From £18,892
Rotherham, S60
Green Exteriors Ltd are here to help customers who need an Extension Builder in Rotherham. We offer a competitive rate to complete all your extensi...
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
Rotherham, S65
Relax... you have found a reliable extension builder in Rotherham. CS Construction & Conversions is a friendly and reliable company based in Rother...
From £17,660
Need an Extension Builder in Rotherham? Property Plus has been helping local clients (20 mile radius) with their extension buildering jobs for many...
From £17,596
Trusted and professional extension builder in Rotherham. Experienced in all extension buildering work and keeping within budget and on quote. urmum...
From £17,340
Trusted and professional extension builder in Rotherham. Experienced in all extension buildering work and keeping within budget and on quote. Briti...
From £17,484
BP Builders are here to help customers who need an Extension Builder in Rotherham. We offer a competitive rate to complete all your extension build...
From £17,380
Home Hero is a trusted extension builder serving customers in Rotherham and the surrounding area. Contact us to today to get a competitive quote fo...
From £17,660
Sheffield basedFamily run businessBuilt on recommendationFollow our journey
From £17,540
Pc building services is a trusted extension builder serving customers in Rotherham and the surrounding area. Contact us to today to get a competiti...

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 Rotherham by posting a job with HaMuch and we will send it to extension builders in Rotherham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rotherham | £33 | £257 |
| Underpin A Building near Wickersley | £33 | £257 |
| Underpin A Building near Sheffield | £34 | £280 |
| Underpin A Building near Barnsley | £31 | £242 |
| Underpin A Building near Dronfield | £35 | £288 |
| Underpin A Building near Doncaster | £29 | £238 |
| Underpin A Building near Worksop | £33 | £265 |
| Underpin A Building near Chesterfield | £33 | £257 |
| Underpin A Building near Pontefract | £30 | £228 |
| Underpin A Building near Bassetlaw | £31 | £243 |
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 - £17,662

Two storey extension - £88,244

Build a timber frame extension - £26,162

Build a swimming pool - £81,162

Single storey extension - £58,248

Side return extension - £43,327

Install an RSJ - £2,362

Outbuilding - £10,162

Build a Mansard loft conversion - £52,162

Loft conversion - £35,273

Build a kitchen extension - £42,162

Hip to gable loft conversion - £42,162

Granny annexe - £87,162

Garden office - £10,162

Convert a Garage - £16,162

Garage - £18,662

Build a flat roof extension - £22,162

Build a dormer loft conversion - £42,162

Concrete foundations - £6,412

Convert a bungalow loft - £29,162

Convert a basement - £39,327