Wells, Somerset
Positive input ventilation (PIV) in Wells
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Wells and BA4, BA5 and BA6.
- From £825 inc VAT per home
- Free survey

PIV can suit Wells houses and flats because it treats the whole home from one quiet unit.
Work in Wells follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Wells at a glance
- Town
- Wells, Somerset
- Postcode districts
- BA4, BA5 and BA6
- Nearby
- Shepton Mallet (5 miles), Street (7 miles) and Midsomer Norton (9 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Wells
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.
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 Wells
| 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.
Common reasons people call
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Wells
How do I get a price for a PIV unit in Wells?
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.
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.
What area around Wells do you work in?
All of Somerset. Near Wells that includes Shepton Mallet, Street, Midsomer Norton and Frome.
Do you cover Wells and nearby?
Yes. We cover Wells and nearby places including Shepton Mallet, Street, Midsomer Norton and Frome. Send your postcode and we will confirm.
Tell us whether your Wells home has a loft and we can price a PIV unit before visiting.
PIV near Wells
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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.