Bo’ness, Forth Valley
Positive input ventilation (PIV) in Bo’ness
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bo’ness and EH49, EH51 and FK3.
- From £775 inc VAT per home
- Free survey

PIV can suit Bo’ness houses and flats because it treats the whole home from one quiet unit.
We cover Bo’ness and the surrounding EH49, EH51 and FK3 postcodes as part of our work across the Forth Valley. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Bo’ness at a glance
- Town
- Bo’ness, Forth Valley
- Postcode districts
- EH49, EH51 and FK3
- Nearby
- Linlithgow (3 miles), Grangemouth (4 miles) and Falkirk (7 miles)
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
PIV for Bo’ness homes
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 Bo’ness
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £775–£1,350 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,625 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£285 inc VAT |
Guide prices using Scotland rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- 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 Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. Extract and whole-home rates are designed to the Scottish standards and measured at handover.
Questions from Bo’ness
Do you cover Bo’ness and nearby?
Yes. We cover Bo’ness and nearby places including Linlithgow, Grangemouth, Falkirk and Rosyth. Send your postcode and we will confirm.
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.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
What is the price of a PIV unit in Bo’ness?
Guide prices for Bo’ness use Scotland rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,350 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Bo’ness?
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 Bo’ness home has a loft and we can price a PIV unit before visiting.
PIV near Bo’ness
More services in Bo’ness
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.