Speak to a Specialist
Speak to a Specialist
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.

Call 020 3051 8478Report a leak
★★★★★ 4.9 from 17 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 £800 to £1500 depending on scale. Call 020 3051 8478.
On this page

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

★★★★★

Was lovely working with the team and they did a fantastic and quick job to get all the mould out of my bathroom. Very much looking forward to working with them on other projects around my house!! Thank you for everything and shout out to Karim for being so sweet!

Mariama, via Google

★★★★★

Omg what brilliant service, excellent the cleaner did a very good job was efficient he took his time and cleaned everything, highly recommend S. Bessim…

Susan Bessim, via Google

★★★★★

Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!

Patryk Gutowski, via Google

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.

Frequently asked questions

How much does leak detection in Belgravia cost?
Leak detection is £800 to £1500 depending on the scale and access. 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.