Bowthorpe, Norfolk
Positive input ventilation (PIV) in Bowthorpe
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bowthorpe and NR4, NR5 and NR8.
- From £825 inc VAT per home
- Free survey
Condensation in Bowthorpe homes usually has one of two answers: better extract fans, or PIV as well.
We cover Bowthorpe and the surrounding NR4, NR5 and NR8 postcodes as part of our work across Norfolk. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Bowthorpe at a glance
- Town
- Bowthorpe, Norfolk
- Postcode districts
- NR4, NR5 and NR8
- Nearby
- Norwich (3 miles), Attleborough (12 miles) and East Dereham (12 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Bowthorpe
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.
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 Bowthorpe
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,475 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,050–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£310 inc VAT |
East of England 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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Bowthorpe
How do I get a price for a PIV unit in Bowthorpe?
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.
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 area around Bowthorpe do you work in?
All of Norfolk. Near Bowthorpe that includes Norwich, Attleborough, East Dereham and North Walsham.
Do you cover Bowthorpe and nearby?
Yes. We cover Bowthorpe and nearby places including Norwich, Attleborough, East Dereham and North Walsham. Send your postcode and we will confirm.
Book a free Bowthorpe survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Bowthorpe
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.