Sale, Greater Manchester
Positive input ventilation (PIV) in Sale
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sale and M21, M32 and M33.
- From £750 inc VAT per home
- Free survey

Condensation in Sale homes usually has one of two answers: better extract fans, or PIV as well.
Sale is about 63 miles from our base in Great Barr, Birmingham. We book Sale 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 Sale at a glance
- Town
- Sale, Greater Manchester
- Postcode districts
- M21, M32 and M33
- Nearby
- Stretford (2 miles), Timperley (2 miles) and Urmston (2 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
What the work involves
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Sale
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
Guide prices using North West rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 Sale
How do I get a price for a PIV unit in Sale?
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.
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.
What area around Sale do you work in?
All of Greater Manchester. Near Sale that includes Stretford, Timperley, Urmston and Old Trafford.
Do you cover Sale and nearby?
Yes. We cover Sale and nearby places including Stretford, Timperley, Urmston and Old Trafford. Send your postcode and we will confirm.
Book a free Sale survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Sale
More services in Sale
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.