Speak to a Specialist
Speak to a Specialist
Heston · TW5 (with adjoining TW4 and TW3 fringes)

Damp Survey Heston: 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 Heston 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 Heston, 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 Heston

Heston's housing stock is dominated by 1930s bay-fronted semis and terraces built as London expanded along the Great West Road, alongside postwar council-built estates around Heston West and Vicarage Farm and newer flat developments near Heston Road. Solid-wall interwar brick, ageing rendered elevations and flat-roofed extensions common across these properties all make penetrating damp, condensation and roof leaks persistent 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 Heston we cover

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

Common damp problems in Heston homes

Solid-wall damp in 1930s semis

Many of Heston's bay-fronted semis and terraces off Heston Road and Vicarage Farm Road were built with solid brick walls and no cavity, so driving rain and rising groundwater penetrate more easily than in newer housing. Original render is now cracking or spalling in places, and cement-based repairs trap moisture behind the wall, leading to damp patches, blown plaster and mould around skirtings and chimney breasts.

Condensation in postwar council flats

The postwar low-rise blocks and maisonettes around Heston West and North Hyde were built with limited insulation and small kitchens and bathrooms lacking effective extraction. Combined with double glazing retrofits that sealed properties without adding ventilation, moisture from cooking, drying washing and bathing has nowhere to escape, producing black mould on north-facing walls, window reveals and behind wardrobes.

Flat-roof and extension leaks near Osterley and Spring Grove

Many Heston properties near Osterley and Spring Grove have had rear kitchen or bathroom extensions added with flat felt or asphalt roofs, a common feature of 1960s-80s home improvements in this part of west London. These roofs degrade after 15-20 years, and failed flashing where the extension meets the original brickwork lets water track down internal walls, causing staining, damp plasterboard and mould in newly built-out spaces.

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 Heston

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 Heston.

Frequently asked questions

How much does a Damp, Mould and Water Damage Assessment in Heston 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 Heston?
Yes. We visit properties across Heston 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 Heston

Leak detection

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

Structural drying

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

Mould removal

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

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