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

PIV can suit Worcestershire houses and flats because it treats the whole home from one quiet unit.
Worcestershire 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 Worcestershire at a glance
- Area
- Worcestershire
- Towns listed
- 8, largest Worcester
- Postcode districts
- B60, WR10, WR11, WR3, WR4 and DY11
- Price region
- West Midlands
- Survey
- Free survey (UK mainland)
How we do it
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.
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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Worcestershire
| 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 |
West 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
- 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 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.
How the job runs
- Survey
- Fixed quote
- Install
- Set up
- Hand over
Towns we cover in Worcestershire
Questions about positive input ventilation (PIV) in Worcestershire
Are prices different in Worcestershire?
Our guide prices are adjusted by region. In Worcestershire we use West Midlands rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £795 to £1,395 inc VAT per home.
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.
Is the survey free in Worcestershire?
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.
Which rules apply to ventilation in Worcestershire?
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.
Tell us whether your Worcestershire home has a loft and we can price a PIV unit before visiting.
Other services in Worcestershire
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