Castlereagh, County Down
Positive input ventilation (PIV) in Castlereagh
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Castlereagh and BT5, BT6 and BT7.
- From £725 inc VAT per home
- By arrangement
Condensation in Castlereagh homes usually has one of two answers: better extract fans, or PIV as well.
Castlereagh is about 215 miles from our base in Great Barr, Birmingham. We book Castlereagh visits by appointment and confirm the date in writing. Work here is by arrangement, with travel quoted in writing first.
PIV in Castlereagh at a glance
- Town
- Castlereagh, County Down
- Postcode districts
- BT5, BT6 and BT7
- Nearby
- Belfast (2 miles), Dundonald (4 miles) and Holywood (5 miles)
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
How we approach PIV in Castlereagh
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Castlereagh
| 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.
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 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 Castlereagh
How do I get a price for a PIV unit in Castlereagh?
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.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
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.
What area around Castlereagh do you work in?
All of County Down. Near Castlereagh that includes Belfast, Dundonald, Holywood and Newtownabbey.
Do you cover Castlereagh and nearby?
Yes. We cover Castlereagh and nearby places including Belfast, Dundonald, Holywood and Newtownabbey. Send your postcode and we will confirm.
We will check the existing fans in your Castlereagh home at the same visit, because PIV works best with them working.
PIV near Castlereagh
More services in Castlereagh
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.