Dartford, Kent
Condensation and mould ventilation fixes in Dartford
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Dartford and DA1, DA2 and DA8.
- From £490 inc VAT per fan
- Free survey

In Dartford homes, black mould usually comes down to the same few causes: weak fans, loft-vented ducts and no background ventilation.
For condensation and mould ventilation fixes in Dartford, 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 Dartford at a glance
- Town
- Dartford, Kent
- Postcode districts
- DA1, DA2 and DA8
- Nearby
- Bexley (3 miles), Swanley (4 miles) and Belvedere (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Dartford
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.
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 Dartford
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £380–£650 inc VAT |
| Condensation and mould ventilation survey with written findings (per home) | £140–£250 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
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
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 Dartford
How do I get a price for a condensation fix in Dartford?
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 black mould dangerous?
Damp and mould can affect health, particularly for people with asthma, allergies, weak immune systems, children and older people, according to NHS and government guidance. It should be dealt with rather than lived with.
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.
What area around Dartford do you work in?
All of Kent. Near Dartford that includes Bexley, Swanley, Belvedere and Swanscombe.
Do you cover Dartford and nearby?
Yes. We cover Dartford and nearby places including Bexley, Swanley, Belvedere and Swanscombe. Send your postcode and we will confirm.
Book a condensation survey in Dartford and get a written list of causes and fixes.
Condensation and mould fixes near Dartford
More services in Dartford
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.