Norbury, Greater London
Positive input ventilation (PIV) in Norbury
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Norbury and SE19, SE27 and SW16.
- From £950 inc VAT per home
- Free survey
Condensation in Norbury homes usually has one of two answers: better extract fans, or PIV as well.
Whether the property is in the middle of Norbury 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 Norbury at a glance
- Town
- Norbury, Greater London
- Postcode districts
- SE19, SE27 and SW16
- Nearby
- Upper Norwood (1 mile), Streatham (1 mile) and Gipsy Hill (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Norbury homes
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Norbury
| 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.
When to get it looked at
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
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 Norbury
How do I get a price for a PIV unit in Norbury?
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 Norbury do you work in?
All of Greater London. Near Norbury that includes Upper Norwood, Streatham, Gipsy Hill and Furzedown.
Do you cover Norbury and nearby?
Yes. We cover Norbury and nearby places including Upper Norwood, Streatham, Gipsy Hill and Furzedown. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker Norbury quote.
PIV near Norbury
More services in Norbury
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.