Croxley Green, Hertfordshire
Positive input ventilation (PIV) in Croxley Green
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Croxley Green and HA6, WD3 and WD18.
- From £825 inc VAT per home
- Free survey
PIV can suit Croxley Green houses and flats because it treats the whole home from one quiet unit.
Whether the property is in the middle of Croxley Green or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in Croxley Green at a glance
- Town
- Croxley Green, Hertfordshire
- Postcode districts
- HA6, WD3 and WD18
- Nearby
- Batchworth (1 mile), Rickmansworth (1 mile) and Northwood (2 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
PIV for Croxley Green homes
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Croxley Green
| 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 |
These ranges use our East of England 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 Croxley Green
How do I get a price for a PIV unit in Croxley Green?
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.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
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.
What area around Croxley Green do you work in?
All of Hertfordshire. Near Croxley Green that includes Batchworth, Rickmansworth, Northwood and West Watford.
Do you cover Croxley Green and nearby?
Yes. We cover Croxley Green and nearby places including Batchworth, Rickmansworth, Northwood and West Watford. Send your postcode and we will confirm.
Get a PIV guide price for your Croxley Green home online, then confirm it on a free survey.
PIV near Croxley Green
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