Holywood, County Down
Positive input ventilation (PIV) in Holywood
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Holywood and BT3, BT4 and BT18.
- From £725 inc VAT per home
- By arrangement
We fit loft and wall-mounted PIV units across Holywood, after checking the house first.
Customers in Holywood can get a guide price online in a couple of minutes. It uses Northern Ireland rates, which is what we would charge for the same job anywhere in County Down. Because of the travel involved, visits here are by arrangement and travel is quoted before booking.
PIV in Holywood at a glance
- Town
- Holywood, County Down
- Postcode districts
- BT3, BT4 and BT18
- Nearby
- Dundonald (3 miles), Newtownabbey (4 miles) and Belfast (5 miles)
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
PIV for Holywood homes
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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Holywood
| 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 |
These ranges use our Northern Ireland rates. Prices include VAT at 20%. You get a fixed written price before any work is booked. Travel is quoted separately for this area.
Common reasons people call
- 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 Northern Ireland
In Northern Ireland, ventilation is covered by the Building Regulations (Northern Ireland) and Technical Booklet K. Extract rates follow the Northern Ireland guidance and are measured at handover.
Questions from Holywood
How do I get a price for a PIV unit in Holywood?
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.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What area around Holywood do you work in?
All of County Down. Near Holywood that includes Dundonald, Newtownabbey, Belfast and Castlereagh.
Do you cover Holywood and nearby?
Yes. We cover Holywood and nearby places including Dundonald, Newtownabbey, Belfast and Castlereagh. Send your postcode and we will confirm.
We will check the existing fans in your Holywood home at the same visit, because PIV works best with them working.
PIV near Holywood
More services in Holywood
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.