West Molesey, Surrey
Positive input ventilation (PIV) in West Molesey
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering West Molesey and KT8, KT12 and KT13.
- From £875 inc VAT per home
- Free survey
Condensation in West Molesey homes usually has one of two answers: better extract fans, or PIV as well.
Work in West Molesey follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in West Molesey at a glance
- Town
- West Molesey, Surrey
- Postcode districts
- KT8, KT12 and KT13
- Nearby
- Hampton (1 mile), East Molesey (1 mile) and Sunbury-on-Thames (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
PIV for West Molesey 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.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in West Molesey
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 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
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 West Molesey
How do I get a price for a PIV unit in West Molesey?
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 long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
What area around West Molesey do you work in?
All of Surrey. Near West Molesey that includes Hampton, East Molesey, Sunbury-on-Thames and Walton-on-Thames.
Do you cover West Molesey and nearby?
Yes. We cover West Molesey and nearby places including Hampton, East Molesey, Sunbury-on-Thames and Walton-on-Thames. Send your postcode and we will confirm.
Tell us whether your West Molesey home has a loft and we can price a PIV unit before visiting.
PIV near West Molesey
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