Positive input ventilation (PIV)
Loft or wall units that gently push filtered air into the home to tackle condensation.
Merseyside · England
Homes, rentals and business premises in Woolton and L18, L25 and L27.
We cover Woolton (L18, L25 and L27) as part of our work across Merseyside. We can help homeowners, landlords and businesses with new systems, testing, cleaning and repairs.
For homes in Woolton the usual starting points are extractor fans, PIV and condensation surveys. Whole-home MVHR makes most sense in new builds, big refurbishments and very airtight houses.
For businesses in Woolton we cover office and shop ventilation, commercial kitchen extraction, duct cleaning to TR19 and planned servicing of air handling units.
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 |
|---|---|
| LEV thorough examination and test with written report (per system) | £185–£375 + VAT |
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £140–£235 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £425–£700 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
Guide prices using North West 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.
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.
Our team is based in Great Barr, Birmingham, about 69 miles away. Every visit is booked by appointment and confirmed in writing.
It depends on the job. As a guide, like-for-like extractor fan replacement (existing duct and wiring) is typically £165 to £280 inc VAT per fan, using North West rates.
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.