Battersea, Greater London
Positive input ventilation (PIV) in Battersea
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Battersea and SW3, SW8 and SW11.
- From £950 inc VAT per home
- Free survey

If your Battersea flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Work in Battersea follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Battersea at a glance
- Town
- Battersea, Greater London
- Postcode districts
- SW3, SW8 and SW11
- Nearby
- Queenstown (under a mile), Latchmere (1 mile) and Chelsea (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Battersea homes
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 Battersea
| 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.
Signs it is time to call us
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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 Battersea
What area around Battersea do you work in?
All of Greater London. Near Battersea that includes Queenstown, Latchmere, Chelsea and Pimlico.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
Do you cover Battersea and nearby?
Yes. We cover Battersea and nearby places including Queenstown, Latchmere, Chelsea and Pimlico. Send your postcode and we will confirm.
What is the price of a PIV unit in Battersea?
Guide prices for Battersea 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 Battersea survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Battersea
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