Banstead, Surrey
Positive input ventilation (PIV) in Banstead
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Banstead and KT17, SM2 and SM7.
- From £875 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Banstead, after checking the house first.
Banstead is about 112 miles from our base in Great Barr, Birmingham. We book Banstead visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Banstead at a glance
- Town
- Banstead, Surrey
- Postcode districts
- KT17, SM2 and SM7
- Nearby
- Belmont (2 miles), Sutton (2 miles) and Ewell (3 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Banstead
| 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.
Common reasons people call
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
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 Banstead
What is the price of a PIV unit in Banstead?
Guide prices for Banstead use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
Is the survey free in Banstead?
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.
How do I get a price for a PIV unit in Banstead?
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.
Tell us whether your Banstead home has a loft and we can price a PIV unit before visiting.
PIV near Banstead
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.