Rotherhithe, Greater London
Positive input ventilation (PIV) in Rotherhithe
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Rotherhithe and E1, E1W and SE16.
- From £950 inc VAT per home
- Free survey
PIV can suit Rotherhithe houses and flats because it treats the whole home from one quiet unit.
Customers in Rotherhithe can get a guide price online in a couple of minutes. It uses London rates, which is what we would charge for the same job anywhere in Greater London. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Rotherhithe at a glance
- Town
- Rotherhithe, Greater London
- Postcode districts
- E1, E1W and SE16
- Nearby
- Shadwell (1 mile), Whitechapel (1 mile) and Limehouse (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
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.
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 Rotherhithe
| 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.
Common reasons people call
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
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 Rotherhithe
How do I get a price for a PIV unit in Rotherhithe?
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 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.
What area around Rotherhithe do you work in?
All of Greater London. Near Rotherhithe that includes Shadwell, Whitechapel, Limehouse and Stepney.
Do you cover Rotherhithe and nearby?
Yes. We cover Rotherhithe and nearby places including Shadwell, Whitechapel, Limehouse and Stepney. Send your postcode and we will confirm.
Book a free Rotherhithe survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Rotherhithe
More services in Rotherhithe
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.