From £10,008
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 £10,368
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,968
Trusted and professional extension builder in S18. Experienced in all extension buildering work and keeping within budget and on quote. R S Heating...
From £10,392
Peak Roofclean offer an inexpensive way of permanently keeping your roof free of moss, lichens and algae. Not only is it 100% effective but...
From £10,336
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,856
C ROWLEY (SELFBUILD) is an established and experienced local extension builder in S18. Please contact us for a free, no obligation quote and compet...
From £10,072
Need an Extension Builder in S18? Cortworth Millhouse Design & Build has been helping local clients (20 mile radius) with their extension builderin...
From £9,936
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 £10,344
Need to find an Extension Builder near you for all your extension buildering work?
JHM Property Services Ltd provides a local, trusted exte...

Outbuilding costs in S18 range from the cheapest of £9,288 (JON WINDLE CONSTRUCTION based in S17) to the dearest of £10,392 (Peak Roof Clean based in S42), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in S18 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Dronfield | £35 | £288 |
| Outbuilding near Chesterfield | £33 | £257 |
| Outbuilding near Sheffield | £34 | £280 |
| Outbuilding near Rotherham | £33 | £257 |
| Outbuilding near Wickersley | £33 | £257 |
| Outbuilding near Worksop | £33 | £265 |
| Outbuilding near Alfreton | £34 | £261 |
| Outbuilding near Sutton-in-Ashfield | £33 | £265 |
| Outbuilding near Mansfield Woodhouse | £33 | £263 |
| Outbuilding near Kirkby-in-Ashfield | £34 | £270 |
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 - £17,557

Two storey extension - £88,085

Build a timber frame extension - £26,057

Build a swimming pool - £81,057

Single storey extension - £56,136

Side return extension - £42,139

Install an RSJ - £2,257

Outbuilding - £10,057

Build a Mansard loft conversion - £52,057

Loft conversion - £34,283

Build a kitchen extension - £42,057

Hip to gable loft conversion - £42,057

Granny annexe - £87,057

Garden office - £10,057

Convert a Garage - £16,057

Garage - £18,557

Build a flat roof extension - £22,057

Build a dormer loft conversion - £42,057

Concrete foundations - £6,307

Convert a bungalow loft - £29,057

Convert a basement - £38,139