Sandbach, Cheshire
Positive input ventilation (PIV) in Sandbach
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sandbach and CW1, CW4 and CW11.
- From £750 inc VAT per home
- Free survey

PIV can suit Sandbach houses and flats because it treats the whole home from one quiet unit.
Customers in Sandbach can get a guide price online in a couple of minutes. It uses North West rates, which is what we would charge for the same job anywhere in Cheshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Sandbach at a glance
- Town
- Sandbach, Cheshire
- Postcode districts
- CW1, CW4 and CW11
- Nearby
- Alsager (4 miles), Crewe (5 miles) and Middlewich (5 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
PIV for Sandbach 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 Sandbach
| 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 |
Guide prices using North West rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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 that apply 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.
Questions from Sandbach
Is the survey free in Sandbach?
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 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.
How do I get a price for a PIV unit in Sandbach?
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.
What area around Sandbach do you work in?
All of Cheshire. Near Sandbach that includes Alsager, Crewe, Middlewich and Congleton.
Send a photo of your loft hatch area and landing ceiling for a quicker Sandbach quote.
PIV near Sandbach
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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.