From £18,364
Trusted and professional extension builder in S21. Experienced in all extension buildering work and keeping within budget and on quote. MGG CONSTRU...
From £18,636
S. & A. Parsons (Building Contractors) Limited is a trusted extension builder serving customers in S21 and the surrounding area. Contact us to toda...
From £18,412
Oliver Wild Ltd is an established extension buildering business in S21. We come highly recommended and provide competitive quotes for your work.
From £18,684
Trusted and professional extension builder in S21. Experienced in all extension buildering work and keeping within budget and on quote. Maison Frai...
From £18,404
Looking to Transform Your Home Space?Maison Frais are Space Solution Specialists based in S. Yorkshire. We help TRANSFORM people's family homes to ...
From £18,356
C ROWLEY (SELFBUILD) is an established and experienced local extension builder in S21. Please contact us for a free, no obligation quote and compet...
From £18,844
Need to find an Extension Builder near you for all your extension buildering work?
JHM Property Services Ltd provides a local, trusted exte...
From £17,932
R Watson Builders are here to help customers who need an Extension Builder in S21. We offer a competitive rate to complete all your extension build...
From £18,836
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £18,500
Need an Extension Builder in S21? D H Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....

Builders charge between £17,932 (R Watson Builders based in S43) and £18,844 (JHM Property Services Ltd based in S12) in S21 to build a garage, but these costs are only estimates.
Comparing extension builders estimates for building a garage gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get real quotes to build a new garage in S21 by posting a job with HaMuch and we will send it to extension builders in S21.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garage near Dronfield | £35 | £288 |
| Garage near Chesterfield | £33 | £257 |
| Garage near Sheffield | £34 | £280 |
| Garage near Worksop | £33 | £265 |
| Garage near Wickersley | £33 | £257 |
| Garage near Rotherham | £33 | £257 |
| Garage near Mansfield Woodhouse | £33 | £263 |
| Garage near Forest Town | £33 | £263 |
| Garage near Sutton-in-Ashfield | £33 | £265 |
| Garage near Mansfield | £33 | £262 |
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 - £17,497

Two storey extension - £87,995

Build a timber frame extension - £25,997

Build a swimming pool - £80,997

Single storey extension - £54,936

Side return extension - £41,464

Install an RSJ - £2,197

Outbuilding - £9,997

Build a Mansard loft conversion - £51,997

Loft conversion - £33,720

Build a kitchen extension - £41,997

Hip to gable loft conversion - £41,997

Granny annexe - £86,997

Garden office - £9,997

Convert a Garage - £15,997

Garage - £18,497

Build a flat roof extension - £21,997

Build a dormer loft conversion - £41,997

Concrete foundations - £6,247

Convert a bungalow loft - £28,997

Convert a basement - £37,464