From £17,132
Taggart Homes - The Designer Builder are here to help customers who need an Extension Builder in Cityside. We offer a competitive rate to complete ...
From £17,284
Relax... you have found a reliable extension builder in Cityside. Tyrone Turbos is a friendly and reliable company based in Cityside who consider n...
From £17,196
Relax... you have found a reliable extension builder in Cityside. JAMSE CONSTRUCTION LTD is a friendly and reliable company based in Cityside who c...
From £17,020
Luxury Garden Studios is an established and experienced local extension builder in Cityside. Please contact us for a free, no obligation quote and ...

Underpinning ranges from £17,020 (Luxury Garden Studios based in BT47) to £17,284 (Tyrone Turbos based in BT82), 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 Cityside by posting a job with HaMuch and we will send it to extension builders in Cityside.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Strathfoyle | £20 | £166 |
| Underpin A Building near Newbuildings | £20 | £166 |
| Underpin A Building near Londonderry | £20 | £166 |
| Underpin A Building near Strabane | £21 | £173 |
| Underpin A Building near Dungiven | £21 | £179 |
| Underpin A Building near Coleraine | £21 | £181 |
| Underpin A Building near Magherafelt | £25 | £200 |
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 - £17,158

Two storey extension - £87,487

Build a timber frame extension - £25,658

Build a swimming pool - £80,658

Single storey extension - £48,160

Side return extension - £37,653

Install an RSJ - £1,858

Outbuilding - £9,658

Build a Mansard loft conversion - £51,658

Loft conversion - £30,544

Build a kitchen extension - £41,658

Hip to gable loft conversion - £41,658

Granny annexe - £86,658

Garden office - £9,658

Convert a Garage - £15,658

Garage - £18,158

Build a flat roof extension - £21,658

Build a dormer loft conversion - £41,658

Concrete foundations - £5,908

Convert a bungalow loft - £28,658

Convert a basement - £33,653