Richmond, Greater London
Condensation and mould ventilation fixes in Richmond
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Richmond and SW13, SW14, TW1 and TW10.
- From £525 inc VAT per fan
- Free survey
In Richmond homes, black mould usually comes down to the same few causes: weak fans, loft-vented ducts and no background ventilation.
Richmond is about 102 miles from our base in Great Barr, Birmingham. We book Richmond visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Condensation and mould fixes in Richmond at a glance
- Town
- Richmond, Greater London
- Postcode districts
- SW13, SW14, TW1, TW10 and TW11
- Nearby
- Kew (2 miles), East Sheen (2 miles) and Brentford (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Richmond homes
If extract fans are weak, ducted into the loft or switched off, and windows stay shut in winter, that moisture settles on the coldest surfaces: window reveals, external corners, behind wardrobes and on bathroom ceilings. Mould needs that damp surface to grow.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Whole-home ventilation
PIV, continuous extract or MVHR where moisture is spread through the house.
Guide prices in Richmond
| 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
- 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 Richmond
Do you cover Richmond and nearby?
Yes. We cover Richmond and nearby places including Kew, East Sheen, Brentford and Mortlake. Send your postcode and we will confirm.
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 is the price of a condensation fix in Richmond?
Guide prices for Richmond 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 Richmond?
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.
We can log humidity in your Richmond home afterwards so you can see the improvement.
Condensation and mould fixes near Richmond
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