Bexley, Greater London
Condensation and mould ventilation fixes in Bexley
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Bexley and DA5, DA6, DA14 and DA15.
- From £525 inc VAT per fan
- Free survey

For tenants, landlords and homeowners in Bexley, the common question is why the mould keeps coming back.
Whether the property is in the middle of Bexley or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
Condensation and mould fixes in Bexley at a glance
- Town
- Bexley, Greater London
- Postcode districts
- DA5, DA6, DA14, DA15 and DA16
- Nearby
- Sidcup (2 miles), Welling (2 miles) and Dartford (3 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Bexley homes
Ventilation is usually the biggest part of the cure, but not the only part. 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.
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 Bexley
| Work | Guide price |
|---|---|
| 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 |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Someone in the home with asthma or allergies made worse by damp
- Black mould on window reveals, ceilings or behind furniture
- Water running down windows on cold mornings
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 Bexley
How do I get a price for a condensation fix in Bexley?
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.
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.
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 area around Bexley do you work in?
All of Greater London. Near Bexley that includes Sidcup, Welling, Dartford and Swanley.
Do you cover Bexley and nearby?
Yes. We cover Bexley and nearby places including Sidcup, Welling, Dartford and Swanley. Send your postcode and we will confirm.
Send us photos of the mould and your fans and we will give a first view for your Bexley home.
Condensation and mould fixes near Bexley
More services in Bexley
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.