Carlisle, Cumbria
Positive input ventilation (PIV) in Carlisle
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Carlisle and CA1, CA2 and CA3.
- From £750 inc VAT per home
- Free survey
For a typical Carlisle semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Customers in Carlisle can get a guide price online in a couple of minutes. It uses North West rates, which is what we would charge for the same job anywhere in Cumbria. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Carlisle at a glance
- Town
- Carlisle, Cumbria
- Postcode districts
- CA1, CA2 and CA3
- Nearby
- Penrith (17 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
PIV for Carlisle homes
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Carlisle
| 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 Carlisle
How do I get a price for a PIV unit in Carlisle?
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 long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
What area around Carlisle do you work in?
All of Cumbria. Near Carlisle that includes Penrith.
Do you cover Carlisle and nearby?
Yes. We cover Carlisle and nearby places including Penrith. Send your postcode and we will confirm.
Book a free Carlisle survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Carlisle
More services in Carlisle
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.