Services
From testing to reporting, we’re a one-stop shop for all your leak detection needs. Learn more about the services we offer.
Why You Should Choose us
01. 24 hour reporting
We offer a rapid, accurate 24-hour turnaround on surveys and testing. This means you can take quick and decisive action to repair any issues we identify.
02. nationwide coverage
Our extensive team covers the whole of the UK – including Scotland, Wales, and Northern Ireland. No matter if you’re rural, urban, or suburban, we’ll be with you as soon as possible.
03. a wide range of services
In addition to leak detection testing and roof condition reporting, we provide moisture mapping, rainfall simulation, and drone surveys. If you’re not sure what service you need, we’re happy to make a recommendation.
High Voltage Dry Testing
If you need to find the source of a pinhole leak quickly, or a visual search has identified no visible holes, high voltage dry testing is the ideal solution.
A test electrode, in the form of a brush, rolling spring, or probe, is passed over the surface. If there’s a pinhole leak, the current arcs through the non-conductive surface through to the test electrode, producing a spark and an audible signal.
We have several years of experience carrying out high voltage dry testing, delivering thorough and accurate results.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Low Voltage Wet Testing
Ideal for thin surfaces or identifying multiple leak points, low voltage wet testing is a thorough, safe, and non-invasive way of discovering leaks and where water is flowing from..
A wire is laid around the test area and connected to a generator. Water is applied to the roof, either from rain or deliberate wetting, and the roof is scanned with a handheld detector. If there’s a leak point, the detector identifies it.
We can carry out electronic leak detection across a wide range flat roof membranes and have experience conducting tests for a variety of industries.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Moisture Mapping
Moisture mapping detects water trapped within the layers of a roof. This helps you identify which parts of your roof are affected by moisture and which parts are dry and in good condition.
Our skilled team uses highly specialist equipment including Tramex machines and moisture meters, to thoroughly check every millimetre of your roof and prevent further deterioration.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Identify hidden issues and maintain the integrity of your building with our thorough & reliable testing services
Rainfall Simulation Testing
If you’re experiencing rainwater leaks in your property, but aren’t sure where they’re coming from, rainfall simulation testing can solve the problem.
We replicate natural rainfall conditions in a controlled manner, meaning we can identify the exact source and path the water takes, and how it interacts with your property.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Drone Surveys
Want to check the condition of your roof quickly and safely? A drone can take high-quality photos of your roof so you can easily check for damage without needing to erect scaffolding.
Experienced and qualified in using drone technology, we will use our state-of-the-art drone to capture images of your roof, across all vantage points.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Roof Condition Surveys
A roof condition survey thoroughly checks the state of your roof, looking at the condition of the roof as well as the insulation, chimney, gutters, fascias, and soffits.
We offer a comprehensive surveying service, providing a detailed report with recommendations 24 hours after the survey is completed.
- residential
- commercial
- industrial
- healthcare
- hospitality
- retail
Shoukat AliTrustindex verifies that the original source of the review is Google. The service from Accurate Envelope Testing was impeccable from booking the appointment to the actual leak detection carried out by the MD Harry. The testing was efficient in identifying the source of the water leaks and a thorough report of the testing was provided. Sriram SubramanianTrustindex verifies that the original source of the review is Google. I recently had the pleasure of working with Harry from AET for a leak detection issue that had both us and our builders at a loss. Despite our own attempts with a hose-pipe on the roof yielding no results, Harry's approach was a breath of fresh air. His punctuality, organization, and methodical plan were immediately evident. Initially, after three hours without finding the source, I feared it might be a futile expense. However, Harry's patience and systematic method eventually uncovered several problems with the cavity tray, and more, which had eluded us all along. Thanks to Harry's detailed report, our builders were able to rectify the issues, and upon a subsequent integrity test, Harry's same commendable traits—timeliness, thoroughness, and patience—were once again on display. His work not only resolved our leak but also restored our peace of mind! I wholeheartedly recommend Harry and AET to anyone facing leak-related challenges in their property. Anita AppletonTrustindex verifies that the original source of the review is Google. I recently had a leak in my 100 year old cottage and contacted Accurate Envelope Testing for assistance. Their service was exceptional from start to finish. The Engineer arrived promptly and assessed the issue with professionalism and expertise. They efficiently found the leak and ensured there were no other leak points before leaving. I was impressed by their attention to detail and the quality of their workmanship. I highly recommend Accurate Envelope Testing and found them very friendly, helpful and very professional. Very satisfied customer. ColleenTrustindex verifies that the original source of the review is Google. I had a bathroom leak for ages that builders couldn’t fix despite multiple different firms looking and trying. AET diagnosed the leak within a few hours and provided the end of testing report which detailed the issues they found on the day. Because it this I have now had the leak fixed. Thank you AET!! B WTrustindex verifies that the original source of the review is Google. I would highly recommend AET to anyone struggling with a leak. The professional team were quick to attend our office and identify the rain water leak, which various other trades and builders have failed to find. They produced a thorough report highlighting the issues so we could finally get the leaks fixed properly. paul.rowleyTrustindex verifies that the original source of the review is Google. Very professional service by Harry. Successfully identified two sources of water ingress from balcony. Fast turnaround and a comprehensive survey report. LukeTrustindex verifies that the original source of the review is Google. top notch work, would use again and recommend Kieran FaruqueeTrustindex verifies that the original source of the review is Google. I am so happy that I found AET through a friend that had previously used them. I’ve been living with a leak for god knows how long and have had another company to find it but were unsuccessful. AET were fast and efficient from first picking up the phone, finding the leak and producing me with a report of the details where water was coming in from. andrew blakemoreTrustindex verifies that the original source of the review is Google. Accurate Envelope Testing (AET) swiftly identified and diagnosed the persistent rainwater leak in my kitchen, a problem that had stumped previous builders' attempts at fixing. Their meticulous testing pinpointed the root cause, and the detailed end-of-testing report provided a clear roadmap for effective repairs. Collaborating with my contractors using AET's insights, we finally addressed the issue, putting an end to the frustrating leaks. AET's expertise saved me from further wasted money and provided the key to living leak-free. Highly recommended for anyone dealing with stubborn water leaks. Tracey TyrrellTrustindex verifies that the original source of the review is Google. Required 2 half days visit but we've finally got to the bottom of our leak. We've had countless professionals and tradesmen out to try find the problem but to no avail. Everyone was completely puzzled but Accurate Envelope Testing have finally solved it for us! Very happy! Would definitely give them 10/10. Well done team!