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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.

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

★★★★★

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 Bank?

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

Frequently asked questions

How much does leak detection in Bank 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.