
Markyate Flat Roof Leak Detection
Experienced Commercial Flat Roof Inspectors
Don’t let a leaking flat roof ruin your property
Contact us today to schedule an inspection and make sure your roof is in good condition
- Non Destructive Solution
- Accurately pinpoint your leak
- 99% Success Rate
- Prevents further damage to your property
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Ensuring Your Commercial Roof’s Longevity and Integrity
We understand the critical importance of maintaining the integrity of your commercial roofing system. Whether you are fitting a new green roof or managing an existing flat roof, our comprehensive leak detection and membrane integrity testing services are designed to safeguard your investment and ensure compliance with industry standards.
Our Services
Green Roof Membrane Integrity Testing
Green roofs are not only environmentally friendly but also require specialised care to prevent leaks and ensure durability. Our Green Roof Membrane Integrity Testing service utilises cutting-edge technology to ensure that your roof is compliant with all relevant standards.
- 3rd Party Membrane Integrity Testing: The roof membrane visually inspected and electronically tested for waterproofing integrity, faults rectified and retested before further layers are placed.
- Compliance Assurance: Our testing aligns with British Standards 6229:2018 and NHBC Chapter 7.1, ensuring your roof meets all necessary regulations.
Commercial Flat Roof Leak Detection
Flat roofs are a common feature in commercial buildings but are often prone to leaks due to weather exposure and structural stresses. Our Commercial Flat Roof Leak Detection service offers:
- Accurate Detection: Utilising the latest in infrared thermography and electronic leak detection to pinpoint leaks accurately.
- Minimised Disruption: Non-invasive techniques ensure minimal disruption to your business operations.
- Peace of Mind: Regular inspections and prompt leak detection help maintain the integrity of your building and avoid costly repairs.
Why Choose Us?
- Independent Verification: As an independent third-party, our assessments provide unbiased and accurate evaluations, essential for new builds and existing structures. This independence is crucial for meeting the Premier Guarantee Structural Warranty.
- Expertise and Experience: Our team of specialists is highly trained and experienced in the latest leak detection technologies and methods.
- Regulatory Compliance: We help you adhere to British Standards 6229:2018 and NHBC Chapter 7.1, ensuring your roof meets all industry requirements.
Stay Compliant and Protect Your Investment
In today's commercial landscape, ensuring the structural integrity of your roof is more important than ever. Not only does it protect your property, but it also ensures you stay compliant with essential building standards and warranties.
Get in Touch
Protect your commercial property with our expert leak detection services and roof membrane integrity testing services. Contact us today to schedule an inspection or to learn more about how we can ensure your new green roof is compliant with all required construction standards and regulations.
Call us today or fill out our contact form to get started. Our team is ready to assist you in keeping your roof leak-free and compliant with all relevant standards. With Roof Leak Detection Specialists, you can be confident that your commercial roofing needs are in expert hands.
Flat Roof Leaks: The Importance Of Identifying Then Quickly
Your flat roof is an important aspect of your building, protecting the structure as well as the contents from the weather. Flat roofs can be more vulnerable to leaks that sloped roofs, and if they aren’t addressed quickly, a small leak can very quickly grow into a serious problem. With a leak, your flat roof may allow water to enter your home through multiple points, this can seriously damage your property and the contents. Our roof leak detection specialists can inspect your roof to identify the source of the leak quickly and prevent costly repairs and replacements.
Flat roofs can leak due to many factors including, poor installation, inadequate maintenance, or exposure to severe weather. Flat roof leaks can result from a number of factors including cracked flashing, blocked gutters and punctures caused by falling objects.
It is important to keep in mind that not all roof leaks will be obvious, some may require the expertise and tools of a roof leak expert to find. Regular professional roof inspections are a good way to ensure that your roof is in good shape and help to detect any potential issues before they have become a major issue.
Our team can provide commercial and residential roof cleaning, and maintenance services in Markyate and throughout the Hertfordshire area including Flamstead, Slip End, Caddington, Kensworth, Studham, Churchend, Holywell, New Town, Luton, Redbourn.
Are you the owner of a flat-roofed building that leaks?

Experts In Electronic Flat Roof Leak Detection
We are an independent UK flat roof leak detection company, who specialise in third-party electronic leak detection and integrity testing of all types of flat roofs and structural waterproofing membranes.
Our Markyate roof technicians can test any type of flat roof, both residential and commercial, throughout the Hertfordshire area. They can quickly locate the entry point by using non-destructive flat roof electronic leak detection techniques including low voltage earth leakage testing, differential pressure vacuum testing, high voltage dielectric electronic integrity testing, drone surveys & thermal imaging. Leakage surveys and tests can be performed in all weather conditions. After your flat roofing survey is complete, you’ll receive a complete Health and Safety Plan, Risk Assessments and Method Statements which together form an extensive O&M Manual.

New Flat, Green And Blue Roof Integrity Testing
Any flat, green or blue roofs should adhere to NHBC Chapter 7.1. Flat Roofs. Terraces. and Balconies in addition to British Standard 6229: 2018, (Flat Roofs with Continuously Supported Flexible Weatherproof Coverings, Code Of Practice).
Before any roofing membrane is overlaid, it must be visually examined and electronically tested to ensure waterproofing integrity. Any potential flaws in the membrane must be corrected and then the membrane should be retested before being overlaid, in accordance with NHBC Chapter 7.1.9 (Green Roofs & Propriety Roofs).
Premier Guarantee Structural Warranties go one step further. Section 7.11.15.2, “Roof Coverings –Green Roofing” section 7.11 requires that the waterproof membrane be tested for integrity prior to any additional components being applied. The testing should be performed by a third party unrelated to the roofing contract.
A roof survey will be done and all roof penetrations will be inspected. This will include an assessment and examination of any roof penetrations, terminations, mounts for equipment, roof membrane conditions, parapet wall coping and perimeter flashing.
{While vacuum testing membrane seams off-site can be a great way to assess quality, it is not recommended for proving flat roof integrity.|Vacuum testing of seams of membranes done off-site is an excellent way to determine quality but it is not recommended to be used to verify the integrity of flat roofs.|Although it can be useful to test the quality of seams off-site, it is not recommended as a method to prove flat roof integrity.|While it’s a good way of evaluating quality, vacuum testing membrane seams is not recommended to prove flat roofs’ integrity.
Every job is unique and we have the knowledge and experience to deal effectively with all types of roofs and customer needs. All our roof surveys follow the requirements of all major UK warranty providers as well as British Standards, The Property Care Association, and CIRIA.
For more information on our flat roof leak detection in Markyate get in touch today

For Property Protection, Rapid Leak Detection Is Crucial For Many Reasons.
- Preventing Structural Damage - If left unchecked, water leaks can harm your building’s structural integrity. This could lead you to expensive repairs or even a building collapse. Early detection of a leak can help you preserve your building’s structural integrity and prevent further damage.
- Mould And Mildew Growth Avoidance- Roof leaks can result in the growth of mould and mildew, which can have detrimental effects on the health of your building’s occupants. You can keep your building safe, healthy and free from mould and mildew by finding leaks in the roof early.
- Repair Costs Can Be Reduced - The longer that a roof leak remains unnoticed the greater the damage it will cause. This will result in more costly and complex repairs than if the leak was detected earlier. Rapidly identifying leaks can minimise damage and reduce repair costs.
- Saving On Energy Costs - Roof leaks can lead to higher energy costs, because the leaks location may result draughts making it more difficult to maintain a comfortable temperature. If roof leaks can be detected early it could reduce your energy costs.
- Reduce Your Insurance Costs - If your building has a history of water damage then you may get charged higher premiums by your insurance company. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Reduce insurance costs: If your building has a history of water damage then you may get charged higher premiums by your insurance company. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Flat Roof Leaks: Common Symptoms
- Water stains on the ceiling are one of the most evident indicators of a flat roof leak. These stains can be in the form of water droplets or discoloured patches and could indicate a roof leak. Because water stains can occur on ceilings due to other issues, such as plumbing leaks, a professional roof inspection may be necessary.
- Peeling paint or wallpaper is another sign that your flat-roof could be leaking. When water seeps down through the ceiling and into your attic, wallpaper or paint may peel off from walls. This could indicate a leak. High humidity and condensation could also be the cause of this, to ensure that there are no leaks, it is essential to have a professional roof inspector examine your roof for any leaks.
- Mouldy or musty odours could also indicate that you have a leaking roof. A leaky roof can promote the growth of mold or mildew and cause a musty odour. This could be a health hazard and should be corrected immediately.
- Another sign of a leaky roof is condensation on the roof’s inside. If the temperature inside the building is higher that the outside, condensation can form on the roof surface. This signals a leak. This can also be caused by poor insulation or inadequate ventilation.
Remember that these symptoms can also be caused by other problems, so a professional roof inspection should be carried out to find the exact source of the problem.
For more information on our flat roof leak detection in Markyate get in touch today
Flat Roof Leak Detection Frequently Asked Questions
Why put gravel on a flat roof?
Gravel and pea shingle have two primary purposes on a flat roof; they provide a 'loading coat' and they afford UV protection. As ballast, the gravel will help anchor the material underneath and lower the risk of it being blown off in high winds.
Does walking on a flat roof damage it?
Flat Roofs A flat roof is less precarious than a pitched one, but you still run the risk of damaging the felt and potentially going through the membrane. You're less likely to cause damage on a warm day, and it's generally advisable to lay boards across it to walk on.
What do roofers use on flat roofs?
The most common ones include EPDM rubber, single-ply (TPO, PVC), modified bitumen, built-up roofs (BUR), and spray polyurethane foam. Many homeowners choose either EPDM or TPO. EPDM roofs are affordable and can reach a lifespan of 30+ years.
What is the most common defect in flat roof?
Leaks. Leaks are an all-too-common occurrence in buildings with flat roofs. This is mostly because flat roofs tend to lose their ability to effectively shed water if not properly maintained. Once moisture is unable to drain from the roof, it's just a matter of time before it finds its way into the building.
Should a flat roof hold any water?
Whilst brief and occasional ponding is acceptable on a flat roof, regular or long-lasting ponding could be an indication that there is an issue with the roof that needs to be addressed.