Services / Leak Detection / Inter-Flat Leaks
Leaks between flats in London & surrounding counties
We trace the source of the water, identify which flat or area it is coming from and put our findings in writing, so everyone knows where the problem originates and where the repair is required.
- Water coming through a ceiling
- Staining below a bathroom
- A leak that only occurs when neighbours use water
- Disputes over where the leak is coming from
- Water damage in communal areas
Water flooding in right now? Get in touch and we can stop the leak, then repair the damage.
Leaks from the flat above
In a block or converted house, water can travel along pipes, joists and other building materials before it becomes visible, so the stain on your ceiling may not be directly below the source of the leak. This can make it difficult for residents, freeholders and managing agents to establish which flat is responsible.
We investigate across the affected flats and surrounding areas, using cutting-edge 3D scanning technology, thermal imaging, acoustic sensors and specialist leak detection equipment where appropriate to trace the source of the leak. In many cases, we can identify it without opening up walls or floors.
You may have a leak between flats if:
Water is coming through your ceiling or down a wall.
A stain is spreading below a bathroom or kitchen.
The leak only appears when the flat above uses water.
A communal hallway or stairwell has water damage.
A report everyone can work from
Our written report identifies which flat the water is coming from and whether the source of the leak is a leaking pipe, fitting or other defect. The report includes photographs, moisture readings and other relevant findings, together with an itemised quotation for the recommended repairs. This gives residents, managing agents, freeholders and insurers a clear document to work from.
We have found every leak we have investigated to date. If we cannot find the source of yours, you won’t be charged for the investigation.
For blocks and property portfolios, see our services for managed properties.
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 inter-flat 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.
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 leaks between flats.
Other leak detection services
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.
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.
Water-damage restoration
A leak or flood can cause serious damage to walls, ceilings and floors. We identify and fix the source of the water, dry the affected areas, carry out structural and cosmetic repairs, and redecorate your property.