Oswestry, Shropshire
Positive input ventilation (PIV) in Oswestry
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Oswestry and SY10 and SY11.
- From £795 inc VAT per home
- Free survey
Condensation in Oswestry homes usually has one of two answers: better extract fans, or PIV as well.
Whether the property is in the middle of Oswestry or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in Oswestry at a glance
- Town
- Oswestry, Shropshire
- Postcode districts
- SY10 and SY11
- Nearby
- Shrewsbury (16 miles), Whitchurch (17 miles) and Chester (24 miles)
- Price region
- West Midlands
- 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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Oswestry
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £795–£1,395 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £995–£1,695 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £145–£295 inc VAT |
These ranges use our West Midlands 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
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 Oswestry
Is the survey free in Oswestry?
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 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.
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 do I get a price for a PIV unit in Oswestry?
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 Oswestry do you work in?
All of Shropshire. Near Oswestry that includes Shrewsbury, Whitchurch, Chester and Market Drayton.
We will check the existing fans in your Oswestry home at the same visit, because PIV works best with them working.
PIV near Oswestry
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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.