our requests at very short notice, providing a professional, expert service every time." —
Ben White, Managing Quantity Surveyor, United Living
[H3] Looking for advice on concrete scanning?
Want to learn more about concrete scanning? Need a quotation? Get in touch! A member of our team will be only too happy to help! CONTACT AN EXPERT

[H2] 20+ years of experience in construction materials testing
Strong and reliable constructions depend upon the suitability of the ground being built upon. Getting that ground geotechnically tested to make sure it’s fit for purpose, therefore, is just good common sense. Working for one of the most reputable engineering organisations of its type, our construction materials testing specialists use cutting-edge techniques and equipment to assess your sites in situ, allowing your team to build with confidence.With over 20 years’ experience providing in situ construction materials testing services, we’ve worked on some of the UK’s highest profile engineering projects. Many of our tests can be performed without the need for downtime, keeping projects on track and on budget. What’s more, reports for many of our tests can be issued immediately, considerably reducing waiting times for project critical data. Need our help?
[H2] Get in touch.
The best way to contact us about In-Situ Construction Materials Testing is directly through our website. Just leave us your details and a quick overview of what you need, and we’ll get back to you as soon as possible.
[IMG: Engineer undertaking Construction Materials Testing]
[H2] In-Situ Construction Materials Testing services
Navigate quickly to your chosen service: DCP Testing - Dynamic Cone Penetrometer Hand Shear Vane Testing Incremental Plate Load Testing CBR Testing - California Bearing Ratio SRD Testing - Sand Replacement Density Core Cutter Density Testing Laboratory Based Construction Materials Testing FAQs Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert FAQs Can’t find the info you’re looking for? Check out our FAQs. Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert Which areas do you cover? We're based in Watford in Hertfordshire, not far from London, but we regularly travel throughout the UK to support our clients. How much do your services cost? Whilst every project is different, we charge based on a competitive day rate. Simply get in touch for a tailored quotation. How do I know which type (or types) of testing I need? Many of our clients are initially unsure as to exactly what type of testing is needed to capture the information their projects require. If that sounds like you, just get in touch and a member of our team will advise on the most appropriate and cost-effective approach to take. Do you offer an out-of-hours or weekend service? Absolutely. Whilst the majority of our works are carried out during normal working hours between Monday and Friday, we understand that this won't be possible for every client. That's why we offer an out of hours and weekend working service available upon request. What is your lead in time for attending site? On the whole, our lead time for site work is between 1-2 weeks from receipt of an instruction. That said, we completely understand that some projects require a more immediate response and will always do our best to accommodate urgent requests. Can you arrange access to areas at height? Yes. All of our engineers are trained to work at height with PASMA and IPAF certification. We can also bring any necessary access equipment with us - such as a tower or MEWP - as necessary. Can you carry out testing in confined spaces? Yes. We have a number of highly experienced engineers who have confined space training. What is your lead time for reports? Whilst this can vary due to nature of each individual project, we typically aim to deliver our reports within 10 working days of the site work having been completed. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process.
[H2] DCP Testing - Dynamic Cone Penetrometer
Contact an expertAt Perry Testing, we use a Dynamic Core Penetrometer (or DCP) to obtain an indicative CBR value without the need for expensive downtime such as plant and operator costs.Generally applied to the ground via specially created trial pits or core holes, DCP testing is carried out by dropping a weight from a known distance onto the cone. The resultant movement measured can then be read directly from the instrument.DCP testing is typically used to measure road and pavement condition and stiffness. That said, we can also use the dynamic cone penetrometer to measure the strength of in-situ soils as well as to determine both the thickness and location of underlying soil layers.
[H2] Hand Shear Vane Testing
Contact an expertHand shear vane testing involves the application of an instrument in order to determine the undrained shear strength of cohesive soils.The result can be given in Kn/M² or it can be given as a vane shear strength using the calculation given in British Standard BS 1377. Either of these results can be provided instantly on site by our knowledgeable engineers.
[H2] Incremental Plate Load Testing
Contact an expertCarried out in accordance with British Standard BS 1377, incremental plate load testing is an extremely popular method of…Proving pile matsProving crane mats prior to the arrival of plant on siteProving concrete slabs prior to the arrival or design of heavy plantOur specialist engineers will apply a counterweight (known as ‘kentledge’) to the surface with the weight being applied varying according to the loads that need to be simulated. The appropriate load will then be applied to the plate with any distortions being meticulously documented.
[H2] CBR Testing - California Bearing Ratio
Contact an expertCBR testing (or California Bearing Ratio testing) can be used to evaluate the load-bearing potential of roads, pavements, and driveways, amongst other surfaces. It can prove particularly useful during situations involving a potential change in the use of a surface, such as the need to accommodate higher traffic volumes or heavier loads, or when gauging the quantities of materials needed for prospective road construction projects.
[H2] SRD Testing - Sand Replacement Density
Contact an expertExperts in our field, Perry Testing offers a comprehensive sand replacement density testing service, designed to measure the in-situ density of natural soils or imported materials using sand pouring cylinders.The in-situ density is normally used for highway or pavement design purposes, providing designers and engineers with the relevant ‘degree of compaction’ (required for highway and site specifications). This allows our clients to be confident in the compaction of the material before proceeding with final layers.Sand replacement density testing is fully described in British Standard BS 1377: Soils for Civil Engineering Purposes: Part 9 and is both an efficient and accurate way of accessing the density of most materials.It is worth noting that, unlike other methods, with SRD testing there is no need for time consuming and expensive calibration of equipment for every site and material type.
[H2] Core Cutter Density Testing
Contact an expertCore cutter density testing is used for almost the same purpose as SRD testing (covered above). This time, however, it is used solely for cohesive materials (e.g. clay). As with the former method, this is an extremely effective way of both quickly and accurately checking compaction on site.Once collected, the samples can then be used for further tests such as triaxial or permeability assessments.
[H2] Laboratory Based Construction Materials Testing
Contact an expertNot all testing is carried out there and then on site. Many of the tests we most commonly carry out involve a physical sample being taken on site, with that sample then being transported to one of our UKAS-accredited partner laboratories for in-depth analysis.For more information on these services, visit our laboratory testing services page. Alternatively, why not get in touch? "Perry Testing are more than just another surveying company, they provide modern solutions to real problems. Always a pleasure to work with them." —
Ben Joshua, Senior Engineer, Keltbray "We have engaged Perry Testing on a range and number of projects to provide scanning, sampling, and testing and always found them responsive and their reports to be high quality and informative. I would highly recommend them." —
Malcolm Brady, Director, MBP "I have worked with Perry Testing Limited on several projects over the past 3 or 4 years, and they have always responded to our requests at very short notice, providing a professional, expert service every time." —
Ben White, Managing Quantity Surveyor, United Living
[IMG: RAAC concrete testing]
[H3] Looking for advice on materials testing?
Want to learn more about materials testing? Need a quotation? Get in touch! A member of our team will be only too happy to help! Contact an expert

[H2] Laboratory testing of concrete and soils carried out in UKAS accredited laboratories
As a highly respected structural investigation firm, every year we take over 1,000 samples from construction and civil sites throughout the UK. It’s no wonder, therefore, that we also provide a comprehensive laboratory testing service. Analysing both concrete and soils, we work hand in hand with our network of UKAS-accredited partner laboratories to analyse our clients’ sites, providing data essential for their engineering projects.  As experienced engineers ourselves, we’re only too aware of the importance of getting the information your projects demand in a timely and user-friendly fashion. By default, therefore, we back our intrusive and laboratory testing services up with concise, genuinely informative reports, enabling our clients to interpret their test results quickly and easily. Need our help?
[H2] Get in touch.
The best way to contact us about Laboratory Testing is directly through our website. Just leave us your details and a quick overview of what you need, and we’ll get back to you as soon as possible.
[IMG: laboratory testing of concrete]
[H2] Laboratory Testing services
Navigate quickly to your chosen service: Concrete Testing Soils Testing FAQs Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert FAQs Can’t find the info you’re looking for? Check out our FAQs. Don't see an answer to your question? No problem, please contact us and we will be happy to assist. Contact an expert How long does a concrete core need to be? Concrete core samples need to have a 1:1 diameter to length ratio. How long does it take to get results for compressive strength of core tests? We aim to provide these results within 5 working days. What diameter does a concrete core need to be? The diameter of a concrete core needs to be at least 1.5 times the nominal aggregate size. Will you reinstate the core holes after coring has been completed? Yes, we can perform a a structural repair where the core was extracted. Is concrete coring noisy? Yes, extracting a core sample will create noise. That said, we will always do our best to be flexible, avoiding certain times of day upon request. Alternatively, we can provide a quote for out of hours working where necessary. Which areas do you cover? We're based in Watford in Hertfordshire, not far from London, but we regularly travel throughout the UK including Bedfordshire, Middlesex, Buckinghamshire and Surrey to support our clients. How much do your services cost? Whilst every project is different, we charge based on a competitive day rate. Simply get in touch for a tailored quotation. How do I know which type (or types) of testing I need? Many of our clients are initially unsure as to exactly what type of testing is needed to capture the information their projects require. If that sounds like you, just get in touch and a member of our team will advise on the most appropriate and cost-effective approach to take. Do you offer an out-of-hours or weekend service? Absolutely. Whilst the majority of our works are carried out during normal working hours between Monday and Friday, we understand that this won't be possible for every client. That's why we offer an out of hours and weekend working service available upon request. What is your lead in time for attending site? On the whole, our lead time for site work is between 1-2 weeks from receipt of an instruction. That said, we completely understand that some projects require a more immediate response and will always do our best to accommodate urgent requests. Can you arrange access to areas at height? Yes. All of our engineers are trained to work at height with PASMA and IPAF certification. We can also bring any necessary access equipment with us - such as a tower or MEWP - as necessary. Can you carry out testing in confined spaces? Yes. We have a number of highly experienced engineers who have confined space training. What is your lead time for reports? Whilst this can vary due to nature of each individual project, we typically aim to deliver our reports within 10 working days of the site work having been completed. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process.
[H2] Concrete Testing
Contact an expertOne of the UK’s most respected concrete testing firms, we work with hundreds of firms within the construction and civil engineering sectors, analysing their concrete structures, providing much-needed data to educate their projects.Below you’ll find a list of our most popular laboratory-based concrete testing services. If you can’t find the test you’re looking for or are unsure of the service you require, however, why not get in touch?Compressive Strength of Blocks BS 6073-1/2:1981 Appendix BCompressive Strength of Mortar Cubes BS 4551-1 Method 12.4Compressive Strength of Blocks BS 6717-1:1993Compressive Strength of Clay Bricks BS 3921Block Density and Concrete Density BS 6073-2:1981 App CCapillary Absorption Test BS 1217 Annex ACompressive Strength of Concrete Cube BS EN 12390-3Combined Compressive Strength of Concrete Cube BS EN 12390-3 & Density BS EN 12390-7 (by displacement)Concrete Core Compressive Strength BS EN 12504-1Density of Hardened Concrete (by dimensions) BS EN 12390-7:2009Penetration of Water Under Pressure on Concrete EN 12390-8Flexural Test on Concrete Beams EN 12390-5:2009Compressive Strength of Concrete Cylinders ASTM C1231Fresh Concrete Density BS EN 12350-6Aggregate Cement Ratio (cement content)Presence of HACChloride ContentSulfate ContentSulfide ContentAlkalisCapillary PorosityOriginal Water Cement RatioAlkali-Silica Reaction (ASR)Petrographic Analysis
[H2] Soils Testing
Contact an expertA leading soil testing company working throughout the UK, we add genuine value to our clients’ projects, providing them with the critical test data their projects so desperately need.Below you’ll find a list of our most popular laboratory-based soil testing services. If you can’t find the test you’re looking for or are unsure of the service you require, why not get in touch?Ten Percent Fines Value BS 812-111:1990Aggregate Impact Value BS 812-112:1990Horizontal Permeability of Drainage Layers to DTpHA41:1990Polished Stone Value BS EN 1097-8Bulk and Oven Dry Density Miscellaneous MaterialsLos Angeles Coefficient BS EN 1097-2Los Angeles Coefficient BS EN 1097-2 Annex A for Rail BallastParticle Size Distribution BS EN 933-1Flakiness Index Test BS EN 933-3Bulk Density Test BS EN 1097-3Water Content EN 1097-5Drying Shrinkage of Aggregate BS EN 1367-4Magnesium Sulphate Test BS EN 1367-2Crushed and Broken Surfaces BS EN 933-5Aggregate Abrasion Value BS EN 1097-2Constituent Materials in Recycled Aggregate & Recycled Concrete Aggregate SHW Cl 710California Bearing Ratio / Immediate Bearing Index Test Data EN 13286-47California Bearing Ratio / Immediate Bearing Index Linear Swelling Data EN 13286-47MCV EN 13286-46Determination of Liquid and Plastic Limit BS 1377-2 : 1990Lab Compaction Test BS 1377-4:1990 Method 3.3/3.4/3.5/3.6Consolidation Test BS 1377-5:1990CBR BS 1377-4:1990 Method 7CBR Test Soaking Data BS 1377-4:1990Method 7 / BS 1924-2:1990 Method 4.5Vibrating Hammer Compaction Test BS 1377-4:1990 Method 3.7Saturation Moisture Content of Chalk BS 1377-2:1990Permeability (Constant Head) BS 1377-5:1990 Test 5MCV BS 1377-4:1990 Method 5.4 / 5.5MCV-MC Relationship Method 5.5PSD (Hydrometer Sedimentation) BS 1377-2:1990 Test 9.5Particle Density BS 1377-2:1990 Method 8.2/8.3/8.4Moisture Content BS 1377-2 Method 3.2 / BS 812-109 Method 638mm Quick Undrained Triaxial Compression Test BS 1377-7:1990 Test 8105mm Quick Undrained Triaxial Compression Test BS 1377-7:1990 Test 8/9Triaxial Permeability Test BS 1377-6:1990 / In-house P1-398Particle Size Distribution BS 1377-2:1990 Method 9.2/9.3PSD (Pipette Analysis) BS 1377-2: 1990 Test 9.4Casagrande Liquid Limit BS 1377-2: 1990 "Perry Testing are more than just another surveying company, they provide modern solutions to real problems. Always a pleasure to work with them." —
Ben Joshua, Senior Engineer, Keltbray "We have engaged Perry Testing on a range and number of projects to provide scanning, sampling, and testing and always found them responsive and their reports to be high quality and informative. I would highly recommend them." —
Malcolm Brady, Director, MBP "I have worked with Perry Testing Limited on several projects over the past 3 or 4 years, and they have always responded to our requests at very short notice, providing a professional, expert service every time." —
Ben White, Managing Quantity Surveyor, United Living
[IMG: pile integrity testing]
[H3] Looking for advice on laboratory testing?
Want to learn more about laboratory testing? Need a quotation? Get in touch! A member of our team will be only too happy to help! Contact an expert

[H1] Contact us
Do you need expert assistance with a project? To request a quotation or simply to discuss a job, please get in touch. Our friendly, professional team will be only too happy to help. info@perry-ltd.com 01923 551 889 Follow us on LinkedIn Need our help?
[H2] Get in touch.
The best way to contact us about any of our services is directly through our website. Just leave us your details and a quick overview of what you need, and we’ll get back to you as soon as possible. Why choose Perry Testing? Time served professionalsEvery one of our engineers and technicians has between 5 and 25 years of specialist structural investigation, scanning, or construction experience under their belt. Easy-to-read, concise reportsOur beautifully formatted reports are delivered promptly whilst getting straight to the point, providing the data you need direct to your inbox. Professional, friendly staffWe take pride in the professionalism and attitude of our staff. From first contact to reporting, we'll treat you as we'd like to be treated ourselves. Proven track recordEvery year, we complete hundreds of projects for a truly loyal client base, firms that return time after time, confident in the service they'll receive. Nationwide serviceOur teams travel the length and breadth of the UK, delivering structural investigation and testing services on a truly diverse range of sites. Reduced risk and costsUsing the very latest technology and techniques, we help reduce unexpected costs, keeping your team, project and organisation safe in the process.