Spitalfields, Greater London
Positive input ventilation (PIV) in Spitalfields
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Spitalfields and EC2A, EC2M and EC3A.
- From £950 inc VAT per home
- Free survey

PIV is often a good fix for Spitalfields homes with condensation on every window.
Work in Spitalfields follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Spitalfields at a glance
- Town
- Spitalfields, Greater London
- Postcode districts
- EC2A, EC2M and EC3A
- Nearby
- Whitechapel (1 mile), Bethnal Green (1 mile) and Shadwell (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Spitalfields
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.
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 Spitalfields
| 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
- 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
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 Spitalfields
What is the price of a PIV unit in Spitalfields?
Guide prices for Spitalfields 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.
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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
Is the survey free in Spitalfields?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
How do I get a price for a PIV unit in Spitalfields?
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.
Book a free Spitalfields survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Spitalfields
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