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 £5,586
Trusted and professional extension builder in BT17. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
From £5,634
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...

Concrete foundations range from the £5,426 (Extended living by Gilbert-Ash based in BT12) to £5,650 (T.I Building based in BT28) 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 - £16,824

Two storey extension - £86,986

Build a timber frame extension - £25,324

Build a swimming pool - £80,324

Single storey extension - £41,480

Side return extension - £33,895

Install an RSJ - £1,524

Outbuilding - £9,324

Build a Mansard loft conversion - £51,324

Loft conversion - £27,413

Build a kitchen extension - £41,324

Hip to gable loft conversion - £41,324

Granny annexe - £86,324

Garden office - £9,324

Convert a Garage - £15,324

Garage - £17,824

Build a flat roof extension - £21,324

Build a dormer loft conversion - £41,324

Concrete foundations - £5,574

Convert a bungalow loft - £28,324

Convert a basement - £29,895