Westbury, Wiltshire
Positive input ventilation (PIV) in Westbury
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Westbury and BA13 and BA14.
- From £825 inc VAT per home
- Free survey
For a typical Westbury semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Whether the property is in the middle of Westbury or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in Westbury at a glance
- Town
- Westbury, Wiltshire
- Postcode districts
- BA13 and BA14
- Nearby
- Warminster (4 miles), Trowbridge (4 miles) and Frome (6 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Westbury
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.
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 Westbury
| 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.
When to get it looked at
- 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
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 Westbury
How do I get a price for a PIV unit in Westbury?
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.
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.
What area around Westbury do you work in?
All of Wiltshire. Near Westbury that includes Warminster, Trowbridge, Frome and Melksham.
Do you cover Westbury and nearby?
Yes. We cover Westbury and nearby places including Warminster, Trowbridge, Frome and Melksham. Send your postcode and we will confirm.
Most Westbury PIV jobs are done in half a day, so ask about the next available date.
PIV near Westbury
More services in Westbury
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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.