
Flat Roof Leak Detection Long Marston
Professional Roof Inspectors For Commercial Flat Roof Properties
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 Leak-Free, Compliant Commercial Roofs
We specialise in safeguarding commercial properties through expert leak detection and roof membrane integrity testing services. Catering to UK facilities managers and commercial property owners, we help you maintain new and existing roofs to the highest standards.
Green Roof Membrane Integrity Testing
Green roofs require meticulous care when being installed to prevent leaks and ensure durability. Our Green Roof Membrane Integrity Testing service offers:
- Independent Membrane Integrity Testing: Your roof will undergo a comprehensive survey, including an inspection of all roof penetrations. This evaluation will cover roof terminations, rooftop equipment mounts, the condition of the roof membrane, perimeter flashing, parapet wall coping, and any other factors that could impact the membrane's watertightness.
- Standards Compliance: Ensuring the installation of your roof's adherence to British Standards 6229:2018, NHBC Chapter 7.1. and the Premier Guarantee Structural Warranties requirements
Commercial Flat Roof Leak Detection
Flat roofs are prone to leaks and require vigilant maintenance. Our Commercial Flat Roof Leak Detection service provides:
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- Accurate Leak Identification: Using infrared thermography and electronic detection methods to be able to accurately pinpoint the leak.
- Operational Continuity: Non-invasive techniques that minimise disruption to your business.
- Preventive Maintenance: Regular inspections to catch and fix leaks early, preventing extensive damage.
Why Choose Us?
- Independent Verification: As an impartial third-party, we offer unbiased assessments, crucial for meeting Premier Guarantee Structural Warranties requirements
- Team of Experts: Our specialists are trained in the latest leak detection and roof membrane integrity testing technologies.
- Regulatory Adherence: We ensure that your roofing meets British Standards 6229:2018 NHBC Chapter 7.1 and Premier Guarantee Structural Warranties requirements.
Our services provide the assurance you need to keep your property leak-free and within regulatory standards.
Don’t wait until a leak causes damage. Contact us today to schedule your inspection and ensure your roof's health and compliance.
The Importance Of Identifying Flat Roof Leaks Quickly
Your flat roof is an important aspect of your building, protecting the structure as well as the contents from the weather. However, flat roofs have a higher risk of leaking than sloped roofing, and if not dealt with promptly, even a minor leak can become a major problem very quickly. 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 are susceptible to leaks because of a number of factors, including inadequate installation, poor maintenance, and being exposed to severe weather. Flat roof leaks may be caused by cracked flashing, punctures from falling objects and blocked gutters.
It’s important to remember not all roof leaks can be easily detected without the help of experts with the right tools and experience. A good roofing plan can keep your roof in great condition for a long time, and routine professional roof inspections are a good way of identifying any minor leaks before they become a more serious problem.
Our team provides both commercial and residential roof cleaning services throughout Long Marston as well as the entire Hertfordshire region, including Puttenham, Tring, Wigginton, Wigginton Bottom, Aldbury.
Do you have a flat roof that is leaking?

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 highly trained roof technicians are able to test all types of flat roofing, both residential and commercial in Long Marston and throughout the Hertfordshire area. They will quickly and accurately locate the entry point using non-destructive flat roof electronic leak detection techniques such as low voltage earth leakage testing, high voltage dielectric electronic integrity testing, differential pressure vacuum testing, thermal imaging and drone surveying. Leakage surveys and tests can be performed in all weather conditions. After your flat roof survey is complete, you will be provided with a Health and Safety Plan, Risk Assessments and Method Statements. This together forms an extensive O&M Manual.

Integrity Testing For New Flat, Green And Blue Roofs
Any new flat, green or blue roofs must comply with NHBC chapter 7.1 of Flat Roofs. Terraces. And Balconies and British Standard 6229. 2018 (Flat Roofs with Continuously Supported Flexible Waterproof Coverings. Code of Practice).
Before roofing membranes are overlaid, they should be visually checked and electronically tested for waterproofing. Any defects should be repaired and the membrane should be retested before adding additional layers, as per NHBC Chapter 7.1.9 (Green Roofs & Propriety Roofs).
Premier Guarantee Structural Warranties go one step further. According to section 7.11.25.2 in the “Roof Coverings –Green Roofing”, section 7.11, waterproof membrane integrity must be verified before any other components can be applied. Testing should be performed by an independent party not connected to the roofing contract.
All roof penetrations will be inspected and the roof surveyed. 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.
We know every job is unique, and we have the experience and training to handle all types of roofs and customer needs. All roof surveys are conducted in accordance to the requirements of major UK warranty companies, British Standards, The Property Care Association and CIRIA.
If you are searching for Long Marston flat roof leak detection services then please get in touch today to book a free quotation.

You Need To Be Able To Quickly Detect Leaks In Order For Your Property To Be Protected For A Variety Of Reasons.
- Prevention Of Structural Damage - If not taken care of promptly water leaks can harm your building’s structural integrity. This could cause costly repairs, or worse, your building may collapse. Early leak detection can save your building’s structural integrity and help to avoid further damage.
- Avoiding Mold And Mildew Growth Roof leaks can result in the growth of mould and mildew, which can have detrimental effects on the health of your building’s occupants. Early detection of a roof leak can help to keep your building safe and healthy by stopping the spread of mildew and mould.
- You Can Reduce Repair Costs - The longer a leak is not fixed the more damage it creates. This will lead to more complicated and costly repairs than if the leak was found earlier. Rapidly identifying leaks can minimise damage and reduce repair costs.
- Saving On Energy Costs - A roof leak can cause draughts and make it harder to keep your building at a comfortable temperature, which can increase your energy costs. If roof leaks can be detected early it could reduce your energy costs.
- Reduce Your Insurance Costs - Insurance companies may increase your premiums if there is a history of water damage. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Reduce Your Insurance Costs Insurance companies may increase your premiums if there is a history of water damage. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Common Symptoms Of A Flat Roof Leak
- Water stains on the ceiling are one of the most evident indicators of a flat roof leak. These stains could be either discoloured patches or water droplets and can indicate that your roof is leaking. It is important to have a professional roof inspection done in order to determine the actual cause of water spots on your ceiling as water stains can be caused due to other reasons, such as plumbing leaks.
- If a flat roofing is leaking, it may be indicated by peeling wallpaper or paint. The wallpaper or paint may start peeling off the walls when water seeps into the attic and through the ceiling. This can also be caused by high humidity or condensation, so it is important to have a professional inspect the roof to ensure there are no leaks.
- A flat roof leak could be the cause of a musty or mouldy odour. If water is allowed to enter the structure, it can encourage the growth of mold and mildew, which can lead to a musty odour. This could present a significant health risk, and it must be fixed immediately.
- Another sign of a leaky roof is condensation on the roof’s inside. When the outside temperature is higher than inside, condensation can build up on the roof’s surface. This indicates a leak. This could also be due to inadequate insulation or poor ventilation.
Keep in mind, however, that these symptoms may also be caused by other issues, therefore, a professional roof inspection will be required to determine the actual source of the problem.
If you are searching for Long Marston flat roof leak detection services then please get in touch today to book a free quotation.
Roof Leak Detection FAQs
Does insurance cover flat roofs?
Insurers in most cases will define flat roofs as being pitched at 10 degrees or less. Having a small part of your roof being flat usually is not a problem, but if over 25% of your roof is flat, you may find that most insurers may not be able to offer you any cover at all.
How long does flat roof sealant last?
Summary: roof coating systems last 10-20 years, but once they reach the end of their warranty, they can be recoated and a new warranty begins. The process can be repeated, making roof coating systems a renewable and sustainable roofing system.
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.
Should I avoid buying a house with a flat roof?
Flat roofs are considered versatile and simple to maintain, but they can also be costly to repair. They are an energy-efficient alternative to sloped roofs but often come with issues such as a higher risk of leaking and water pooling. Flat roofs often have a shorter lifespan compared to sloped roofs
What is the major disadvantage of using a flat roof?
The biggest drawback of flat roofs is the drainage or lack thereof. Sure, flat roofs do have a slight slope that drains the water, but not nearly as efficiently as a pitched roof. The rainwater tends to remain on the roof and form a puddle, which can lead to possible leaks or material damage
Other areas near Long Marston we cover include: