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Croydon · CR0, CR2, CR5, CR7

Leak Detection in Croydon

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

Croydon's housing spans Victorian and Edwardian terraces in South Norwood and Thornton Heath, 1930s semis around Purley and Coulsdon, and the borough's distinctive 1960s and 1970s tower blocks and flat-roofed low-rise developments near the town centre. This mix of ageing pipework, subdivided flats stacked above one another, and flat roofing means hidden leaks often develop unseen before staining or damp appears below.

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 Croydon we cover

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

Common leaks in Croydon homes

Flat roof leaks on Croydon's tower blocks and low-rise flats

Croydon town centre and Waddon have a concentration of 1960s and 1970s flat-roofed blocks, and many South Norwood and Broad Green conversions carry the same roofing style. Ageing felt or asphalt coverings crack and perish quietly, letting rainwater track along joists and ceilings for months. Residents often notice a musty smell or a ceiling stain long before the roof itself shows any visible fault.

Bathrooms leaking through Victorian and Edwardian conversions

Thornton Heath, South Norwood and Norbury have large numbers of Victorian and Edwardian terraces split into upper and lower flats, sharing waste stacks and floor voids. A failed shower tray seal or a cracked waste pipe upstairs can send water into the flat below through original lath and plaster ceilings, often going unreported until the downstairs neighbour spots bubbling paint or a damp patch.

Hidden pipework failures beneath Purley and Coulsdon's older semis

The 1930s semi-detached housing around Purley, Coulsdon, Sanderstead and Kenley still relies in places on original lead, galvanised or early copper plumbing run under solid concrete floors. Perished joints and pinhole corrosion allow escape of water that seeps silently beneath screed before it reaches skirting boards, meaning a slow leak can undermine flooring and subfloor timbers well before it becomes visible.

What our customers say

★★★★★

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

★★★★★

Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.

Keiryn Raf, via Google

★★★★★

Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)

Joeie Rouse, 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 Croydon?

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

Frequently asked questions

How much does leak detection in Croydon 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.