Tewkesbury, Gloucestershire
Positive input ventilation (PIV) in Tewkesbury
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Tewkesbury and GL20.
- From £825 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Tewkesbury, after checking the house first.
Work in Tewkesbury follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Tewkesbury at a glance
- Town
- Tewkesbury, Gloucestershire
- Postcode districts
- GL20
- Nearby
- Bishop's Cleeve (5 miles), Cheltenham (7 miles) and Churchdown (8 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
What the work involves
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. 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.
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 Tewkesbury
| 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 |
Guide prices using South West rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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 Tewkesbury
Is the survey free in Tewkesbury?
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 long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
How do I get a price for a PIV unit in Tewkesbury?
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.
What area around Tewkesbury do you work in?
All of Gloucestershire. Near Tewkesbury that includes Bishop's Cleeve, Cheltenham, Churchdown and Charlton Kings.
Tell us whether your Tewkesbury home has a loft and we can price a PIV unit before visiting.
PIV near Tewkesbury
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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.