East Grinstead, West Sussex
Positive input ventilation (PIV) in East Grinstead
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering East Grinstead and RH7, RH18 and RH19.
- From £875 inc VAT per home
- Free survey
PIV can suit East Grinstead houses and flats because it treats the whole home from one quiet unit.
Whether the property is in the middle of East Grinstead or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in East Grinstead at a glance
- Town
- East Grinstead, West Sussex
- Postcode districts
- RH7, RH18 and RH19
- Nearby
- Horley (8 miles), Crawley (8 miles) and Crowborough (8 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in East Grinstead
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.
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.
Guide prices in East Grinstead
| 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 |
Guide prices using South East 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
- 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 East Grinstead
Is the survey free in East Grinstead?
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.
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.
How do I get a price for a PIV unit in East Grinstead?
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 East Grinstead do you work in?
All of West Sussex. Near East Grinstead that includes Horley, Crawley, Crowborough and Broadfield.
Book a free East Grinstead survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near East Grinstead
More services in East Grinstead
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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.