Shirley, West Midlands
Positive input ventilation (PIV) in Shirley (West Midlands)
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Shirley and B28, B90 and B91.
- From £795 inc VAT per home
- Free survey
For a typical Shirley semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
We cover Shirley and the surrounding B28, B90 and B91 postcodes as part of our work across the West Midlands. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Shirley at a glance
- Town
- Shirley, West Midlands
- Postcode districts
- B28, B90 and B91
- Nearby
- Solihull (2 miles), Acocks Green (3 miles) and Knowle (4 miles)
- Price region
- West Midlands
- Survey
- Free survey (UK mainland)
What the work involves
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
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 Shirley
| 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 |
Guide prices using West Midlands rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- 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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Shirley
What is the price of a PIV unit in Shirley?
Guide prices for Shirley use West Midlands rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £795 to £1,395 inc VAT per home. We confirm a fixed price in writing before any work starts.
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.
Is the survey free in Shirley?
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 do I get a price for a PIV unit in Shirley?
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.
Book a free Shirley survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Shirley
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.