Prestwich, Greater Manchester
Positive input ventilation (PIV) in Prestwich
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Prestwich and M7, M25 and M45.
- From £750 inc VAT per home
- Free survey

PIV is often a good fix for Prestwich homes with condensation on every window.
We cover Prestwich and the surrounding M7, M25 and M45 postcodes as part of our work across Greater Manchester. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Prestwich at a glance
- Town
- Prestwich, Greater Manchester
- Postcode districts
- M7, M25 and M45
- Nearby
- Whitefield (1 mile), Crumpsall (2 miles) and Radcliffe (3 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
PIV for Prestwich homes
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.
Guide prices in Prestwich
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
These ranges use our North West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
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 Prestwich
How do I get a price for a PIV unit in Prestwich?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
What area around Prestwich do you work in?
All of Greater Manchester. Near Prestwich that includes Whitefield, Crumpsall, Radcliffe and Cheetham Hill.
Do you cover Prestwich and nearby?
Yes. We cover Prestwich and nearby places including Whitefield, Crumpsall, Radcliffe and Cheetham Hill. Send your postcode and we will confirm.
Book a free Prestwich survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Prestwich
More services in Prestwich
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.