From £17,284
JP&S Construction Ltd is an established extension buildering business in Dungannon. We come highly recommended and provide competitive quotes for y...
From £17,516
Dungannon, BT70
Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...
From £16,788
We offer a wide range of services completed to a high standard with fully trained personnel
From £17,036
Experienced extension builder ready to quote for your work. Terry Design is the best extension builder in Dungannon. No obligation free quotes and ...
From £17,516
Seamus Mcmullan building and joinery is an established extension buildering business in Dungannon. We come highly recommended and provide competiti...
From £17,404
FJS CONTRACTS LTD are here to help customers who need an Extension Builder in Dungannon. We offer a competitive rate to complete all your extension...
From £16,796
Been in business as 18 years alway put clients first and never had any combacks

Underpinning ranges from £16,788 (M & R McElhatton Joinery based in BT76) to £17,516 (GMC Construction based in BT70), 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 Dungannon by posting a job with HaMuch and we will send it to extension builders in Dungannon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Dungannon | £30 | £238 |
| Underpin A Building near Coalisland | £27 | £223 |
| Underpin A Building near Craigavon | £23 | £181 |
| Underpin A Building near Magherafelt | £30 | £238 |
| Underpin A Building near Waringstown | £23 | £167 |
| Underpin A Building near Maghaberry | £31 | £205 |
| Underpin A Building near Dungiven | £22 | £190 |
| Underpin A Building near Banbridge | £29 | £205 |
| Underpin A Building near Crumlin | £26 | £194 |
| Underpin A Building near Strabane | £27 | £223 |
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 - £17,191

Two storey extension - £87,537

Build a timber frame extension - £25,691

Build a swimming pool - £80,691

Single storey extension - £48,829

Side return extension - £38,029

Install an RSJ - £1,891

Outbuilding - £9,691

Build a Mansard loft conversion - £51,691

Loft conversion - £30,857

Build a kitchen extension - £41,691

Hip to gable loft conversion - £41,691

Granny annexe - £86,691

Garden office - £9,691

Convert a Garage - £15,691

Garage - £18,191

Build a flat roof extension - £21,691

Build a dormer loft conversion - £41,691

Concrete foundations - £5,941

Convert a bungalow loft - £28,691

Convert a basement - £34,029