Maidenhead, Berkshire
Positive input ventilation (PIV) in Maidenhead
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Maidenhead and SL6, SL7 and SL8.
- From £875 inc VAT per home
- Free survey
PIV can suit Maidenhead houses and flats because it treats the whole home from one quiet unit.
For positive input ventilation (PIV) in Maidenhead, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Maidenhead at a glance
- Town
- Maidenhead, Berkshire
- Postcode districts
- SL6, SL7 and SL8
- Nearby
- Burnham (2 miles), Marlow (4 miles) and Slough (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. 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.
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 Maidenhead
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
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 Maidenhead
What is the price of a PIV unit in Maidenhead?
Guide prices for Maidenhead use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
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.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
Is the survey free in Maidenhead?
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 Maidenhead?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker Maidenhead quote.
PIV near Maidenhead
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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.