The 10 builders from Google's results for Belfast, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
Northern Ireland has separate planning and building control.
on GoogleBelfast
ACD Joinery & Building Improvements delivers carpentry and general building services across Belfast. The firm manages home improvement, property maintenance, and structural work for domestic and commercial clients.
07813 097788 18 Wynard Park, Belfast BT5 6NS
on GoogleEdgewater Rd, Belfast
Praxis Construction provides building services across Belfast for projects of various sizes. The company carries out property work, kitchen installations, and bathroom fitting, supported by an interactive showroom.
07835 014241 Carnmoney House, Edgewater Rd, Belfast BT3 9JQ
on GoogleBelfast
Sanlon Joinery Construction undertakes residential and commercial building work across Belfast, Lisburn, Bangor, and Holywood. Its tradespeople handle extension projects, renovations, groundworks, plumbing, electrical installations, and exterior landscaping.
07851 093027 13 Bromley St, Belfast BT13 3GL
on GoogleBelfast
New Town Building provides general building and joinery services to clients in Belfast.
07599 313485 1 Cedarhurst Rise, Belfast BT8 7RJ
on GoogleBelfast
Madden Contracts constructs home extensions for property owners throughout Belfast. The firm provides structural building services to help local clients expand their available living space.
028 9081 7200 55 - 59 Adelaide St, Belfast BT2 8FE
on GoogleBelfast
North Building Contractors carries out full home renovations, property extensions, and outdoor improvements across East Belfast, Greater Belfast, and North Down. The firm also fits kitchens and bathrooms.
07555 584700 81 Rosetta Rd, Belfast BT6 0LS
on GoogleDunmurry, Belfast
PK Builders delivers home improvement and alteration services for residential properties in Belfast and surrounding areas. Its work covers house extensions, structural conversions, conservatories, and general brickwork.
07874 276722 Mount Eagles, Dunmurry, Belfast BT17 0WX
on GoogleBelfast
Belfast Renovations provides joinery, plastering, loft conversions, and general building services in Belfast.
on GoogleBelfast
East Side Builders delivers domestic construction work across Belfast, Bangor, Newtownards, and North Down. The business handles property extensions, structural alterations, loft conversions, and home renovations.
on GoogleBelfast
SS Builders provides construction, renovation, and property maintenance services for commercial and private clients throughout Belfast and Northern Ireland. The firm manages projects ranging from new builds and property extensions to structural conversions.
07977 900535 69 Dunlambert Park, Belfast BT15 3NL
In Belfast, small structural job typically costs £1,300 – £4,400. Labour in County Antrim runs 12% below the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "builders belfast". They are ranked on Google rating, online presence and other factors.
The figures above are Belfast ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre rates for light, standard and full renovations, prices job by job, rates by region, and the VAT, fees and contingency that sit on top of the build.
2026 prices for single and double garage conversions by garage type and room, what a quote should include, the fees and VAT around the build, and the rules in each UK nation.
Which jobs are notifiable, how the application routes work, what building control inspects, and what a completion certificate is worth when you come to sell.
For anything over about £10,000, yes. The JCT Home Owner contract is short, plain English and free to buy. It fixes the payment schedule and the process if things go wrong, which is exactly what an informal arrangement does not.
Materials up front is reasonable. A large percentage of the total is not. Stage payments against completed work are the norm, and a firm insisting on 50% before starting is a warning sign.