House Extensions in Belfast
We design and build single-storey, double-storey, wrap-around and rear extensions across Belfast and Northern Ireland — plus loft and garage conversions. From planning drawings through groundworks, structure, roofing and finishing, one team handles the whole project so you get a single point of contact and a single bill.
Every detail, written into the quote.
Most rear extensions in Belfast: £45,000 – £95,000 depending on size, spec and groundworks.
- 01Full design-and-build extensions
- 02Loft conversions with dormers and rooflights
- 03Garage conversions into living space
- 04Project-managed end to end
One team. One bill. No subcontractor chaos.
Extensions & Conversions in Belfast and across Northern Ireland — kept on schedule because every trade is in-house.
- 01
All trades in-house
Plumbing, electrics, joinery, plastering and tiling — no waiting on someone else's diary.
- 02
Written quote in 24h
Itemised. Fixed price where possible. Day-rates only where it genuinely makes sense.
- 03
Fully insured, local
Public & employers' liability cover. Belfast references you can ring before you book.
Open-plan rear extension on a Victorian terrace
4.8m single-storey rear extension, vaulted ceiling, bifold doors, full kitchen refit
12 weeks on site
Stranmillis, Belfast
We got a written quote on the Wednesday and a start date for the next month. Finished on the day they said.
Real extensions & conversions jobs in Belfast & NI.
Honest answers, before you ask.
Ready to start your extensions & conversions project?
Free written quote within 24 hours. No hard sell — just an honest scope, a fair price, and a date we can keep.