Sunderland, Tyne and Wear
Positive input ventilation (PIV) in Sunderland
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sunderland and SR1, SR2 and SR9.
- From £725 inc VAT per home
- Free survey

Condensation in Sunderland homes usually has one of two answers: better extract fans, or PIV as well.
Sunderland is about 164 miles from our base in Great Barr, Birmingham. We book Sunderland 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 Sunderland at a glance
- Town
- Sunderland, Tyne and Wear
- Postcode districts
- SR1, SR2 and SR9
- Nearby
- Ryhope (2 miles), The Boldons (4 miles) and Seaham (5 miles)
- Price region
- North East
- Survey
- Free survey (UK mainland)
How we approach PIV in Sunderland
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 Sunderland
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £725–£1,275 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £925–£1,550 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £135–£270 inc VAT |
Guide prices using North East 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
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
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 Sunderland
What area around Sunderland do you work in?
All of Tyne and Wear. Near Sunderland that includes Ryhope, The Boldons, Seaham and Washington.
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.
Do you cover Sunderland and nearby?
Yes. We cover Sunderland and nearby places including Ryhope, The Boldons, Seaham and Washington. Send your postcode and we will confirm.
What is the price of a PIV unit in Sunderland?
Guide prices for Sunderland use North East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £725 to £1,275 inc VAT per home. We confirm a fixed price in writing before any work starts.
We will check the existing fans in your Sunderland home at the same visit, because PIV works best with them working.
PIV near Sunderland
More services in Sunderland
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