Bishopsworth, Somerset
Positive input ventilation (PIV) in Bishopsworth
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bishopsworth and BS3, BS13 and BS41.
- From £825 inc VAT per home
- Free survey
PIV is often a good fix for Bishopsworth homes with condensation on every window.
We cover Bishopsworth and the surrounding BS3, BS13 and BS41 postcodes as part of our work across Somerset. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Bishopsworth at a glance
- Town
- Bishopsworth, Somerset
- Postcode districts
- BS3, BS13 and BS41
- Nearby
- Bristol (3 miles), Keynsham (5 miles) and Kingswood (6 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Bishopsworth
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Bishopsworth
| 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.
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
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Bishopsworth
Is the survey free in Bishopsworth?
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 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.
How do I get a price for a PIV unit in Bishopsworth?
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.
What area around Bishopsworth do you work in?
All of Somerset. Near Bishopsworth that includes Bristol, Keynsham, Kingswood and Nailsea.
We will check the existing fans in your Bishopsworth home at the same visit, because PIV works best with them working.
PIV near Bishopsworth
More services in Bishopsworth
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.