Ewell, Surrey
Positive input ventilation (PIV) in Ewell
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Ewell and KT4, KT17 and KT19.
- From £875 inc VAT per home
- Free survey
Condensation in Ewell homes usually has one of two answers: better extract fans, or PIV as well.
Customers in Ewell can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Surrey. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Ewell at a glance
- Town
- Ewell, Surrey
- Postcode districts
- KT4, KT17 and KT19
- Nearby
- Cheam (2 miles), Epsom (2 miles) and Worcester Park (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
PIV for Ewell homes
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.
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 Ewell
| 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.
When to get it looked at
- 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 Ewell
Is the survey free in Ewell?
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.
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.
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 do I get a price for a PIV unit in Ewell?
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 Ewell do you work in?
All of Surrey. Near Ewell that includes Cheam, Epsom, Worcester Park and Sutton.
Book a free Ewell survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Ewell
More services in Ewell
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.