Southport, Merseyside
Positive input ventilation (PIV) in Southport
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Southport and L22, L30, L37 and L38.
- From £750 inc VAT per home
- Free survey
For a typical Southport semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Southport is about 88 miles from our base in Great Barr, Birmingham. We book Southport 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 Southport at a glance
- Town
- Southport, Merseyside
- Postcode districts
- L22, L30, L37, L38 and PR8
- Nearby
- Formby (6 miles), Lytham St Annes (7 miles) and Ormskirk (8 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
What the work involves
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Southport
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
Guide prices using North West rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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
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 Southport
How do I get a price for a PIV unit in Southport?
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.
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.
What area around Southport do you work in?
All of Merseyside. Near Southport that includes Formby, Lytham St Annes, Ormskirk and Maghull.
Do you cover Southport and nearby?
Yes. We cover Southport and nearby places including Formby, Lytham St Annes, Ormskirk and Maghull. Send your postcode and we will confirm.
Most Southport PIV jobs are done in half a day, so ask about the next available date.
PIV near Southport
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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.