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Speak to a Specialist
Osterley · TW7

Damp Survey Osterley: Damp, Mould and Water Damage Assessment

The Assessment (what many people call a damp survey) is one non-destructive visit that finds the cause of damp, mould or a hidden leak across Osterley and the surrounding area, with a clear, insurance-ready report.

★★★★★ 5.0 from 22 Google reviews
Quick answer: If you have damp, mould or a suspected water leak at a property in Osterley, your first visit is a Damp, Mould and Water Damage Assessment. Our specialists carry out a non-destructive investigation to find the root cause, then give you a written report with photographs and a clear plan to fix it. Your report follows within 3 to 5 working days of the visit. We confirm the price on a written quote once we understand the problem. Call 020 3051 8478.

Damp, mould & leak services in Osterley

Osterley's housing stock is dominated by 1930s suburban semi-detached and detached houses built around the Great West Road's expansion, many with bay windows, solid brick cavity walls and original single-glazed frames. Pockets of Art Deco style properties near Osterley Park sit alongside 1960s-70s infill and ex-council terraces towards Spring Grove, meaning solid wall bridging, ageing pointing and outdated damp-proof courses are common culprits for moisture problems.

Leak Detection

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

Damp, Mould and Water Damage Assessment

One visit that finds the cause of damp, mould or water damage, and tells rising damp, penetrating damp and condensation apart. About the Assessment →

Mould Treatment

Treat black mould and deal with the moisture source behind it, so it does not keep coming back. Mould treatment →

Structural Drying

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

Areas of Osterley we cover

We visit properties right across Osterley and its neighbourhoods, including:

Common damp problems in Osterley homes

Rising damp in 1930s semis

Many of Osterley's interwar semi-detached homes near Wyke Green and Thornbury Road still rely on original bitumen or slate damp-proof courses laid in the 1930s, which have often failed or been bridged by raised patios and flowerbeds. This lets groundwater track up through solid brick walls, leaving tide marks, crumbling plaster and musty smells in ground floor rooms and hallways.

Condensation in converted flats

Around Spring Grove and towards Hounslow, larger period houses have been split into flats with poor cross-ventilation and shared boiler systems. Bathrooms and kitchens without working extractor fans generate persistent condensation, leading to black mould on north-facing bedroom walls and inside wardrobes, particularly where tenants dry washing indoors during colder months.

Roof and gutter leaks on older stock

Properties bordering Osterley Park and the older streets off Jersey Road often retain original clay tile roofs and cast iron guttering nearing the end of their service life. Blocked or corroded gutters cause water to overshoot and penetrate roof timbers and chimney breasts, resulting in brown ceiling stains and slow timber rot that's frequently mistaken for simple redecoration issues.

What our customers say

Excellent
Rated 5.0 / 5 based on 22 reviews on
Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. An assessment that finds the source first saves paying for the same repair twice.

Request an Assessment in Osterley

Call 020 3051 8478 or send us your details and we will agree a date with you. We work with homeowners, landlords and property managers across Osterley.

Frequently asked questions

How much does a Damp, Mould and Water Damage Assessment in Osterley cost?
We confirm the price on a written quote once we understand the problem. Your first visit is a Damp, Mould and Water Damage Assessment, which includes the non-destructive investigation and an insurance-ready written report with photographs. If leak detection is needed, we quote for it separately before any work starts.
Do you cover the whole of Osterley?
Yes. We visit properties across Osterley 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 assessment identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every assessment comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents. Your report follows within 3 to 5 working days of the visit.

More help in Osterley

Leak detection

Trace a hidden water leak in Osterley using thermal, acoustic and tracer gas methods, with minimal damage. Leak detection in Osterley →

Structural drying

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

Mould removal

Treat black mould in your Osterley property and fix the moisture source behind it. Mould removal in Osterley →

See what you get before you speak to us: read a real report from start to finish.