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Windsor · SL4

Damp, Mould & Leak Specialists in Windsor

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

Call 020 3051 8478Request a survey
★★★★★ 5.0 from 19 Google reviews · trusted by Windsor homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Windsor, 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.
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Damp, mould & leak services in Windsor

Windsor's housing spans Georgian and Victorian terraces around the Castle and Peascod Street, timber-framed cottages in Eton and Clewer, 1930s bay-fronted semis in Dedworth, and postwar estates further out, with riverside homes near Home Park and the Thames. This mix of solid-walled period buildings, ageing cavity walls and low-lying ground near the river means damp, condensation and flood-related problems are common across the town.

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 Windsor we cover

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

Common damp problems in Windsor homes

Riverside flooding and rising damp near the Thames

Properties along Home Park, Romney Lock and parts of Eton and Old Windsor sit close to the Thames floodplain and have experienced groundwater ingress and flood damage in wet winters. Rising damp is common in older solid-brick homes without effective damp-proof courses, and floors and skirtings near the river often stay damp long after water levels recede, encouraging mould growth in ground-floor rooms.

Solid-wall and listed buildings in the historic centre

Timber-framed and Georgian buildings around Windsor Castle, Church Street and parts of Eton High Street were built with solid walls and no cavity, making them prone to penetrating damp through brickwork and old lime render. Conservation area and listed status restrict the use of modern render, insulation or damp-proofing methods, so repairs need breathable materials and careful specification to avoid trapping moisture within the walls.

Condensation in 1930s semis and later extensions

Dedworth, Clewer and St Leonard's Road contain many 1930s bay-fronted semis and postwar homes that have been extended or converted with loft rooms and rear kitchens. Cavity walls in this era were not always insulated correctly, and added extensions frequently lack adequate ventilation, leading to condensation on cold walls, mould around windows and in bathrooms, and musty smells in poorly ventilated loft conversions.

What our customers say

Excellent
Rated 5.0 / 5 based on 19 reviews on

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✓ a month ago

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✓ 2 months ago

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✓ 2 months ago

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✓ 3 months ago

Great experience with this company from start to finish. They were professional, knowledgeable, and explained everything clearly without any pressure. The work was carried out efficiently and to a high standard, and we’ve already noticed a big improvement. It’s reassuring to deal with a team that genuinely cares about doing the job properly. Highly recommend to anyone dealing with damp or mould issues.

Dowan Barak✓ 5 months ago
See all reviews on 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 Windsor

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

Frequently asked questions

How much does a damp survey in Windsor 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 Windsor?
Yes. We survey properties across Windsor 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.