Bournemouth, Dorset
Positive input ventilation (PIV) in Bournemouth
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bournemouth and BH1, BH2 and BH4.
- From £825 inc VAT per home
- Free survey
If your Bournemouth flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Work in Bournemouth follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Bournemouth at a glance
- Town
- Bournemouth, Dorset
- Postcode districts
- BH1, BH2 and BH4
- Nearby
- Christchurch (4 miles), Canford Heath (4 miles) and Poole (5 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
What the work involves
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 Bournemouth
| 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
- 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 Bournemouth
Do you cover Bournemouth and nearby?
Yes. We cover Bournemouth and nearby places including Christchurch, Canford Heath, Poole and Broadstone. Send your postcode and we will confirm.
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 is the price of a PIV unit in Bournemouth?
Guide prices for Bournemouth 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.
Is the survey free in Bournemouth?
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.
Tell us whether your Bournemouth home has a loft and we can price a PIV unit before visiting.
PIV near Bournemouth
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