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Green Exteriors Ltd
Derren Ward
Green Exteriors Ltd are here to help customers who need an Extension Builder in Darfield. We offer a competitive rate to complete all your extensio...
"Two storey extension" - S63, job posted 25/09/26
G.J.H Joinery & Construction
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Single story extension" - S70, job posted 05/09/26
Britishbuildogs
Trusted and professional extension builder in Darfield. Experienced in all extension buildering work and keeping within budget and on quote. Britis...
"Dormer loft conversion" - S70, job posted 09/05/26
Property Plus
Need an Extension Builder in Darfield? Property Plus has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
"Granny annexe space for mum with separate quarters" - S72, job posted 07/05/26
MANVERS CONSTRUCTION
MANVERS CONSTRUCTION is an established and experienced local extension builder in Darfield. Please contact us for a free, no obligation quote and c...
"Single storey extension" - S64, job posted 17/11/25
J CLARKE CONSTRUCTION LTD
J CLARKE CONSTRUCTION LTD are here to help customers who need an Extension Builder in Darfield. We offer a competitive rate to complete all your ex...
"I need a quote for RSJ installation under the chimney breast in living room" - S73, job posted 26/08/24
Yorkshire Garage Openers
Darfield, S73
Yorkshire Garage Openers is an established extension buildering business in Darfield. We come highly recommended and provide competitive quotes for...
Harvie Construction
Harvie Construction is an established and experienced local extension builder in Darfield. Please contact us for a free, no obligation quote and co...
DAVID LEAKE CONSTRUCTION LTD
Darfield, S73
DAVID LEAKE CONSTRUCTION LTD is an established and experienced local extension builder in Darfield. Please contact us for a free, no obligation quo...
Pc building services
Paul Chappell
Pc building services is a trusted extension builder serving customers in Darfield and the surrounding area. Contact us to today to get a competitiv...
A Baker Building & Property Service
Need an Extension Builder in Darfield? A Baker Building & Property Service has been helping local clients (20 mile radius) with their extension bui...
R.B.H Builders
R.B.H Builders is a trusted extension builder serving customers in Darfield and the surrounding area. Contact us to today to get a competitive quot...
£33/hr
£267/day
Misura Limited
Need an Extension Builder in Darfield? Misura Limited has been helping local clients (20 mile radius) with their extension buildering jobs for many...
£31/hr
£251/day
S J H Construction
Trusted and professional extension builder in Darfield. Experienced in all extension buildering work and keeping within budget and on quote. S J H ...
£30/hr
£232/day
ABC Building & Design
ABC Building & Design is an established and experienced local extension builder in Darfield. Please contact us for a free, no obligation quote and ...
£33/hr
£257/day
CONSTRUCTIONAL TIMBER
Experienced extension builder ready to quote for your work. CONSTRUCTIONAL TIMBER is the best extension builder in Darfield. No obligation free quo...
Compare Darfield extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Barnsley | £31 | £242 |
| Extension Builders near Rotherham | £32 | £257 |
| Extension Builders near Wickersley | £32 | £258 |
| Extension Builders near Sheffield | £32 | £261 |
| Extension Builders near Doncaster | £29 | £238 |
| Extension Builders near Pontefract | £30 | £228 |
| Extension Builders near Wakefield | £31 | £240 |
| Extension Builders near Normanton | £30 | £233 |
| Extension Builders near Ossett | £33 | £245 |
| Extension Builders near Castleford | £30 | £225 |
Job estimates from extension builders near you
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.

Build a timber frame extension - £26,056

Garden office - £10,056

Granny annexe - £87,056

Build a flat roof extension - £22,056

Convert a Garage - £16,056

Hip to gable loft conversion - £42,056

Convert a bungalow loft - £29,056

Build a dormer loft conversion - £42,056

Build a swimming pool - £81,056

Build a Mansard loft conversion - £52,056

Concrete foundations - £6,306

Underpin a building - £17,556

Two storey extension - £88,084

Convert a basement - £38,130

Side return extension - £42,130

Loft conversion - £34,275

Garage - £18,556

Single storey extension - £56,120

Outbuilding - £10,056

Install an RSJ - £2,256

Build a kitchen extension - £42,056
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