Relax... you have found a reliable extension builder in BT13. SM Plumbing & Heating is a friendly and reliable company based in BT13 who consider n...
From £16,836
Trusted and professional extension builder in BT13. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
From £16,676
Trusted and professional extension builder in BT13. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...
From £16,884
Designco Ltd is an established extension buildering business in BT13. We come highly recommended and provide competitive quotes for your work.
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Underpinning ranges from £16,676 (Extended living by Gilbert-Ash based in BT12) to £16,884 (Designco Ltd based in BT36), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in BT13 by posting a job with HaMuch and we will send it to extension builders in BT13.
"Underpin a building" - BT11, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Belfast | £23 | £161 |
| Underpin A Building near Carryduff | £23 | £158 |
| Underpin A Building near Holywood | £23 | £159 |
| Underpin A Building near Greenisland | £23 | £153 |
| Underpin A Building near Lisburn | £24 | £164 |
| Underpin A Building near Comber | £22 | £160 |
| Underpin A Building near Crumlin | £26 | £194 |
| Underpin A Building near Ballyclare | £20 | £124 |
| Underpin A Building near Ballygowan | £24 | £183 |
| Underpin A Building near Hillsborough and Culcavy | £25 | £170 |
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 - £16,816

Two storey extension - £86,974

Build a timber frame extension - £25,316

Build a swimming pool - £80,316

Single storey extension - £41,320

Side return extension - £33,805

Install an RSJ - £1,516

Outbuilding - £9,316

Build a Mansard loft conversion - £51,316

Loft conversion - £27,338

Build a kitchen extension - £41,316

Hip to gable loft conversion - £41,316

Granny annexe - £86,316

Garden office - £9,316

Convert a Garage - £15,316

Garage - £17,816

Build a flat roof extension - £21,316

Build a dormer loft conversion - £41,316

Concrete foundations - £5,566

Convert a bungalow loft - £28,316

Convert a basement - £29,805