From £21,880
RJH Building Services is a trusted extension builder serving customers in S41 and the surrounding area. Contact us to today to get a competitive qu...
From £22,368
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,928
Relax... you have found a reliable extension builder in S41. Palace Roofline Ltd is a friendly and reliable company based in S41 who consider no jo...
From £22,000
Need an Extension Builder in S41? D H Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From £22,336
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,272
R.J Building Services is an established extension buildering business in S41. We come highly recommended and provide competitive quotes for your wo...
From £21,936
Trusted and professional extension builder in S41. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook C...
From £21,888
JWM Building Services is a trusted extension builder serving customers in S41 and the surrounding area. Contact us to today to get a competitive qu...
From £21,856
C ROWLEY (SELFBUILD) is an established and experienced local extension builder in S41. Please contact us for a free, no obligation quote and compet...
From £22,392
Peak Roofclean offer an inexpensive way of permanently keeping your roof free of moss, lichens and algae. Not only is it 100% effective but...

A flat roof extension ranges from the cheapest of £21,856 (C ROWLEY (SELFBUILD) based in S43) to the dearest of £22,392 (Peak Roof Clean based in S42), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in S41 by posting a job with HaMuch. We'll send it to extension builders in S41.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Chesterfield | £33 | £257 |
| Build A Flat Roof Extension near Dronfield | £35 | £288 |
| Build A Flat Roof Extension near Sheffield | £34 | £280 |
| Build A Flat Roof Extension near Alfreton | £34 | £261 |
| Build A Flat Roof Extension near Sutton-in-Ashfield | £33 | £265 |
| Build A Flat Roof Extension near Mansfield Woodhouse | £33 | £263 |
| Build A Flat Roof Extension near Worksop | £33 | £265 |
| Build A Flat Roof Extension near Kirkby-in-Ashfield | £34 | £270 |
| Build A Flat Roof Extension near Ashfield | £34 | £270 |
| Build A Flat Roof Extension 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 - £17,586

Two storey extension - £88,128

Build a timber frame extension - £26,086

Build a swimming pool - £81,086

Single storey extension - £56,712

Side return extension - £42,463

Install an RSJ - £2,286

Outbuilding - £10,086

Build a Mansard loft conversion - £52,086

Loft conversion - £34,553

Build a kitchen extension - £42,086

Hip to gable loft conversion - £42,086

Granny annexe - £87,086

Garden office - £10,086

Convert a Garage - £16,086

Garage - £18,586

Build a flat roof extension - £22,086

Build a dormer loft conversion - £42,086

Concrete foundations - £6,336

Convert a bungalow loft - £29,086

Convert a basement - £38,463