From £17,804
We are a young vibrant company specialised in plastering Roughcasting and roofing (wet trades) we have a fresh approach and a mission to offer some...
From £17,500
SKED CONSTRUCTION LTD are here to help customers who need an Extension Builder in Biggar. We offer a competitive rate to complete all your extensio...
From £17,196
As London based construction company, we are happy to work on private or commercial projects for individuals, managing companies, main contractors,...
From £17,140
Trusted and professional extension builder in Biggar. Experienced in all extension buildering work and keeping within budget and on quote. Clyde Wi...
From £17,276
BURNSIDE DESIGN & BUILD LTD is a trusted extension builder serving customers in Biggar and the surrounding area. Contact us to today to get a compe...
From £17,788
Relax... you have found a reliable extension builder in Biggar. Kirkfields Contracts is a friendly and reliable company based in Biggar who conside...
From £17,700
Need an Extension Builder in Biggar? Mackenzie Contracts has been helping local clients (20 mile radius) with their extension buildering jobs for m...

Underpinning ranges from £17,140 (Clyde Windows And Construction Limited based in ML9) to £17,804 (Premier Roughcast ,Coatings Specialists based in ML11), 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 Biggar by posting a job with HaMuch and we will send it to extension builders in Biggar.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near South Lanarkshire | £27 | £205 |
| Underpin A Building near Larkhall | £28 | £211 |
| Underpin A Building near Wishaw | £26 | £204 |
| Underpin A Building near Motherwell | £27 | £199 |
| Underpin A Building near Livingston | £29 | £218 |
| Underpin A Building near Bathgate | £25 | £191 |
| Underpin A Building near Penicuik | £31 | £232 |
| Underpin A Building near West Lothian | £28 | £209 |
| Underpin A Building near Bellshill | £27 | £205 |
| Underpin A Building near North Lanarkshire | £27 | £208 |
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 - £17,486

Two storey extension - £87,979

Build a timber frame extension - £25,986

Build a swimming pool - £80,986

Single storey extension - £54,726

Side return extension - £41,346

Install an RSJ - £2,186

Outbuilding - £9,986

Build a Mansard loft conversion - £51,986

Loft conversion - £33,621

Build a kitchen extension - £41,986

Hip to gable loft conversion - £41,986

Granny annexe - £86,986

Garden office - £9,986

Convert a Garage - £15,986

Garage - £18,486

Build a flat roof extension - £21,986

Build a dormer loft conversion - £41,986

Concrete foundations - £6,236

Convert a bungalow loft - £28,986

Convert a basement - £37,346