Melksham, Wiltshire
Positive input ventilation (PIV) in Melksham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Melksham and BA14, SN12 and SN13.
- From £825 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Melksham, after checking the house first.
We cover Melksham and the surrounding BA14, SN12 and SN13 postcodes as part of our work across Wiltshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Melksham at a glance
- Town
- Melksham, Wiltshire
- Postcode districts
- BA14, SN12 and SN13
- Nearby
- Neston (4 miles), Corsham (5 miles) and Trowbridge (5 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Melksham
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 Melksham
| 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.
Common reasons people call
- 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
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Melksham
What is the price of a PIV unit in Melksham?
Guide prices for Melksham 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.
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.
Is the survey free in Melksham?
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 Melksham?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker Melksham quote.
PIV near Melksham
More services in Melksham
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.