Dagenham, Greater London
Positive input ventilation (PIV) in Dagenham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Dagenham and RM8, RM9 and RM10.
- From £950 inc VAT per home
- Free survey
PIV is often a good fix for Dagenham homes with condensation on every window.
For positive input ventilation (PIV) in Dagenham, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Dagenham at a glance
- Town
- Dagenham, Greater London
- Postcode districts
- RM8, RM9 and RM10
- Nearby
- Elm Park (1 mile), Becontree (2 miles) and Romford (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Dagenham
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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Dagenham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,200–£2,025 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £175–£355 inc VAT |
These ranges use our London 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
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 Dagenham
Is the survey free in Dagenham?
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 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.
How do I get a price for a PIV unit in Dagenham?
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.
What area around Dagenham do you work in?
All of Greater London. Near Dagenham that includes Elm Park, Becontree, Romford and Hornchurch.
Tell us whether your Dagenham home has a loft and we can price a PIV unit before visiting.
PIV near Dagenham
More services in Dagenham
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.