Eltham, Greater London
Positive input ventilation (PIV) in Eltham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Eltham and SE2, SE9, SE18 and SE28.
- From £950 inc VAT per home
- Free survey
Condensation in Eltham homes usually has one of two answers: better extract fans, or PIV as well.
For positive input ventilation (PIV) in Eltham, 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 Eltham at a glance
- Town
- Eltham, Greater London
- Postcode districts
- SE2, SE9, SE18 and SE28
- Nearby
- Kidbrooke (2 miles), Lee (2 miles) and Blackheath (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Eltham 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.
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 Eltham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,200–£2,025 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £175–£355 inc VAT |
Guide prices using London 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
- 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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Eltham
Do you cover Eltham and nearby?
Yes. We cover Eltham and nearby places including Kidbrooke, Lee, Blackheath and Chislehurst. Send your postcode and we will confirm.
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.
What is the price of a PIV unit in Eltham?
Guide prices for Eltham use London rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £950 to £1,675 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Eltham?
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.
Tell us whether your Eltham home has a loft and we can price a PIV unit before visiting.
PIV near Eltham
More services in Eltham
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.