From £21,432
R Watson Builders are here to help customers who need an Extension Builder in S43. We offer a competitive rate to complete all your extension build...
From £22,000
Need an Extension Builder in S43? D H Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From £21,856
C ROWLEY (SELFBUILD) is an established and experienced local extension builder in S43. Please contact us for a free, no obligation quote and compet...
From £21,864
Trusted and professional extension builder in S43. Experienced in all extension buildering work and keeping within budget and on quote. MGG CONSTRU...
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 £22,368
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,136
S. & A. Parsons (Building Contractors) Limited is a trusted extension builder serving customers in S43 and the surrounding area. Contact us to toda...
From £22,272
R.J Building Services is an established extension buildering business in S43. We come highly recommended and provide competitive quotes for your wo...
From £21,880
RJH Building Services is a trusted extension builder serving customers in S43 and the surrounding area. Contact us to today to get a competitive qu...
From £22,184
Trusted and professional extension builder in S43. Experienced in all extension buildering work and keeping within budget and on quote. Maison Frai...

A flat roof extension ranges from the cheapest of £21,432 (R Watson Builders based in S43) to the dearest of £22,368 (Compton Spares.com based in S41), 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 S43 by posting a job with HaMuch. We'll send it to extension builders in S43.
| 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 Worksop | £33 | £265 |
| Build A Flat Roof Extension near Sheffield | £34 | £280 |
| Build A Flat Roof Extension near Mansfield Woodhouse | £33 | £263 |
| Build A Flat Roof Extension near Sutton-in-Ashfield | £33 | £265 |
| Build A Flat Roof Extension near Forest Town | £33 | £263 |
| Build A Flat Roof Extension near Mansfield | £33 | £262 |
| Build A Flat Roof Extension near Wickersley | £33 | £257 |
| Build A Flat Roof Extension near Rotherham | £33 | £257 |
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 - £17,533

Two storey extension - £88,049

Build a timber frame extension - £26,033

Build a swimming pool - £81,033

Single storey extension - £55,656

Side return extension - £41,869

Install an RSJ - £2,233

Outbuilding - £10,033

Build a Mansard loft conversion - £52,033

Loft conversion - £34,058

Build a kitchen extension - £42,033

Hip to gable loft conversion - £42,033

Granny annexe - £87,033

Garden office - £10,033

Convert a Garage - £16,033

Garage - £18,533

Build a flat roof extension - £22,033

Build a dormer loft conversion - £42,033

Concrete foundations - £6,283

Convert a bungalow loft - £29,033

Convert a basement - £37,869