Oxted, Surrey
Positive input ventilation (PIV) in Oxted
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Oxted and RH8, RH9 and TN16.
- From £875 inc VAT per home
- Free survey
Condensation in Oxted homes usually has one of two answers: better extract fans, or PIV as well.
For positive input ventilation (PIV) in Oxted, 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 Oxted at a glance
- Town
- Oxted, Surrey
- Postcode districts
- RH8, RH9 and TN16
- Nearby
- Caterham (4 miles), Biggin Hill (4 miles) and Sanderstead (6 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
PIV for Oxted 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 Oxted
| 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.
When to get it looked at
- 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
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 Oxted
How do I get a price for a PIV unit in Oxted?
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.
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.
What area around Oxted do you work in?
All of Surrey. Near Oxted that includes Caterham, Biggin Hill, Sanderstead and Kenley.
Do you cover Oxted and nearby?
Yes. We cover Oxted and nearby places including Caterham, Biggin Hill, Sanderstead and Kenley. Send your postcode and we will confirm.
Tell us whether your Oxted home has a loft and we can price a PIV unit before visiting.
PIV near Oxted
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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.