Rochester, Kent
Positive input ventilation (PIV) in Rochester
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Rochester and ME1, ME4 and ME5.
- From £875 inc VAT per home
- Free survey
Condensation in Rochester homes usually has one of two answers: better extract fans, or PIV as well.
For positive input ventilation (PIV) in Rochester, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Rochester at a glance
- Town
- Rochester, Kent
- Postcode districts
- ME1, ME4 and ME5
- Nearby
- Chatham (1 mile), Strood (1 mile) and Gillingham (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in Rochester
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Rochester
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
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). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Rochester
What area around Rochester do you work in?
All of Kent. Near Rochester that includes Chatham, Strood, Gillingham and Snodland.
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.
Do you cover Rochester and nearby?
Yes. We cover Rochester and nearby places including Chatham, Strood, Gillingham and Snodland. Send your postcode and we will confirm.
What is the price of a PIV unit in Rochester?
Guide prices for Rochester use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
We will check the existing fans in your Rochester home at the same visit, because PIV works best with them working.
PIV near Rochester
More services in Rochester
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.