Gloucester, Gloucestershire
Positive input ventilation (PIV) in Gloucester
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Gloucester and GL1, GL2 and GL4.
- From £825 inc VAT per home
- Free survey

If your Gloucester flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
We cover Gloucester and the surrounding GL1, GL2 and GL4 postcodes as part of our work across Gloucestershire. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Gloucester at a glance
- Town
- Gloucester, Gloucestershire
- Postcode districts
- GL1, GL2 and GL4
- Nearby
- Churchdown (3 miles), Cheltenham (7 miles) and Stroud (8 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Gloucester
Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Gloucester
| 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 |
South West rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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 Gloucester
What is the price of a PIV unit in Gloucester?
Guide prices for Gloucester 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.
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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
Is the survey free in Gloucester?
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 Gloucester?
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.
Book a free Gloucester survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Gloucester
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