From £17,508
We are a family run business with 20 years experience.
We take great care and attention to the work we carry out and pride ourselves on ...
From £17,332
Need an Extension Builder in Darfield? Watertight Roofing Leeds has been helping local clients (20 mile radius) with their extension buildering job...
From £17,436
Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...
From £17,612
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,844
Trusted and professional extension builder in Darfield. Experienced in all extension buildering work and keeping within budget and on quote. AMB Jo...
From £17,588
Hallamshire Paving is an established and experienced local extension builder in Darfield. Please contact us for a free, no obligation quote and com...
From £17,484
BP Builders are here to help customers who need an Extension Builder in Darfield. We offer a competitive rate to complete all your extension builde...
From £17,364
Trusted and professional extension builder in Darfield. Experienced in all extension buildering work and keeping within budget and on quote. MGG CO...
From £17,308
Trusted and professional extension builder in Darfield. Experienced in all extension buildering work and keeping within budget and on quote. NE BUI...

Underpinning ranges from £16,788 (JON WINDLE CONSTRUCTION based in S17) to £17,844 (AMB Joinery & Building Services based in S8), 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 Darfield by posting a job with HaMuch and we will send it to extension builders in Darfield.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Barnsley | £31 | £242 |
| 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 Doncaster | £29 | £238 |
| Underpin A Building near Pontefract | £30 | £228 |
| Underpin A Building near Wakefield | £31 | £240 |
| Underpin A Building near Normanton | £30 | £233 |
| Underpin A Building near Ossett | £33 | £245 |
| Underpin A Building near Castleford | £30 | £225 |
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 - £17,426

Two storey extension - £87,890

Build a timber frame extension - £25,926

Build a swimming pool - £80,926

Single storey extension - £53,528

Side return extension - £40,672

Install an RSJ - £2,126

Outbuilding - £9,926

Build a Mansard loft conversion - £51,926

Loft conversion - £33,060

Build a kitchen extension - £41,926

Hip to gable loft conversion - £41,926

Granny annexe - £86,926

Garden office - £9,926

Convert a Garage - £15,926

Garage - £18,426

Build a flat roof extension - £21,926

Build a dormer loft conversion - £41,926

Concrete foundations - £6,176

Convert a bungalow loft - £28,926

Convert a basement - £36,672