Bexley, Greater London
Positive input ventilation (PIV) in Bexley
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bexley and DA5, DA6, DA14 and DA15.
- From £950 inc VAT per home
- Free survey
For a typical Bexley semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Customers in Bexley 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. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV 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)
How we approach PIV in Bexley
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Bexley
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,200–£2,025 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £175–£355 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
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Bexley
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.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What is the price of a PIV unit in Bexley?
Guide prices for Bexley use London rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £950 to £1,675 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Bexley?
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.
Get a PIV guide price for your Bexley home online, then confirm it on a free survey.
PIV near Bexley
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