Shoreham-by-Sea, West Sussex
Positive input ventilation (PIV) in Shoreham-by-Sea
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Shoreham-by-Sea and BN15, BN42 and BN43.
- From £875 inc VAT per home
- Free survey

Condensation in Shoreham-by-Sea homes usually has one of two answers: better extract fans, or PIV as well.
Shoreham-by-Sea is about 138 miles from our base in Great Barr, Birmingham. We book Shoreham-by-Sea visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Shoreham-by-Sea at a glance
- Town
- Shoreham-by-Sea, West Sussex
- Postcode districts
- BN15, BN42 and BN43
- Nearby
- Lancing (2 miles), Portslade (3 miles) and Worthing (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in Shoreham-by-Sea
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Shoreham-by-Sea
| 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 |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- 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
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 Shoreham-by-Sea
Do you cover Shoreham-by-Sea and nearby?
Yes. We cover Shoreham-by-Sea and nearby places including Lancing, Portslade, Worthing and Hove. Send your postcode and we will confirm.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
What is the price of a PIV unit in Shoreham-by-Sea?
Guide prices for Shoreham-by-Sea 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.
Is the survey free in Shoreham-by-Sea?
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.
Most Shoreham-by-Sea PIV jobs are done in half a day, so ask about the next available date.
PIV near Shoreham-by-Sea
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