Purley, Greater London
Condensation and mould ventilation fixes in Purley
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Purley and CR2, CR5 and CR8.
- From £525 inc VAT per fan
- Free survey
Mould in a Purley bedroom or bathroom is almost always a ventilation problem first.
For condensation and mould ventilation fixes in Purley, 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 Purley at a glance
- Town
- Purley, Greater London
- Postcode districts
- CR2, CR5 and CR8
- Nearby
- Kenley (1 mile), Sanderstead (2 miles) and Coulsdon (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Purley homes
Heating patterns, insulation gaps and cold bridges matter too, and some damp is not condensation at all: leaks, penetrating damp and rising damp need different trades. We tell you if that is what we find rather than selling a fan that will not help.
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 Purley
| 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 |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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. Damp and mould is assessed as a hazard under the Housing Health and Safety Rating System in England.
Questions from Purley
What is the price of a condensation fix in Purley?
Guide prices for Purley 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.
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.
Is the survey free in Purley?
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.
How do I get a price for a condensation fix in Purley?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Ask for a Purley visit and we will test your existing fans before recommending anything.
Condensation and mould fixes near Purley
More services in Purley
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.