St Ives, Cambridgeshire
Positive input ventilation (PIV) in St Ives
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering St Ives and CB24, PE27 and PE29.
- From £825 inc VAT per home
- Free survey

If your St Ives flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Customers in St Ives can get a guide price online in a couple of minutes. It uses East of England rates, which is what we would charge for the same job anywhere in Cambridgeshire. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in St Ives at a glance
- Town
- St Ives, Cambridgeshire
- Postcode districts
- CB24, PE27 and PE29
- Nearby
- Huntingdon (5 miles), Chatteris (10 miles) and St Neots (11 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in St Ives
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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in St Ives
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,475 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,050–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£310 inc VAT |
Guide prices using East of England 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
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 St Ives
Do you cover St Ives and nearby?
Yes. We cover St Ives and nearby places including Huntingdon, Chatteris, St Neots and Cambridge. 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 St Ives?
Guide prices for St Ives use East of England rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,475 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in St Ives?
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.
Most St Ives PIV jobs are done in half a day, so ask about the next available date.
PIV near St Ives
More services in St Ives
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.