Seaham, County Durham
Positive input ventilation (PIV) in Seaham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Seaham and SR2, SR3 and SR7.
- From £725 inc VAT per home
- Free survey

If your Seaham flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Customers in Seaham can get a guide price online in a couple of minutes. It uses North East rates, which is what we would charge for the same job anywhere in County Durham. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Seaham at a glance
- Town
- Seaham, County Durham
- Postcode districts
- SR2, SR3 and SR7
- Nearby
- Ryhope (2 miles), Hetton-le-Hole (4 miles) and Houghton-le-Spring (5 miles)
- Price region
- North East
- Survey
- Free survey (UK mainland)
PIV for Seaham homes
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Seaham
| 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.
Signs it is time to call us
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Seaham
What area around Seaham do you work in?
All of County Durham. Near Seaham that includes Ryhope, Hetton-le-Hole, Houghton-le-Spring and Sunderland.
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.
Do you cover Seaham and nearby?
Yes. We cover Seaham and nearby places including Ryhope, Hetton-le-Hole, Houghton-le-Spring and Sunderland. Send your postcode and we will confirm.
What is the price of a PIV unit in Seaham?
Guide prices for Seaham 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.
Tell us whether your Seaham home has a loft and we can price a PIV unit before visiting.
PIV near Seaham
More services in Seaham
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.