Cheam, Greater London
Condensation and mould ventilation fixes in Cheam
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Cheam and SM1, SM2 and SM3.
- From £525 inc VAT per fan
- Free survey
For tenants, landlords and homeowners in Cheam, the common question is why the mould keeps coming back.
We cover Cheam and the surrounding SM1, SM2 and SM3 postcodes as part of our work across Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Condensation and mould fixes in Cheam at a glance
- Town
- Cheam, Greater London
- Postcode districts
- SM1, SM2 and SM3
- Nearby
- Sutton (1 mile), Ewell (2 miles) and Belmont (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Cheam
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 Cheam
| Work | Guide price |
|---|---|
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £415–£725 inc VAT |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- 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
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Cheam
Is the survey free in Cheam?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
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.
Will a dehumidifier fix condensation?
A dehumidifier helps in one room but treats the symptom. Fixing the extract in the wet rooms, and adding whole-home ventilation where needed, removes moisture before it spreads.
How do I get a price for a condensation fix in Cheam?
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.
What area around Cheam do you work in?
All of Greater London. Near Cheam that includes Sutton, Ewell, Belmont and Worcester Park.
Send us photos of the mould and your fans and we will give a first view for your Cheam home.
Condensation and mould fixes near Cheam
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.