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Coulsdon · CR5, CR3

Leak Detection in Coulsdon

Non-destructive water leak detection across Coulsdon, tracing hidden leaks with thermal imaging, acoustic sensors and tracer gas, then drying and treating the damage before it becomes mould.

★★★★★ 5.0 from 21 Google reviews · trusted by Coulsdon homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Coulsdon, our specialists trace the source without tearing the place apart, using thermal, acoustic and tracer-gas methods. A leak is not over when the water stops. Mould can start within 48 hours, so we find the source, dry the structure and treat any mould, all with one company. Leak detection is a fixed £650. Tell us when you need us and we will fit the visit around you as closely as we can. If it is urgent, call 020 3051 8478.

Leak to dry to treated, one company in Coulsdon

Coulsdon's housing stock ranges from Edwardian villas around Old Coulsdon to 1930s semi-detached suburbs, post-war bungalows and newer developments on the former Cane Hill hospital site. This mix means properties carry different generations of plumbing and roofing, from ageing lead and copper pipework to modern flat-roofed extensions, each with its own hidden leak risks that only surface once damage has spread.

Leak Detection

Trace hidden water leaks without unnecessary damage using thermal, acoustic and tracer-gas methods. Leak detection →

Structural Drying

Dry walls, floors and voids after a leak or flood with monitored dehumidifiers, to completion. Structural drying →

Mould Treatment

Treat and prevent the mould that follows water damage, dealing with the moisture source first. Mould treatment →

Damp Investigation

Tell rising damp, penetrating damp and condensation apart, so the right repair is done once. Damp investigation →

Areas of Coulsdon we cover

We attend leaks right across Coulsdon and its neighbourhoods, including:

Common leaks in Coulsdon homes

Ageing Pipework in 1930s Semis

Many of Coulsdon's interwar semi-detached homes still run on original or partially replaced plumbing beneath solid floors and within party walls. Perished joints, corroded copper and old soldered fittings can fail quietly, sending water into subfloor voids and adjoining rooms for weeks before staining or a musty smell gives the problem away, by which point timber and plaster are often already affected.

Flat Roof Extensions and Loft Conversions

Rear kitchen extensions and loft conversions are common across Coulsdon's suburban streets, many finished with felt or GRP flat roofing that degrades over fifteen to twenty years. Perished flashing around chimneys and roof lights lets rainwater track along joists rather than dripping straight through, so damp patches often appear far from the actual entry point, delaying discovery and allowing rot to establish in hidden timbers.

En-Suite and Bathroom Leaks Above Living Space

Properties in Old Coulsdon and around Chipstead frequently have upstairs bathrooms or en-suites added over original ceilings not designed for wet rooms. Failed shower trays, cracked grout and perished silicone seals allow water to seep through the floor structure into the room below, often showing as a ceiling stain or sagging plasterboard long after the leak began, with joists and insulation left saturated underneath.

What our customers say

Excellent
Rated 5.0 / 5 based on 21 reviews on
Tip: If your water meter ticks over with every tap off, or a wall or ceiling stays damp with no obvious cause, there is a hidden leak. Finding it early is far cheaper than repairing the mould and damage it leaves behind.

Suspect a leak in Coulsdon?

Tell us the date you would like. Next-day visits are possible for urgent leaks: call the team on 020 3051 8478 and we will confirm a time.

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Frequently asked questions

How much does leak detection in Coulsdon cost?
Leak detection is a fixed £650. Tell us when you need us and we will fit the visit around you as closely as we can. If it is urgent, call us on 020 3051 8478. You get a written, insurance-ready report identifying the source.
Will you damage my home finding the leak?
No. We use non-destructive thermal imaging, acoustic sensors and tracer gas to pinpoint the leak before any access is opened up, so repairs are targeted.
Do you fix the damage after finding the leak?
Yes. A leak is not over when the water stops. We dry the structure with monitored dehumidifiers and treat any mould, so it is handled end to end.
Do you provide reports for insurance claims?
Yes. Every leak investigation comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.

More help in Coulsdon

Damp and mould survey

Find the real cause of damp, mould or a leak in a Coulsdon property, with a written report and photographs. Damp survey in Coulsdon →

Structural drying

Dry walls, floors and voids in Coulsdon after a leak or flood, monitored to completion. Structural drying in Coulsdon →

Mould removal

Treat black mould in a Coulsdon property and fix the moisture source behind it. Mould removal in Coulsdon →

See what you get before you book: read a real survey report from start to finish.