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From £16,996
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,996 (Ballygrange Contracts based in BT34) to £16,996 (Ballygrange Contracts based in BT34), 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 Newcastle by posting a job with HaMuch and we will send it to extension builders in Newcastle.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Kilkeel | £28 | £182 |
| Underpin A Building near Ballynahinch | £19 | £189 |
| Underpin A Building near Banbridge | £29 | £205 |
| Underpin A Building near Saintfield | £23 | £162 |
| Underpin A Building near Portaferry | £22 | £164 |
| Underpin A Building near Hillsborough and Culcavy | £25 | £170 |
| Underpin A Building near Lisburn | £24 | £164 |
| Underpin A Building near Carryduff | £23 | £158 |
| Underpin A Building near Waringstown | £23 | £167 |
| Underpin A Building near Maghaberry | £31 | £205 |
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 - £16,996

Two storey extension - £87,244

Build a timber frame extension - £25,496

Build a swimming pool - £80,496

Single storey extension - £44,920

Side return extension - £35,830

Install an RSJ - £1,696

Outbuilding - £9,496

Build a Mansard loft conversion - £51,496

Loft conversion - £29,025

Build a kitchen extension - £41,496

Hip to gable loft conversion - £41,496

Granny annexe - £86,496

Garden office - £9,496

Convert a Garage - £15,496

Garage - £17,996

Build a flat roof extension - £21,496

Build a dormer loft conversion - £41,496

Concrete foundations - £5,746

Convert a bungalow loft - £28,496

Convert a basement - £31,830