From £5,586
Trusted and professional extension builder in BT17. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
From £5,586
Need an Extension Builder in BT17? H.M.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £5,634
Relax... you have found a reliable extension builder in BT17. Finch Construction NI is a friendly and reliable company based in BT17 who consider n...
From £5,426
Trusted and professional extension builder in BT17. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...
From £5,650
T.I Building is a trusted extension builder serving customers in BT17 and the surrounding area. Contact us to today to get a competitive quote for ...
From £5,530
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £5,618
Relax... you have found a reliable extension builder in BT17. SM Plumbing & Heating is a friendly and reliable company based in BT17 who consider n...
From £5,458
Need an Extension Builder in BT17? MIRKOW has been helping local clients (20 mile radius) with their extension buildering jobs for many years. Get ...
From £5,602
Need to find an Extension Builder near you for all your extension buildering work?
Firenstack Solutions provides a local, trusted extension...

Concrete foundations range from the £5,426 (Extended living by Gilbert-Ash based in BT12) to £5,738 (AK Building Services based in BT8) in BT17.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in BT17 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
"Concrete foundation" - BELFAST, job posted 02/11/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Concrete Foundations near Lisburn | £24 | £164 |
| Concrete Foundations near Belfast | £23 | £161 |
| Concrete Foundations near Carryduff | £23 | £158 |
| Concrete Foundations near Hillsborough and Culcavy | £25 | £170 |
| Concrete Foundations near Maghaberry | £31 | £205 |
| Concrete Foundations near Crumlin | £26 | £194 |
| Concrete Foundations near Saintfield | £23 | £162 |
| Concrete Foundations near Holywood | £23 | £159 |
| Concrete Foundations near Comber | £22 | £160 |
| Concrete Foundations near Ballynahinch | £19 | £189 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £16,833

Two storey extension - £86,999

Build a timber frame extension - £25,333

Build a swimming pool - £80,333

Single storey extension - £41,656

Side return extension - £33,994

Install an RSJ - £1,533

Outbuilding - £9,333

Build a Mansard loft conversion - £51,333

Loft conversion - £27,495

Build a kitchen extension - £41,333

Hip to gable loft conversion - £41,333

Granny annexe - £86,333

Garden office - £9,333

Convert a Garage - £15,333

Garage - £17,833

Build a flat roof extension - £21,333

Build a dormer loft conversion - £41,333

Concrete foundations - £5,583

Convert a bungalow loft - £28,333

Convert a basement - £29,994