Leak Detection in Kensington and Chelsea
Kensington and Chelsea are stucco terraces divided into flats, mansion blocks, mews houses and garden squares, many with lower ground floors fitted with underfloor heating. Finding a leak here without damaging the finishes is the whole point.

Leaks in Kensington and Chelsea homes
Kensington and Chelsea are mostly early and mid Victorian stucco terraces, most of them converted into lateral or stacked flats with several bathrooms over the rooms below. Mews houses behind the squares have been rebuilt inside with plastic pipework and underfloor heating. Mansion blocks have shared risers and communal heating. Lower ground floors across W8, SW3 and SW10 have been dug out, tanked and fitted with underfloor heating in new screed, and World's End and Chelsea Harbour add post-war estates and modern riverside flats. Period finishes, stone floors and bespoke joinery make opening up expensive, so a precise location matters more here than almost anywhere.
We cover W8, SW3 and SW10. Typical calls are a ceiling stain in the flat below a bathroom, a warm patch on a stone floor, a boiler or communal system losing pressure and a damp lower ground floor wall. Thermal imaging maps heating and underfloor pipework through stone, screed and plaster without touching the finish. Tracer gas finds the point of escape in any circuit that fails the pressure test. Dye tests settle which bath, shower or waste is at fault. The borescope inspects voids behind panelling and under floors through an existing opening wherever possible.
Residents parking covers the whole borough and many streets have no stopping at all. We bring the kit in on a trolley from the nearest bay and arrange access with porters, housekeepers and managing agents in advance. We protect floors and work quietly. A survey of a large lateral flat can take longer than the usual two to four hours, and we say so when booking. The written report with photographs, thermal images and readings is prepared for a trace and access claim on your buildings insurance and for the managing agent.
What we detect in Kensington and Chelsea

Water leak detection
Hidden leaks behind walls, under floors and in ceilings, pinpointed with thermal, acoustic and tracer gas kit before anything is opened up.
Water leaks
Underfloor heating leak detection
A leaking underfloor heating loop is found by isolating circuits at the manifold, then mapping the pipes with thermal imaging and tracer gas.
Underfloor heating
Thermal imaging leak surveys
A thermal imaging camera shows warm pipe runs and cool wet patches through floors and walls, so the leak is seen before anything is opened.
Thermal imaging
Tracer gas leak detection
A safe hydrogen and nitrogen mix is put into the drained pipe, rises through the floor or wall and is picked up by the detector directly above the leak.
Tracer gas
Trace and access insurance reports
Leak detection carried out and documented the way insurers expect, with a report your claims handler can act on straight away.
Insurance reportsFrom your first call to a leak you can see in the report
Call or WhatsApp with a few photos and a line about the symptoms. We ask a handful of questions, agree a fixed price and book the survey, usually for the same or the next day.
On arrival we pressure test the mains, hot water and heating, check the meter and test the escaping water, so we know what we are looking for before the detection starts.
Thermal imaging, the acoustic ground microphone and tracer gas are used as the pipework dictates until the leak is marked on the floor or wall.
You get a written report with readings, thermal images and photographs, ready for a trace and access claim. If you want the leak fixed, we open that one spot and repair it.
Leaks in Kensington and Chelsea: questions answered
How soon can you attend in Kensington or Chelsea?
Usually the next working day, coming in from Watford. For an active leak in a flat above others, say so when booking and we will prioritise it where we can.
Which parts of Kensington and Chelsea do you cover?
All of W8, SW3 and SW10: Kensington, Chelsea, Sloane Square, Chelsea Green, World's End, West Brompton and Chelsea Harbour.
Can you work in a listed building without damaging original finishes?
Our methods are non-invasive by design. Thermal imaging, tracer gas, acoustic listening and the borescope locate the leak before anything is opened, so any access is one small area at the marked point, agreed with you first.
Will your report work for the block policy as well as my own?
Yes. We set out which pipework the leak is on, whether it serves one flat or the building. Detection, access and repair are kept separate, which is what the block insurer and the leaseholder both need to see.
Suspect a leak in Kensington and Chelsea?
Call now and we will tell you straight away whether it needs a same-day visit. Or send a photo of the stain, the meter or the boiler gauge on WhatsApp.
07516 755 680



