Truro, Cornwall
Condensation and mould ventilation fixes in Truro
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Truro and TR1, TR3 and TR4.
- From £465 inc VAT per fan
- Free survey

For Truro homes with streaming windows every morning, the fix is usually cheaper than people expect.
For condensation and mould ventilation fixes in Truro, 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 Truro at a glance
- Town
- Truro, Cornwall
- Postcode districts
- TR1, TR3 and TR4
- Nearby
- Falmouth (8 miles), Redruth (8 miles) and Newquay (10 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Truro
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 Truro
| Work | Guide price |
|---|---|
| Condensation and mould ventilation survey with written findings (per home) | £130–£235 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £465–£775 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 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.
Common reasons people call
- 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 Truro
Do you cover Truro and nearby?
Yes. We cover Truro and nearby places including Falmouth, Redruth, Newquay and Camborne. 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 Truro?
Guide prices for Truro 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.
Is the survey free in Truro?
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 Truro and get a written list of causes and fixes.
Condensation and mould fixes near Truro
More services in Truro
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.