Chafford Hundred, Essex
Positive input ventilation (PIV) in Chafford Hundred
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Chafford Hundred and RM15, RM17 and RM20.
- From £825 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Chafford Hundred, after checking the house first.
Chafford Hundred is about 119 miles from our base in Great Barr, Birmingham. We book Chafford Hundred visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Chafford Hundred at a glance
- Town
- Chafford Hundred, Essex
- Postcode districts
- RM15, RM17 and RM20
- Nearby
- South Ockendon (1 mile), Grays (2 miles) and Swanscombe (3 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Chafford Hundred
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Chafford Hundred
| 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.
Common reasons people call
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
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). 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 Chafford Hundred
Do you cover Chafford Hundred and nearby?
Yes. We cover Chafford Hundred and nearby places including South Ockendon, Grays, Swanscombe and Tilbury. Send your postcode and we will confirm.
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 is the price of a PIV unit in Chafford Hundred?
Guide prices for Chafford Hundred 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 Chafford Hundred?
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.
Tell us whether your Chafford Hundred home has a loft and we can price a PIV unit before visiting.
PIV near Chafford Hundred
More services in Chafford Hundred
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