Cirencester, Gloucestershire
Positive input ventilation (PIV) in Cirencester
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Cirencester and GL7.
- From £825 inc VAT per home
- Free survey

For a typical Cirencester semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Cirencester is about 58 miles from our base in Great Barr, Birmingham. We book Cirencester visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Cirencester at a glance
- Town
- Cirencester, Gloucestershire
- Postcode districts
- GL7
- Nearby
- Stroud (10 miles), Charlton Kings (12 miles) and Royal Wootton Bassett (13 miles)
- Price region
- South West
- 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.
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 Cirencester
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,025–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£305 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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 Cirencester
What area around Cirencester do you work in?
All of Gloucestershire. Near Cirencester that includes Stroud, Charlton Kings, Royal Wootton Bassett and Cheltenham.
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 Cirencester and nearby?
Yes. We cover Cirencester and nearby places including Stroud, Charlton Kings, Royal Wootton Bassett and Cheltenham. Send your postcode and we will confirm.
What is the price of a PIV unit in Cirencester?
Guide prices for Cirencester use South West rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,450 inc VAT per home. We confirm a fixed price in writing before any work starts.
Book a free Cirencester survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Cirencester
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