Mangotsfield, Gloucestershire
Positive input ventilation (PIV) in Mangotsfield
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Mangotsfield and BS5, BS15 and BS16.
- From £825 inc VAT per home
- Free survey
For a typical Mangotsfield semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Customers in Mangotsfield can get a guide price online in a couple of minutes. It uses South West rates, which is what we would charge for the same job anywhere in Gloucestershire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Mangotsfield at a glance
- Town
- Mangotsfield, Gloucestershire
- Postcode districts
- BS5, BS15 and BS16
- Nearby
- Kingswood (2 miles), Stoke Gifford (2 miles) and Bristol (5 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Mangotsfield
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 Mangotsfield
| 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.
When to get it looked at
- 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 Mangotsfield
Do you cover Mangotsfield and nearby?
Yes. We cover Mangotsfield and nearby places including Kingswood, Stoke Gifford, Bristol and Keynsham. Send your postcode and we will confirm.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
What is the price of a PIV unit in Mangotsfield?
Guide prices for Mangotsfield 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 Mangotsfield?
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.
Book a free Mangotsfield survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Mangotsfield
More services in Mangotsfield
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.