Gipsy Hill, Greater London
Positive input ventilation (PIV) in Gipsy Hill
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Gipsy Hill and SE19, SE21 and SE27.
- From £950 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Gipsy Hill, after checking the house first.
Gipsy Hill is about 110 miles from our base in Great Barr, Birmingham. We book Gipsy Hill visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Gipsy Hill at a glance
- Town
- Gipsy Hill, Greater London
- Postcode districts
- SE19, SE21 and SE27
- Nearby
- Crystal Palace (1 mile), Upper Norwood (1 mile) and Norbury (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Gipsy Hill
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Gipsy Hill
| 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 |
These ranges use our London 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
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 Gipsy Hill
What area around Gipsy Hill do you work in?
All of Greater London. Near Gipsy Hill that includes Crystal Palace, Upper Norwood, Norbury and Streatham.
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.
Do you cover Gipsy Hill and nearby?
Yes. We cover Gipsy Hill and nearby places including Crystal Palace, Upper Norwood, Norbury and Streatham. Send your postcode and we will confirm.
What is the price of a PIV unit in Gipsy Hill?
Guide prices for Gipsy Hill 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.
Book a free Gipsy Hill survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Gipsy Hill
More services in Gipsy Hill
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.