Services / Leak Detection
Leak detection in London & surrounding counties
We specialise in non-invasive leak detection. Rather than simply sending a plumber to start opening up walls, ceilings and floors, we use specialist leak detection equipment and cutting-edge techniques to identify the source of the leak without unnecessary damage to your property. Where invasive investigation is required, our skilled team will carry out targeted opening-up works, accessing only the areas needed to locate the leak and keeping disruption to a minimum.
- Unexplained damp patch or stain
- Boiler or heating losing pressure
- Water bill suddenly higher
- Ceiling stain below a bathroom
- Musty smell with no visible source
- Mould and fungus
Water flooding in right now? Get in touch and we can stop the leak, then repair the damage.
Leak detection services
We provide a complete leak detection, repair and reinstatement service across London and the surrounding areas. We find the source of the leak, carry out the repair and fully reinstate the affected areas, with minimal disruption throughout.
Trace and access
We provide professional trace and access, leak detection, repair and reinstatement services, from fast and accurate leak identification through to complete property restoration. We also support insurance claims with clear reports and documentation.
Inter-flat leaks
Leaks between neighbouring properties often lead to disruption and tension between residents. We quickly identify the source of the leak and provide easy-to-understand reports, ensuring everyone has a clear understanding of our findings and the cause of the leak.
Emergency plumbing
If a pipe has burst or you have a leak that needs to be stopped immediately, our team provides a fast emergency response to limit the damage, prevent further loss and protect your property and possessions.
How we find a hidden leak
We use a range of specialist techniques and equipment, including cutting-edge scanning technology, to quickly and accurately locate hidden leaks with minimal disruption to your property.
The equipment we use:
Our advanced 3D scanning technology helps us locate hidden leaks faster and more accurately.
Thermal imaging detects wet areas and leaks hidden behind walls, floors and ceilings.
Pin probe testing accurately measures the moisture level within a material.
Borescope cameras allow us to inspect inside walls, ceilings and other confined spaces without unnecessary opening-up.
Acoustic leak detection uses highly sensitive sensors to detect and analyse the sound frequencies generated by escaping water.
Tracer dye testing uses specialist fluorescent dyes to track water movement.
Tracer gas detection introduces a safe, non-toxic gas into the pipework. Specialist sensors then detect where the gas escapes to pinpoint the leak.
How a leak investigation works
01Instant estimate
Non-invasive leak investigations are charged at a fixed fee of £450 + VAT per leak, covering London and the surrounding areas. Locations further afield can be arranged at an additional cost. If we cannot locate the leak, you don’t pay.
02Investigation
Our specialist investigation process and advanced technology enable us to locate leaks quickly and accurately, often without causing damage to your property. We have a proven track record in leak detection, and we guarantee to find the source of the leak or you don’t pay.
03Report and quotation
You receive a clear, detailed report explaining the cause and extent of the problem, together with a fully itemised quotation for the required repairs. Our documentation can be submitted to your insurer, and we can support you throughout the insurance claim process.
04Repairs
The same experienced team that investigates your leak can also carry out the repairs. There are no subcontractors or unnecessary handovers, and we manage the entire process from the initial investigation through to completion.
Cost of leak detection
Our non-invasive leak investigation is £450 + VAT per leak, including a detailed written report and fully itemised repair quotation. If we cannot locate the source of your leak, you don’t pay.
Many buildings insurance policies include trace and access cover, which may pay for the investigation, subject to your policy terms and your insurer’s approval. We provide the reports and documentation you need to support your insurance claim.
Example leak investigation report
You get a clear written report showing where the leak is and what caused it, backed by photos, thermal images and a 3D scan, with an itemised quotation for the repairs. It’s ready to send straight to your insurer.
Why use Perlini for leak detection
Our leak detection guarantee
We have successfully located the source of every leak we have investigated to date. If we cannot locate the source of your leak, you don’t pay for the investigation.
Targeted opening-up
We use non-invasive detection methods to identify the most likely leak location before any opening-up is undertaken. Where access is required, we target the precise area indicated by our findings. This minimises unnecessary damage and reduces the reinstatement needed.
Written report
We provide a clear, professional report detailing our findings, detection methods and recommended works. You can submit it to your insurer as part of a trace and access claim.
Itemised quotation
The report includes a fully itemised quotation for the required repairs, so you and your insurer get clear, transparent pricing.
End-to-end repair service
Our experienced team can manage the entire process, from leak detection and repair through to drying, reinstatement and redecoration. We do not use subcontractors, so you get consistent standards and clear accountability from investigation to completion.
Accredited & trusted
CHAS accredited, Constructionline Gold member, expert installer of Safeguard products, Biokil approved contractor and multi-award-winning service provider.
What clients say
"Ross and the team were so helpful and professional. I cannot recommend them more and will be working with them again."
Ellie Hickling
"Perlini are by far the best contractors I have worked with. I am always confident they will find a solution to even the most difficult problems and their work is always to an exceptional standard."
Dom Chan
"We had a water leak in our kitchen that had caused a lot of damage to the walls. Ross was amazing from the start, and gave excellent advice about dealing with the insurers. The team did great work and I am so happy I chose this company. Absolutely 100% would recommend."
Charlotte Newland
"Ross and his guys could not have done a better job!!! He was so helpful from the start offering great advice and carrying out the most amazing transformation to my basement flat. I really could not recommend him and his team more. Will definitely be using them for any ongoing work I have in the future."
Rose Gordon
Frequently asked questions
Questions about leak detection.
Our other services
Damp proofing
Damp patches, peeling paint, black mould or persistent musty smells can be signs of damp. We survey the property, identify the right treatment, carry out the works and fully reinstate the affected areas, including redecoration.
Restoration & redecoration
Once the leak or damp is resolved, our experienced in-house team repairs, reinstates and redecorates the affected areas, restoring your property back to its original condition.