Forest Hill, Greater London
Condensation and mould ventilation fixes in Forest Hill
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Forest Hill and SE4, SE6 and SE23.
- From £525 inc VAT per fan
- Free survey
In Forest Hill, condensation and mould are usually at their worst between October and March.
For condensation and mould ventilation fixes in Forest Hill, 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 Forest Hill at a glance
- Town
- Forest Hill, Greater London
- Postcode districts
- SE4, SE6 and SE23
- Nearby
- Crofton Park (under a mile), Perry Vale (1 mile) and Catford (1 mile)
- Price region
- London
- 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.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Guide prices in Forest Hill
| 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
- Musty smell in bedrooms or wardrobes
- Peeling paint or wallpaper in bathrooms
- Damp patches that dry out in summer and return in winter
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Forest Hill
How do I get a price for a condensation fix in Forest Hill?
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.
Is PIV or MVHR better for condensation?
For most existing homes with general condensation, PIV plus good extract fans is the most cost-effective fix. MVHR suits airtight, well-insulated homes and full renovations.
How much does a condensation survey cost?
A ventilation survey with written findings costs £125 to £225 including VAT. If we are surveying for an installation we quote for, the survey is free.
What area around Forest Hill do you work in?
All of Greater London. Near Forest Hill that includes Crofton Park, Perry Vale, Catford and Ladywell.
Do you cover Forest Hill and nearby?
Yes. We cover Forest Hill and nearby places including Crofton Park, Perry Vale, Catford and Ladywell. Send your postcode and we will confirm.
We can log humidity in your Forest Hill home afterwards so you can see the improvement.
Condensation and mould fixes near Forest Hill
More services in Forest Hill
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.