Book onlineSpeak to a Specialist
Speak to a SpecialistBook online
Belgravia · SW1X, SW1W

Leak Detection in Belgravia

Non-destructive water leak detection across Belgravia, 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 Belgravia homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Belgravia, 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 Belgravia

Belgravia's housing stock is dominated by Grade II listed, white stucco-fronted Regency terraces, many carved into upper flats over lower ground and basement units, alongside cobbled mews houses and embassy conversions. Lead flat roofs, shared plumbing risers, and later basement excavations under strict conservation rules make hidden leaks common and often expensive to trace before damage spreads.

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 Belgravia we cover

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

Common leaks in Belgravia homes

Basement and Lower Ground Floor Tanking Failures

Many Belgravia terraces have had lower ground floors and lightwell basements converted into extra living space, often tanked to hold back groundwater. Where membranes were poorly detailed around door thresholds or service penetrations, water tracks in slowly, appearing as damp skirting or lifting flooring long before a visible puddle forms, by which point the tanking membrane itself may need re-exposing to repair.

Perished Lead Roofs and Parapet Gutters

The flat and low-pitched lead roofs typical of Belgravia's Regency terraces rely on parapet and valley gutters that silently deteriorate over decades. Splits in aged lead flashing or blocked outlets let rainwater sit and seep through the roof deck, tracking along joists and party walls into the flat below. Because the roof is rarely inspected directly, the leak often surfaces as a stain on a top-floor ceiling weeks later.

Stacked Bathrooms in Converted Terrace Flats

Grand stucco townhouses split into multiple flats typically stack bathrooms directly above one another, sharing risers built long before modern waterproofing standards. A failed shower tray seal or a cracked waste pipe joint on an upper floor can leak for months within the lath-and-plaster ceiling void below, hidden behind ornate cornicing, only becoming obvious once staining or a sagging ceiling appears in the flat underneath.

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 Belgravia?

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

Book online

Frequently asked questions

How much does leak detection in Belgravia 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 Belgravia

Damp and mould survey

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

Structural drying

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

Mould removal

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