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Cannon Street · EC4N, EC4R, EC4M, EC4V

Leak Detection in Cannon Street

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

Cannon Street's residential stock is largely made up of converted Victorian and Edwardian commercial buildings, warehouse-to-flat conversions near the river at Queenhithe and Vintry, and newer mixed-use blocks sitting above shops and offices. This layered mix of old brickwork, retrofitted plumbing and shared risers means water finds hidden routes between floors far more easily than in purpose-built housing.

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 Cannon Street we cover

We attend leaks right across Cannon Street and its neighbourhoods, including:

Common leaks in Cannon Street homes

Flat roofs on converted warehouse buildings

Many riverside conversions near Queenhithe and Vintry retain the flat roofs and parapets of their original commercial use. Ageing membranes, poor falls and blocked outlets let water pool and seep through slowly, often tracking sideways along joists before appearing as a stain several metres from the actual entry point, making the source hard to trace without proper investigation.

Bathrooms leaking into the floor below

Where offices and shops have been split into stacked flats around Bank and Eastcheap, bathrooms were frequently squeezed into spaces never designed for wet rooms. Shared risers, tight boxed-in pipework and shortened waste runs mean a failed shower tray or cracked pan seal can send water straight through the ceiling of the unit below, sometimes for weeks before it is noticed.

Perished seals and failed plumbing in older pipework

Victorian and Edwardian buildings around Walbrook and Dowgate still carry sections of original or early-replacement pipework alongside modern retrofits. Where old lead or iron joins newer plastic fittings, seals perish and expansion movement works connections loose, causing a slow escape of water within voids and skirtings that can go undetected until timber and plaster have already absorbed significant moisture.

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 Cannon Street?

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.

Book online

Frequently asked questions

How much does leak detection in Cannon Street 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 Cannon Street

Damp and mould survey

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

Structural drying

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

Mould removal

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

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