Plymouth, Devon
Positive input ventilation (PIV) in Plymouth
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Plymouth and PL1, PL3 and PL4.
- From £825 inc VAT per home
- Free survey
PIV can suit Plymouth houses and flats because it treats the whole home from one quiet unit.
Work in Plymouth follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Plymouth at a glance
- Town
- Plymouth, Devon
- Postcode districts
- PL1, PL3 and PL4
- Nearby
- Plymstock (2 miles), Saltash (4 miles) and Ivybridge (10 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
PIV for Plymouth homes
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 Plymouth
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,025–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£305 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Plymouth
How do I get a price for a PIV unit in Plymouth?
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.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
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.
What area around Plymouth do you work in?
All of Devon. Near Plymouth that includes Plymstock, Saltash, Ivybridge and Tavistock.
Do you cover Plymouth and nearby?
Yes. We cover Plymouth and nearby places including Plymstock, Saltash, Ivybridge and Tavistock. Send your postcode and we will confirm.
Get a PIV guide price for your Plymouth home online, then confirm it on a free survey.
PIV near Plymouth
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