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Bank · EC2, EC3, EC4

Leak Detection in Bank

Non-destructive water leak detection across Bank, 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 Bank homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Bank, 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 is £1,000. Call 020 3051 8478.

Leak to dry to treated, one company in Bank

Bank sits at the historic heart of the City of London, where Victorian and Georgian banking halls and office buildings have increasingly been converted into residential apartments alongside newer high-rise developments. Many conversions retrofit bathrooms and kitchens into structures never designed to carry plumbing, while older masonry buildings retain original lead pipework and flat roofs, creating particular vulnerability to hidden leaks and escape of water.

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 Bank we cover

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

Common leaks in Bank homes

Retrofitted Bathrooms in Converted Office Buildings

Many buildings around Cornhill and Lombard Street began life as banking halls or merchant offices before being converted into flats. Bathrooms and kitchens were often squeezed into upper floors using new stacks and risers that were never part of the original design, and joints in these retrofitted runs can fail quietly behind plaster, sending water into the commercial units or flats below before anyone notices.

Flat Roofs Over Penthouse Conversions

Where Victorian and Edwardian office blocks near Moorgate and Threadneedle Street have had penthouse or top-floor flats added, the flat roofs covering them are frequently ageing felt or asphalt systems nearing the end of their working life. Once the membrane perishes or blisters, rainwater tracks slowly through the roof void and ceiling voids, appearing as staining or damp patches in rooms below long after the leak began.

Perished Seals in Historic Lead and Cast Iron Pipework

Buildings around the Bank junction and Poultry often retain original lead soil pipes or cast iron stacks, particularly where listed facades restrict how much can be replaced. The seals and joints in this ageing pipework harden and perish with age, allowing water to escape gradually into voids behind panelling or heritage plasterwork, where it can go undetected until timber or finishes are visibly affected.

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 Bank?

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

Book online

Frequently asked questions

How much does leak detection in Bank cost?
Leak detection is a fixed £650, usually carried out within 3 to 5 working days. Urgent same-day or next-day leak detection is £1,000. 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 Bank

Damp and mould survey

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

Structural drying

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