Cobham, Surrey
Condensation and mould ventilation fixes in Cobham
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Cobham and KT11, KT13 and KT14.
- From £490 inc VAT per fan
- Free survey

Mould in a Cobham bedroom or bathroom is almost always a ventilation problem first.
Customers in Cobham 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 Surrey. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Condensation and mould fixes in Cobham at a glance
- Town
- Cobham, Surrey
- Postcode districts
- KT11, KT13 and KT14
- Nearby
- Esher (3 miles), Weybridge (4 miles) and Great Bookham (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Cobham
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. We tell you if that is what we find rather than selling a fan that will not help.
Mould treatment advice
How to clean and treat affected areas once the cause is fixed.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Guide prices in Cobham
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £380–£650 inc VAT |
| 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 |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- Water running down windows on cold mornings
- Musty smell in bedrooms or wardrobes
- Peeling paint or wallpaper in bathrooms
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 Cobham
How do I get a price for a condensation fix in Cobham?
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 Cobham do you work in?
All of Surrey. Near Cobham that includes Esher, Weybridge, Great Bookham and Walton-on-Thames.
Do you cover Cobham and nearby?
Yes. We cover Cobham and nearby places including Esher, Weybridge, Great Bookham and Walton-on-Thames. Send your postcode and we will confirm.
If we fit the fix, the Cobham survey is free.
Condensation and mould fixes near Cobham
More services in Cobham
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.