Catford, Greater London
Positive input ventilation (PIV) in Catford
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Catford and SE4, SE6 and SE13.
- From £950 inc VAT per home
- Free survey
If your Catford flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
For positive input ventilation (PIV) in Catford, 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 Catford at a glance
- Town
- Catford, Greater London
- Postcode districts
- SE4, SE6 and SE13
- Nearby
- Ladywell (1 mile), Crofton Park (1 mile) and Forest Hill (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Catford
| 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 |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Catford
How do I get a price for a PIV unit in Catford?
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.
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 area around Catford do you work in?
All of Greater London. Near Catford that includes Ladywell, Crofton Park, Forest Hill and Perry Vale.
Do you cover Catford and nearby?
Yes. We cover Catford and nearby places including Ladywell, Crofton Park, Forest Hill and Perry Vale. Send your postcode and we will confirm.
Most Catford PIV jobs are done in half a day, so ask about the next available date.
PIV near Catford
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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.