Thornton Heath, Greater London
Condensation and mould ventilation fixes in Thornton Heath
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Thornton Heath and CR7, SE19 and SE25.
- From £525 inc VAT per fan
- Free survey
Mould in a Thornton Heath bedroom or bathroom is almost always a ventilation problem first.
Customers in Thornton Heath can get a guide price online in a couple of minutes. It uses London rates, which is what we would charge for the same job anywhere in Greater London. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Condensation and mould fixes in Thornton Heath at a glance
- Town
- Thornton Heath, Greater London
- Postcode districts
- CR7, SE19 and SE25
- Nearby
- South Norwood (1 mile), Croydon (1 mile) and Upper Norwood (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
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.
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 Thornton Heath
| Work | Guide price |
|---|---|
| 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 |
| Condensation and mould ventilation survey with written findings (per home) | £150–£270 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Black mould on window reveals, ceilings or behind furniture
- Water running down windows on cold mornings
- Musty smell in bedrooms or wardrobes
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 Thornton Heath
What area around Thornton Heath do you work in?
All of Greater London. Near Thornton Heath that includes South Norwood, Croydon, Upper Norwood and Norbury.
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.
Do you cover Thornton Heath and nearby?
Yes. We cover Thornton Heath and nearby places including South Norwood, Croydon, Upper Norwood and Norbury. Send your postcode and we will confirm.
What is the price of a condensation fix in Thornton Heath?
Guide prices for Thornton Heath 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.
We can log humidity in your Thornton Heath home afterwards so you can see the improvement.
Condensation and mould fixes near Thornton Heath
More services in Thornton Heath
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.