Cowley, Oxfordshire
Positive input ventilation (PIV) in Cowley
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Cowley and OX1, OX3 and OX4.
- From £875 inc VAT per home
- Free survey
PIV can suit Cowley houses and flats because it treats the whole home from one quiet unit.
Work in Cowley follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Cowley at a glance
- Town
- Cowley, Oxfordshire
- Postcode districts
- OX1, OX3 and OX4
- Nearby
- Oxford (2 miles), Abingdon (5 miles) and Kidlington (7 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in Cowley
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 Cowley
| 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
- 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
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 Cowley
What area around Cowley do you work in?
All of Oxfordshire. Near Cowley that includes Oxford, Abingdon, Kidlington and Didcot.
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.
Do you cover Cowley and nearby?
Yes. We cover Cowley and nearby places including Oxford, Abingdon, Kidlington and Didcot. Send your postcode and we will confirm.
What is the price of a PIV unit in Cowley?
Guide prices for Cowley 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.
Tell us whether your Cowley home has a loft and we can price a PIV unit before visiting.
PIV near Cowley
More services in Cowley
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.