Positive input ventilation (PIV)
Loft or wall units that gently push filtered air into the home to tackle condensation.
Greater London · England
Homes, rentals and business premises in West End of London and W1C, W1H and W1U.
We cover West End of London (W1C, W1H and W1U) as part of our work across Greater London. We can help homeowners, landlords and businesses with new systems, testing, cleaning and repairs.
Landlords in West End of London can book a whole-property check: fans tested, trickle vents looked at and a written list of what to fix, which is useful evidence if a tenant reports damp or mould.
Commercial work in West End of London is priced from a site visit or your drawings. Kitchen extract cleaning, LEV testing and servicing visits are priced per system.
Loft or wall units that gently push filtered air into the home to tackle condensation.
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested.
We find why the house is wet and fix the ventilation, rather than painting over mould.
Tested fans and PIV for rental homes and HMOs, with records for your property file.
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £175–£295 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £7,750–£11,350 inc VAT |
Guide prices using London rates. Home prices include VAT at 20%; business prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
It depends on the job. As a guide, kitchen canopy and extract system for a café or takeaway (canopy up to 2 m) is typically £7,150 to £14,350 + VAT per kitchen, using London rates.
Yes. We cover West End of London (W1C, W1H and W1U) and nearby places including West End, Hyde Park, St James's and Knightsbridge and Belgravia.
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.
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.