Putney, Greater London
Condensation and mould ventilation fixes in Putney
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Putney and SW6, SW15 and SW18.
- From £525 inc VAT per fan
- Free survey

For tenants, landlords and homeowners in Putney, the common question is why the mould keeps coming back.
For condensation and mould ventilation fixes in Putney, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
Condensation and mould fixes in Putney at a glance
- Town
- Putney, Greater London
- Postcode districts
- SW6, SW15 and SW18
- Nearby
- Roehampton (1 mile), Barnes (2 miles) and Fulham (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Putney homes
Mould needs that damp surface to grow. Ventilation is usually the biggest part of the cure, but not the only part.
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 Putney
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £415–£725 inc VAT |
| Condensation and mould ventilation survey with written findings (per home) | £150–£270 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Musty smell in bedrooms or wardrobes
- Peeling paint or wallpaper in bathrooms
- Damp patches that dry out in summer and return in winter
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). Damp and mould is assessed as a hazard under the Housing Health and Safety Rating System in England.
Questions from Putney
Do you cover Putney and nearby?
Yes. We cover Putney and nearby places including Roehampton, Barnes, Fulham and Earlsfield. Send your postcode and we will confirm.
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.
What is the price of a condensation fix in Putney?
Guide prices for Putney use London rates: new ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) is typically £525 to £900 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Is the survey free in Putney?
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.
Book a condensation survey in Putney and get a written list of causes and fixes.
Condensation and mould fixes near Putney
More services in Putney
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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.