Yarm, North Yorkshire
Positive input ventilation (PIV) in Yarm
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Yarm and TS15, TS16 and TS17.
- From £750 inc VAT per home
- Free survey
For a typical Yarm semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Yarm is about 137 miles from our base in Great Barr, Birmingham. We book Yarm visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Yarm at a glance
- Town
- Yarm, North Yorkshire
- Postcode districts
- TS15, TS16 and TS17
- Nearby
- Thornaby-on-Tees (3 miles), Stockton-on-Tees (5 miles) and Billingham (6 miles)
- Price region
- Yorkshire
- Survey
- Free survey (UK mainland)
What the work involves
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 Yarm
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,300 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £925–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £135–£275 inc VAT |
These ranges use our Yorkshire rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- 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. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Yarm
What is the price of a PIV unit in Yarm?
Guide prices for Yarm use Yorkshire rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £750 to £1,300 inc VAT per home. We confirm a fixed price in writing before any work starts.
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.
Is the survey free in Yarm?
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 Yarm?
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.
Book a free Yarm survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Yarm
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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.