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Radlett · WD7

Leak Detection in Radlett

Non-destructive water leak detection across Radlett, 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 Radlett homeowners, landlords & property managers

Last updated 19 September 2026

Quick answer: If you have a suspected water leak at a property in Radlett, 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 Radlett

Radlett's housing stock ranges from large detached mock-Tudor and Edwardian houses along Watling Street and Newberries Avenue to 1960s and 1970s executive homes with flat-roofed extensions, plus newer apartment blocks near the station. This mix of older cellars, extended kitchens and garden rooms, and ageing flat roofs on well-appointed properties creates numerous hidden points where water can penetrate unnoticed for months.

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 Radlett we cover

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

Common leaks in Radlett homes

Flat-roofed extensions and garden rooms

Many Radlett properties have added kitchen extensions, garages or garden rooms with flat roofs, common on the village's larger plots. Felt or GRP coverings degrade over time, and once the membrane fails, water tracks along joists and insulation before appearing as a stain well away from the actual entry point, often above fitted kitchens or utility rooms.

En suite bathrooms leaking into rooms below

The larger detached and executive homes around Radlett frequently have multiple en suite bathrooms above bedrooms or living spaces. Perished silicone seals around showers and baths, or a cracked tray, let water seep through the floor unnoticed, sometimes for weeks, before it shows as a ceiling stain or soft patch of plaster in the room below.

Ageing plumbing in period and extended properties

Older houses in and around Radlett, including converted and extended Edwardian and interwar homes, often retain original pipework alongside newer additions. Joints between old and new plumbing, or pipework buried within extended floors and walls, are prone to failure, allowing escape of water to spread silently within cavities before any visible sign appears.

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 Radlett?

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

Book online

Frequently asked questions

How much does leak detection in Radlett 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 Radlett

Damp and mould survey

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

Structural drying

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

Mould removal

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