Chester-le-Street, County Durham
Positive input ventilation (PIV) in Chester-le-Street
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Chester-le-Street and DH2, DH3 and NE38.
- From £725 inc VAT per home
- Free survey

PIV is often a good fix for Chester-le-Street homes with condensation on every window.
Chester-le-Street is about 160 miles from our base in Great Barr, Birmingham. We book Chester-le-Street visits by appointment and confirm the date in writing. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Chester-le-Street at a glance
- Town
- Chester-le-Street, County Durham
- Postcode districts
- DH2, DH3 and NE38
- Nearby
- Washington (4 miles), Houghton-le-Spring (4 miles) and Stanley (5 miles)
- Price region
- North East
- Survey
- Free survey (UK mainland)
PIV for Chester-le-Street homes
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Chester-le-Street
| 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 |
North East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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). 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 Chester-le-Street
What area around Chester-le-Street do you work in?
All of County Durham. Near Chester-le-Street that includes Washington, Houghton-le-Spring, Stanley and Durham.
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.
Do you cover Chester-le-Street and nearby?
Yes. We cover Chester-le-Street and nearby places including Washington, Houghton-le-Spring, Stanley and Durham. Send your postcode and we will confirm.
What is the price of a PIV unit in Chester-le-Street?
Guide prices for Chester-le-Street 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.
Most Chester-le-Street PIV jobs are done in half a day, so ask about the next available date.
PIV near Chester-le-Street
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