Corsham, Wiltshire
Condensation and mould ventilation fixes in Corsham
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Corsham and SN12, SN13 and SN14.
- From £465 inc VAT per fan
- Free survey
In Corsham homes, black mould usually comes down to the same few causes: weak fans, loft-vented ducts and no background ventilation.
We cover Corsham and the surrounding SN12, SN13 and SN14 postcodes as part of our work across Wiltshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Condensation and mould fixes in Corsham at a glance
- Town
- Corsham, Wiltshire
- Postcode districts
- SN12, SN13 and SN14
- Nearby
- Neston (2 miles), Chippenham (3 miles) and Melksham (5 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
What the work involves
A typical family puts several litres of water into the air every day. 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.
Whole-home ventilation
PIV, continuous extract or MVHR where moisture is spread through the house.
Mould treatment advice
How to clean and treat affected areas once the cause is fixed.
Guide prices in Corsham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £360–£625 inc VAT |
| Condensation and mould ventilation survey with written findings (per home) | £130–£235 inc VAT |
These ranges use our South West 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. Damp and mould is assessed as a hazard under the Housing Health and Safety Rating System in England.
Questions from Corsham
What area around Corsham do you work in?
All of Wiltshire. Near Corsham that includes Neston, Chippenham, Melksham and Calne.
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.
Do you cover Corsham and nearby?
Yes. We cover Corsham and nearby places including Neston, Chippenham, Melksham and Calne. Send your postcode and we will confirm.
What is the price of a condensation fix in Corsham?
Guide prices for Corsham use South West rates: new ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) is typically £465 to £775 inc VAT per fan. We confirm a fixed price in writing before any work starts.
If we fit the fix, the Corsham survey is free.
Condensation and mould fixes near Corsham
More services in Corsham
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