Barnham, West Sussex
Positive input ventilation (PIV) in Barnham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Barnham and BN18, PO21 and PO22.
- From £875 inc VAT per home
- Free survey
Condensation in Barnham homes usually has one of two answers: better extract fans, or PIV as well.
Customers in Barnham can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in West Sussex. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Barnham at a glance
- Town
- Barnham, West Sussex
- Postcode districts
- BN18, PO21 and PO22
- Nearby
- Bognor Regis (4 miles), Littlehampton (4 miles) and Rustington (6 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
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.
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 Barnham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
Guide prices using South East 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
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 Barnham
Do you cover Barnham and nearby?
Yes. We cover Barnham and nearby places including Bognor Regis, Littlehampton, Rustington and Chichester. Send your postcode and we will confirm.
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.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
What is the price of a PIV unit in Barnham?
Guide prices for Barnham use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Barnham?
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 Barnham survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Barnham
More services in Barnham
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.