Reading, Berkshire
Positive input ventilation (PIV) in Reading
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Reading and RG1, RG4 and RG30.
- From £875 inc VAT per home
- Free survey

If your Reading flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
We cover Reading and the surrounding RG1, RG4 and RG30 postcodes as part of our work across Berkshire. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Reading at a glance
- Town
- Reading, Berkshire
- Postcode districts
- RG1, RG4 and RG30
- Nearby
- Lower Earley (3 miles), Henley-on-Thames (6 miles) and Wokingham (7 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
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 Reading
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Signs it is time to call us
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
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 Reading
How do I get a price for a PIV unit in Reading?
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 Reading do you work in?
All of Berkshire. Near Reading that includes Lower Earley, Henley-on-Thames, Wokingham and Crowthorne.
Do you cover Reading and nearby?
Yes. We cover Reading and nearby places including Lower Earley, Henley-on-Thames, Wokingham and Crowthorne. Send your postcode and we will confirm.
Most Reading PIV jobs are done in half a day, so ask about the next available date.
PIV near Reading
More services in Reading
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.