Tring, Hertfordshire
Positive input ventilation (PIV) in Tring
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Tring and HP4, HP22 and HP23.
- From £825 inc VAT per home
- Free survey
PIV is often a good fix for Tring homes with condensation on every window.
For positive input ventilation (PIV) in Tring, 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 Tring at a glance
- Town
- Tring, Hertfordshire
- Postcode districts
- HP4, HP22 and HP23
- Nearby
- Berkhamsted (5 miles), Aylesbury (7 miles) and Chesham (7 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Tring
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.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Tring
| 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 |
Guide prices using East of England 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
- 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 Tring
Is the survey free in Tring?
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.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
How do I get a price for a PIV unit in Tring?
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 Tring do you work in?
All of Hertfordshire. Near Tring that includes Berkhamsted, Aylesbury, Chesham and Leighton Buzzard.
Get a PIV guide price for your Tring home online, then confirm it on a free survey.
PIV near Tring
More services in Tring
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.