Brentwood, Essex
Positive input ventilation (PIV) in Brentwood
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Brentwood and CM13, CM14 and CM15.
- From £825 inc VAT per home
- Free survey
If your Brentwood flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Brentwood is about 114 miles from our base in Great Barr, Birmingham. We book Brentwood 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 Brentwood at a glance
- Town
- Brentwood, Essex
- Postcode districts
- CM13, CM14 and CM15
- Nearby
- Harold Wood (4 miles), Emerson Park (4 miles) and Billericay (5 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Brentwood
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.
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 Brentwood
| 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.
Signs it is time to call us
- 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 Brentwood
What is the price of a PIV unit in Brentwood?
Guide prices for Brentwood 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.
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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
Is the survey free in Brentwood?
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.
How do I get a price for a PIV unit in Brentwood?
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.
We will check the existing fans in your Brentwood home at the same visit, because PIV works best with them working.
PIV near Brentwood
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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.