Biggleswade, Bedfordshire
Positive input ventilation (PIV) in Biggleswade
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Biggleswade and SG17, SG18 and SG19.
- From £825 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Biggleswade, after checking the house first.
For positive input ventilation (PIV) in Biggleswade, 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.
PIV in Biggleswade at a glance
- Town
- Biggleswade, Bedfordshire
- Postcode districts
- SG17, SG18 and SG19
- Nearby
- Sandy (3 miles), Henlow (4 miles) and Baldock (8 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Biggleswade
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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Biggleswade
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,475 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,050–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£310 inc VAT |
These ranges use our East of England rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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 Biggleswade
What area around Biggleswade do you work in?
All of Bedfordshire. Near Biggleswade that includes Sandy, Henlow, Baldock and Letchworth Garden City.
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.
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.
Do you cover Biggleswade and nearby?
Yes. We cover Biggleswade and nearby places including Sandy, Henlow, Baldock and Letchworth Garden City. Send your postcode and we will confirm.
What is the price of a PIV unit in Biggleswade?
Guide prices for Biggleswade use East of England rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,475 inc VAT per home. We confirm a fixed price in writing before any work starts.
Get a PIV guide price for your Biggleswade home online, then confirm it on a free survey.
PIV near Biggleswade
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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.