Chaddesden, Derbyshire
Positive input ventilation (PIV) in Chaddesden
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Chaddesden and DE1, DE21 and DE22.
- From £775 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Chaddesden, after checking the house first.
Customers in Chaddesden can get a guide price online in a couple of minutes. It uses East Midlands rates, which is what we would charge for the same job anywhere in Derbyshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Chaddesden at a glance
- Town
- Chaddesden, Derbyshire
- Postcode districts
- DE1, DE21 and DE22
- Nearby
- Oakwood (1 mile), Derby (2 miles) and Sinfin (4 miles)
- Price region
- East Midlands
- Survey
- Free survey (UK mainland)
How we approach PIV in Chaddesden
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Chaddesden
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £775–£1,375 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £975–£1,650 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£290 inc VAT |
East Midlands rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- 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 Chaddesden
What area around Chaddesden do you work in?
All of Derbyshire. Near Chaddesden that includes Oakwood, Derby, Sinfin and Ilkeston.
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.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
Do you cover Chaddesden and nearby?
Yes. We cover Chaddesden and nearby places including Oakwood, Derby, Sinfin and Ilkeston. Send your postcode and we will confirm.
What is the price of a PIV unit in Chaddesden?
Guide prices for Chaddesden use East Midlands rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,375 inc VAT per home. We confirm a fixed price in writing before any work starts.
Tell us whether your Chaddesden home has a loft and we can price a PIV unit before visiting.
PIV near Chaddesden
More services in Chaddesden
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.