Leak Detection in Finchley
Finchley is Edwardian and 1930s housing with mansion blocks and post-war flats around North Finchley, and a combi boiler losing pressure is the call we hear most.

Leaks in Finchley homes
Finchley is largely Edwardian and 1930s housing: semis and short terraces around Church End and West Finchley, bigger detached houses in Woodside Park, and 1930s mansion blocks and post-war low-rise flats around North Finchley and Tally Ho. Many of the semis have had the kitchen extended and the heating moved to a combi, which puts new pipework in a solid floor next to old pipework under floorboards. Pressure loss in those mixed systems is a regular complaint, and the leak can be in either half of the house.
We cover N3 and N12, including Finchley Central, Church End, West Finchley, North Finchley, Woodside Park and Tally Ho. Typical calls are a combi boiler losing pressure, a damp patch at the bottom of a chimney breast wall that turns out to be a heating pipe, and a leak between flats in a mansion block. Nitrogen pressure testing tells us whether the heating circuit is actually losing water. Tracer gas then locates the point, and the thermal camera confirms it before any floor is opened.
Parking around Finchley Central and North Finchley is permit controlled during the day, so a visitor permit or a nearby pay and display bay is the usual answer. Roads in Woodside Park and West Finchley are easier. The equipment comes on a trolley, so one space near the door is enough. You receive a written report with photographs, thermal images and the pressure test readings, prepared for a trace and access claim on your buildings insurance.
What we detect in Finchley

Central heating leak detection
A boiler that keeps dropping pressure means water is escaping somewhere in the heating circuit. We find the pipe or fitting and fix it.
Heating leaks
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
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
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
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 Finchley: questions answered
How soon can you come to Finchley?
Usually the next working day. We travel in from Watford and group North London visits together, so an early booking gets the earliest slot.
Which parts of Finchley do you cover?
All of N3 and N12: Finchley Central, Church End, West Finchley, North Finchley, Woodside Park and Tally Ho.
I own a flat in a 1930s mansion block in Finchley. Can you find a leak in the shared pipework?
Yes. We trace the risers and the pipework in the floor void with thermal imaging and moisture readings, and the report says whether the leak is within your flat or on the shared system, which decides who claims.
What does a pressure test tell you?
We isolate the heating circuit and put it under nitrogen pressure. If the gauge drops, water is leaving the system somewhere, and the rate of the drop gives us an idea of the size of the leak before we start tracing.
Suspect a leak in Finchley?
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


