From £17,012
N W Doyle & Son is a trusted extension builder serving customers in Newtownards and the surrounding area. Contact us to today to get a competitive ...
From £16,636
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
From £16,868
Relax... you have found a reliable extension builder in Newtownards. SM Plumbing & Heating is a friendly and reliable company based in Newtownards ...
From £16,796
Ballantine building solutions is an established extension buildering business in Newtownards. We come highly recommended and provide competitive qu...
From £16,772
apex pharaoh ltd is a trusted extension builder serving customers in Newtownards and the surrounding area. Contact us to today to get a competitive...
From £16,676
Trusted and professional extension builder in Newtownards. Experienced in all extension buildering work and keeping within budget and on quote. Ext...
From £16,884
Designco Ltd is an established extension buildering business in Newtownards. We come highly recommended and provide competitive quotes for your wor...
From £16,764
Trusted and professional extension builder in Newtownards. Experienced in all extension buildering work and keeping within budget and on quote. DGA...

Underpinning ranges from £16,636 (Mount Oriel Conversions & Extensions based in BT8) to £17,012 (N W Doyle & Son based in BT24), 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 Newtownards by posting a job with HaMuch and we will send it to extension builders in Newtownards.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Portaferry | £22 | £164 |
| Underpin A Building near Ballygowan | £24 | £183 |
| Underpin A Building near Comber | £22 | £160 |
| Underpin A Building near Bangor | £24 | £183 |
| Underpin A Building near Bangor | £24 | £183 |
| Underpin A Building near Saintfield | £23 | £162 |
| Underpin A Building near Ballynahinch | £19 | £189 |
| Underpin A Building near Holywood | £23 | £159 |
| Underpin A Building near Carryduff | £23 | £158 |
| Underpin A Building near Belfast | £23 | £161 |
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 - £16,822

Two storey extension - £86,983

Build a timber frame extension - £25,322

Build a swimming pool - £80,322

Single storey extension - £41,436

Side return extension - £33,870

Install an RSJ - £1,522

Outbuilding - £9,322

Build a Mansard loft conversion - £51,322

Loft conversion - £27,392

Build a kitchen extension - £41,322

Hip to gable loft conversion - £41,322

Granny annexe - £86,322

Garden office - £9,322

Convert a Garage - £15,322

Garage - £17,822

Build a flat roof extension - £21,322

Build a dormer loft conversion - £41,322

Concrete foundations - £5,572

Convert a bungalow loft - £28,322

Convert a basement - £29,870