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Martin Metcalfe
Need an Extension Builder in S1? Trinity Building Services has been helping local clients (20 mile radius) with their extension buildering jobs for...
Trusted and professional extension builder in S1. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery ...
Hallamshire Paving is an established and experienced local extension builder in S1. Please contact us for a free, no obligation quote and competiti...
BP Builders are here to help customers who need an Extension Builder in S1. We offer a competitive rate to complete all your extension buildering j...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 £39,390
Milestone Builders is an established extension buildering business in S1. We come highly recommended and provide competitive quotes for your work.<...
From £41,010
Whitshaw Builders LTD is an established and experienced local extension builder in S1. Please contact us for a free, no obligation quote and compet...
From £39,210
Trojan Turnarounds Ltd is a trusted extension builder serving customers in S1 and the surrounding area. Contact us to today to get a competitive qu...
From £41,280
Blenheim Park Developments is an established and experienced local extension builder in S1. Please contact us for a free, no obligation quote and c...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in S1 by posting a job with HaMuch and we will send it to extension builders in S1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Sheffield | £32 | £261 |
| Convert A Basement near Dronfield | £33 | £262 |
| Convert A Basement near Rotherham | £32 | £257 |
| Convert A Basement near Wickersley | £32 | £258 |
| Convert A Basement near Chesterfield | £33 | £257 |
| Convert A Basement near Barnsley | £31 | £242 |
| Convert A Basement near Worksop | £33 | £265 |
| Convert A Basement near Doncaster | £29 | £238 |
| Convert A Basement near Mansfield Woodhouse | £33 | £262 |
| Convert A Basement near Holmfirth | £30 | £232 |
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 - £17,603

Two storey extension - £88,155

Build a timber frame extension - £26,103

Build a swimming pool - £81,103

Single storey extension - £57,064

Side return extension - £42,661

Install an RSJ - £2,303

Outbuilding - £10,103

Build a Mansard loft conversion - £52,103

Loft conversion - £34,718

Build a kitchen extension - £42,103

Hip to gable loft conversion - £42,103

Granny annexe - £87,103

Garden office - £10,103

Convert a Garage - £16,103

Garage - £18,603

Build a flat roof extension - £22,103

Build a dormer loft conversion - £42,103

Concrete foundations - £6,353

Convert a bungalow loft - £29,103

Convert a basement - £38,661