From £17,340
Trusted and professional extension builder in S65. Experienced in all extension buildering work and keeping within budget and on quote. Britishbuil...
From £17,604
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,468
Relax... you have found a reliable extension builder in S65. CS Construction & Conversions is a friendly and reliable company based in S65 who cons...
From £18,892
Green Exteriors Ltd are here to help customers who need an Extension Builder in S65. We offer a competitive rate to complete all your extension bui...
From £17,596
Trusted and professional extension builder in S65. Experienced in all extension buildering work and keeping within budget and on quote. urmum.co ha...
From £17,660
Need an Extension Builder in S65? Property Plus has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £17,484
BP Builders are here to help customers who need an Extension Builder in S65. We offer a competitive rate to complete all your extension buildering ...
From £17,356
Relax... you have found a reliable extension builder in S65. Tep's Building Services is a friendly and reliable company based in S65 who consider n...
From £17,380
Home Hero is a trusted extension builder serving customers in S65 and the surrounding area. Contact us to today to get a competitive quote for exte...
From £17,660
Sheffield basedFamily run businessBuilt on recommendationFollow our journey

Underpinning ranges from £17,340 (Britishbuildogs based in S65) to £18,892 (Green Exteriors Ltd based in S60), 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 S65 by posting a job with HaMuch and we will send it to extension builders in S65.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rotherham | £29 | £226 |
| Underpin A Building near Wickersley | £29 | £224 |
| Underpin A Building near Sheffield | £30 | £246 |
| Underpin A Building near Doncaster | £26 | £208 |
| Underpin A Building near Barnsley | £27 | £210 |
| Underpin A Building near Dronfield | £31 | £253 |
| Underpin A Building near Worksop | £29 | £233 |
| Underpin A Building near Chesterfield | £29 | £225 |
| Underpin A Building near Bassetlaw | £28 | £214 |
| Underpin A Building near Pontefract | £26 | £202 |
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 - £17,644

Two storey extension - £88,216

Build a timber frame extension - £26,144

Build a swimming pool - £81,144

Single storey extension - £57,880

Side return extension - £43,120

Install an RSJ - £2,344

Outbuilding - £10,144

Build a Mansard loft conversion - £52,144

Loft conversion - £35,100

Build a kitchen extension - £42,144

Hip to gable loft conversion - £42,144

Granny annexe - £87,144

Garden office - £10,144

Convert a Garage - £16,144

Garage - £18,644

Build a flat roof extension - £22,144

Build a dormer loft conversion - £42,144

Concrete foundations - £6,394

Convert a bungalow loft - £29,144

Convert a basement - £39,120