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Hillingdon · UB8, UB9, UB10, UB3, UB4, UB5, UB7

Damp, Mould & Leak Specialists in Hillingdon

Non-destructive damp surveys, hidden leak detection and mould investigation across Hillingdon and the surrounding area, with clear, insurance-ready reports.

★★★★★ 4.9 from 17 Google reviews · trusted by Hillingdon homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Hillingdon, our specialists carry out a non-destructive survey to find the root cause, then give you a written report and a clear plan to fix it. A full damp and mould survey is a fixed £500. Call 020 3051 8478.

Damp, mould & leak services in Hillingdon

Hillingdon's housing stock spans Edwardian terraces in Hayes and Yiewsley, interwar semi-detached properties across Ruislip and Eastcote, and post-war council-built estates in Northolt and South Ruislip. This varied mix, combined with the borough's low-lying clay-heavy ground and proximity to the River Pinn and Colne, creates persistent conditions for rising damp, penetrating damp and concealed leaks.

Leak Detection

Trace hidden water leaks without damage using thermal, acoustic and tracer-gas methods. Leak detection →

Damp Investigation

Identify rising damp, penetrating damp and condensation, and tell them apart properly. Damp investigation →

Mould Inspection

Find the moisture source feeding the mould, not just treat the surface. Mould inspection →

Structural Drying

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

Areas of Hillingdon we cover

We survey properties right across Hillingdon and its neighbourhoods, including:

Common damp problems in Hillingdon homes

Rising Damp in Hayes and Yiewsley Terraces

The late Victorian and Edwardian terraced streets of Hayes and Yiewsley were built on dense London clay with minimal or no damp-proof courses. Over time, these original bitumen or slate barriers break down entirely, allowing ground moisture to wick upward through brick and mortar. Homeowners frequently report tide-marked plaster, peeling skirting boards and a persistent musty smell at ground-floor level, particularly in back reception rooms and hallways.

Penetrating Damp in Ruislip and Ickenham Semis

The interwar semi-detached properties that characterise Ruislip, Ickenham and Eastcote often feature cavity walls that were never insulated or were later filled with blown fibre or bead insulation. When that insulation becomes saturated or bridges the cavity, rainwater tracks directly through to interior walls. Repeated driving rain from the west makes west-facing elevations particularly vulnerable, producing cold, damp patches that are regularly misidentified as condensation by owners.

Hidden Leaks in Post-War Estates Across Northolt and South Ruislip

Northolt and South Ruislip contain large areas of post-war local authority housing, much of it built using non-traditional construction methods including no-fines concrete and prefabricated panels. Ageing flat roofs, original lead flashings and decades-old pipework running within or beneath solid concrete floors make concealed plumbing leaks and roof-fed ingress particularly difficult to locate and diagnose without specialist moisture surveying equipment.

What our customers say

★★★★★

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

★★★★★

I have been dealing with damp and mould for years but these guys were able to come in and resolve the problem quickly and professionally. Their prices were fair and reasonable and they got the job done clean. 10/10 would use again and would recommend.

Thersa Waron Eurmind, via Google

Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. A survey that finds the source first saves paying for the same repair twice.

Book a survey in Hillingdon

Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Hillingdon. Works are on a 50% upfront, 50% on completion basis.

Frequently asked questions

How much does a damp survey in Hillingdon cost?
A damp and mould survey is a fixed £500, including the non-destructive investigation and an insurance-ready written report. Leak detection, if needed, is £800 to £1500 depending on scale.
Do you cover the whole of Hillingdon?
Yes. We survey properties across Hillingdon and the surrounding neighbourhoods and postcodes.
Can you tell the difference between condensation, rising and penetrating damp?
Yes, and it matters because the fix differs for each. Our survey identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every survey comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.