Windsor, Berkshire
Condensation and mould ventilation fixes in Windsor
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Windsor and SL1, SL3 and SL4.
- From £490 inc VAT per fan
- Free survey

For Windsor homes with streaming windows every morning, the fix is usually cheaper than people expect.
Customers in Windsor can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Berkshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Condensation and mould fixes in Windsor at a glance
- Town
- Windsor, Berkshire
- Postcode districts
- SL1, SL3 and SL4
- Nearby
- Slough (2 miles), Egham (4 miles) and Burnham (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Windsor homes
Ventilation is usually the biggest part of the cure, but not the only part. Heating patterns, insulation gaps and cold bridges matter too, and some damp is not condensation at all: leaks, penetrating damp and rising damp need different trades.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Guide prices in Windsor
| Work | Guide price |
|---|---|
| Condensation and mould ventilation survey with written findings (per home) | £140–£250 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £490–£825 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- Peeling paint or wallpaper in bathrooms
- Damp patches that dry out in summer and return in winter
- Someone in the home with asthma or allergies made worse by damp
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Serious damp and mould is a hazard under the Housing Health and Safety Rating System, and social landlords now have fixed timescales under Awaab's Law.
Questions from Windsor
How do I get a price for a condensation fix in Windsor?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Can you tell if it is rising damp?
We can tell you when the pattern does not look like condensation, such as a tide mark low on a wall or damp that appears after rain, and point you to the right specialist.
What is the main cause of condensation in a house?
The main cause is moisture from everyday living, such as showers, cooking and drying clothes, that is not being extracted, combined with cold surfaces where it condenses. Poor or failed extract fans are a very common cause.
What area around Windsor do you work in?
All of Berkshire. Near Windsor that includes Slough, Egham, Burnham and Staines.
Do you cover Windsor and nearby?
Yes. We cover Windsor and nearby places including Slough, Egham, Burnham and Staines. Send your postcode and we will confirm.
Send us photos of the mould and your fans and we will give a first view for your Windsor home.
Condensation and mould fixes near Windsor
More services in Windsor
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.