Rayleigh, Essex
Positive input ventilation (PIV) in Rayleigh
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Rayleigh and SS5, SS6 and SS7.
- From £825 inc VAT per home
- Free survey

If your Rayleigh flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Rayleigh is about 126 miles from our base in Great Barr, Birmingham. We book Rayleigh visits by appointment and confirm the date in writing. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Rayleigh at a glance
- Town
- Rayleigh, Essex
- Postcode districts
- SS5, SS6 and SS7
- Nearby
- Hadleigh (2 miles), South Benfleet (3 miles) and Wickford (4 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
PIV for Rayleigh 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.
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 Rayleigh
| 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.
Signs it is time to call us
- 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
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 Rayleigh
Do you cover Rayleigh and nearby?
Yes. We cover Rayleigh and nearby places including Hadleigh, South Benfleet, Wickford and Pitsea. Send your postcode and we will confirm.
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 is the price of a PIV unit in Rayleigh?
Guide prices for Rayleigh use East of England rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,475 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Rayleigh?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Most Rayleigh PIV jobs are done in half a day, so ask about the next available date.
PIV near Rayleigh
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