Earlsfield, Greater London
Positive input ventilation (PIV) in Earlsfield
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Earlsfield and SW12, SW17 and SW18.
- From £950 inc VAT per home
- Free survey
PIV is often a good fix for Earlsfield homes with condensation on every window.
Earlsfield is about 106 miles from our base in Great Barr, Birmingham. We book Earlsfield visits by appointment and confirm the date in writing. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Earlsfield at a glance
- Town
- Earlsfield, Greater London
- Postcode districts
- SW12, SW17 and SW18
- Nearby
- Wimbledon Park (1 mile), Balham (2 miles) and Tooting (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Earlsfield homes
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 Earlsfield
| 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 |
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
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings 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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Earlsfield
What area around Earlsfield do you work in?
All of Greater London. Near Earlsfield that includes Wimbledon Park, Balham, Tooting and Wimbledon.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
Do you cover Earlsfield and nearby?
Yes. We cover Earlsfield and nearby places including Wimbledon Park, Balham, Tooting and Wimbledon. Send your postcode and we will confirm.
What is the price of a PIV unit in Earlsfield?
Guide prices for Earlsfield 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.
Most Earlsfield PIV jobs are done in half a day, so ask about the next available date.
PIV near Earlsfield
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