Durham, County Durham
Positive input ventilation (PIV) in Durham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Durham and DH1, DH6 and DH7.
- From £725 inc VAT per home
- Free survey
PIV can suit Durham houses and flats because it treats the whole home from one quiet unit.
Customers in Durham can get a guide price online in a couple of minutes. It uses North East rates, which is what we would charge for the same job anywhere in County Durham. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Durham at a glance
- Town
- Durham, County Durham
- Postcode districts
- DH1, DH6 and DH7
- Nearby
- Spennymoor (6 miles), Chester-le-Street (6 miles) and Hetton-le-Hole (6 miles)
- Price region
- North East
- Survey
- Free survey (UK mainland)
PIV for Durham homes
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Durham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £725–£1,275 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £925–£1,550 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £135–£270 inc VAT |
Guide prices using North East 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
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 Durham
Do you cover Durham and nearby?
Yes. We cover Durham and nearby places including Spennymoor, Chester-le-Street, Hetton-le-Hole and Houghton-le-Spring. Send your postcode and we will confirm.
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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What is the price of a PIV unit in Durham?
Guide prices for Durham use North East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £725 to £1,275 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Durham?
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 Durham survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Durham
More services in Durham
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.