Leak Detection in Stevenage
Stevenage is mostly New Town neighbourhoods built from the 1950s on, with heating pipes set in concrete floors, plus the Old Town and the newer houses of Great Ashby.

Leaks in Stevenage homes
Bedwell, Broadwater, Chells, Pin Green, Shephall, Symonds Green, St Nicholas and Martins Wood were built from the 1950s to the 1970s. Most have solid concrete ground floors with heating pipes laid in the screed. After decades of heating and cooling, a copper pipe in screed can corrode and lose water with no visible sign. The Old Town has Victorian and older houses with suspended timber floors and long copper runs. Great Ashby and the newer estates on the edge of town have plastic pipework, pressurised heating systems and in some houses underfloor heating.
We cover SG1 and SG2, including the Old Town, Bedwell, Broadwater, Chells, Pin Green, Shephall, Symonds Green, St Nicholas, Martins Wood, Poplars and Great Ashby. The usual call is a boiler losing pressure with no drip anywhere. We pressure test the heating circuit to confirm the loss, put tracer gas into the drained pipework and follow it across the floor with the detector. Thermal imaging shows the pipe layout first so the search is quick. A wet patch at the front of the house usually points to the supply pipe, which we find with the acoustic ground microphone.
Most Stevenage neighbourhoods have garages and parking courts a short walk from the house, so we bring the equipment in on a trolley. In the Old Town parking is tighter near the high street. We protect floors and keep any opening up to the marked point. The written report includes photographs, thermal images and the pressure readings, and states the cause and the location. It is prepared for a trace and access claim on your buildings insurance, and we are happy to speak to the loss adjuster about how the leak was found.
What we detect in Stevenage

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
Acoustic leak detection
A ground microphone listens for the sound of water escaping under pressure through floors, concrete and paving, and the reading peaks directly over the leak.
Acoustic
Water mains and underground leak detection
Leaking supply pipes under driveways, gardens and concrete floors, located with acoustic and tracer gas kit so only one small excavation is needed.
Mains & underground
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 Stevenage: questions answered
How soon can you get to Stevenage?
Usually the next working day. Stevenage is up the A1(M) from Watford, so we plan visits there alongside Hitchin and Letchworth. If water is coming through a ceiling, call and we will tell you honestly when we can be with you.
Which parts of Stevenage do you cover?
All of SG1 and SG2, including the Old Town, Bedwell, Broadwater, Chells, Pin Green, Shephall, Symonds Green, St Nicholas, Martins Wood, Poplars and Great Ashby.
How do you find a heating leak under a concrete floor in a New Town house?
We confirm the loss with a pressure test, drain the circuit and fill it with a hydrogen and nitrogen tracer gas. The gas escapes at the leak and rises through the concrete, and the detector shows us where. Thermal imaging and the pipe layout narrow the search first. This is a detection method and is not gas-safety work.
Will trace and access cover pay for breaking the concrete floor?
Trace and access cover usually pays for locating the leak and for making good the floor opened to reach it. The repair of the pipe itself is usually not covered. We set the three parts out separately in the report so the claim is clear.
Suspect a leak in Stevenage?
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



