Home ventilation, Warwickshire
Positive input ventilation (PIV) in Warwickshire
Loft or wall units that gently push filtered air into the home to tackle condensation, across Warwickshire.
- From £795 inc VAT per home
- Free survey

Condensation in Warwickshire homes usually has one of two answers: better extract fans, or PIV as well.
Warwickshire has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
PIV in Warwickshire at a glance
- Area
- Warwickshire
- Towns listed
- 9, largest Nuneaton
- Postcode districts
- CV35, CV37, CV4, CV8, CV9 and CV10
- Price region
- West Midlands
- Survey
- Free survey (UK mainland)
What the work involves
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. PIV works well in houses and flats with general condensation on windows and cold walls.
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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Warwickshire
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £795–£1,395 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £995–£1,695 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £145–£295 inc VAT |
These ranges use our West Midlands rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
Rules 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.
How the job runs
- Survey
- Fixed quote
- Install
- Set up
- Hand over
Towns we cover in Warwickshire
Questions about positive input ventilation (PIV) in Warwickshire
Is the survey free in Warwickshire?
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.
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.
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.
Which rules apply to ventilation in Warwickshire?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Which towns in Warwickshire do you cover?
All of Warwickshire, including Nuneaton, Rugby, Royal Leamington Spa, Warwick and Bedworth. If your town is not listed, send the postcode and we will confirm.
Tell us whether your Warwickshire home has a loft and we can price a PIV unit before visiting.
Other services in Warwickshire
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.