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Croxley Green · WD3

Leak Detection in Croxley Green

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

★★★★★ 5.0 from 20 Google reviews · trusted by Croxley Green homeowners, landlords & property managers

Last updated 19 September 2026

Quick answer: If you have a suspected water leak at a property in Croxley Green, 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, usually carried out within 3 to 5 working days. Urgent same-day or next-day leak detection adds £200 on a weekday, or £300 in the evening, on a Saturday or a Sunday, making it £850 or £950 in total. Call 020 3051 8478.

Leak to dry to treated, one company in Croxley Green

Croxley Green is dominated by 1920s and 1930s semi-detached and detached family homes, alongside interwar estates near Baldwins Lane and newer builds on the Croxley Danes development. Ageing lead and cast iron plumbing, flat-roofed rear extensions and bathrooms added above ground-floor rooms mean hidden escapes of water are a recurring issue across the village's older housing stock.

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 Croxley Green we cover

We attend leaks right across Croxley Green and its neighbourhoods, including:

Common leaks in Croxley Green homes

Perished seals in 1930s bathrooms

Many Croxley Green semis retain original or dated bathroom layouts, often positioned directly above kitchens or hallways. Grouting, silicone seals and old shower trays perish over time, letting water seep through the floor unnoticed. Because these bathrooms were rarely tanked to modern standards, moisture tracks along joists and ceiling boards, appearing as a stain downstairs long after the seal itself failed.

Flat roof extensions and rear additions

Rear kitchen and utility extensions are common across Croxley Green's interwar streets, many finished with flat felt or asphalt roofs now decades old. These roofs are prone to splitting, ponding and perished flashing where they meet the original brickwork, allowing rainwater to track slowly into ceiling voids and wall cavities rather than causing an obvious, immediate leak.

Failed plumbing joints in older pipework

Properties around Baldwins Lane and the older parts of the village frequently still have galvanised or early copper pipework feeding upstairs bathrooms and kitchens. Corroded joints and soldered fittings weaken with age and can release water gradually behind boxed-in panels or under floorboards, going undetected until skirting boards, flooring or ceilings below start to show damp patches.

What our customers say

Excellent
Rated 5.0 / 5 based on 20 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 Croxley Green?

Call 020 3051 8478 or report a leak online. We trace, dry and treat for homeowners, landlords and managing agents across Croxley Green.

Book online

Frequently asked questions

How much does leak detection in Croxley Green cost?
Leak detection is a fixed £650, usually carried out within 3 to 5 working days. Urgent same-day or next-day leak detection adds £200 on a weekday, or £300 in the evening, on a Saturday or a Sunday, making it £850 or £950 in total. 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 Croxley Green

Damp and mould survey

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

Structural drying

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

Mould removal

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