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Select your affordable WD23 extension builder
Sharp Building Ltd is an established and experienced local extension builder in WD23. Please contact us for a free, no obligation quote and competi...
AVENUE BUILDERS is an established extension buildering business in WD23. We come highly recommended and provide competitive quotes for your work.
Relax... you have found a reliable extension builder in WD23. C S C BUILDINGS LTD is a friendly and reliable company based in WD23 who consider no ...
Relax... you have found a reliable extension builder in WD23. Frame Brickwork is a friendly and reliable company based in WD23 who consider no job ...
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in WD23. No obligation free quotes...
T N Roofing is an established extension buildering business in WD23. We come highly recommended and provide competitive quotes for your work.
Trusted and professional extension builder in WD23. Experienced in all extension buildering work and keeping within budget and on quote. Design & B...
From £45,550
MJR Construction is based in North London/Hertfordshire. We offer friendly and professional building services.Our highly experienced team speci...
From £45,730
Greater London, WD23
Need to find an Extension Builder near you for all your extension buildering work?
Active Property Solutions provides a local, trusted exte...
From £42,220
We specialize in project management, extensions, loft conversions and building renovation works. We ensure the contracts that we undertake are mana...

Comparing extension builders estimates for Side return extension 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 a side return extention by posting your job to extension builders in WD23.
"Side return extension" - WD17, job posted 03/05/24
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 - £18,038

Two storey extension - £88,806

Build a timber frame extension - £26,538

Build a swimming pool - £81,538

Single storey extension - £65,752

Side return extension - £47,548

Install an RSJ - £2,738

Outbuilding - £10,538

Build a Mansard loft conversion - £52,538

Loft conversion - £38,790

Build a kitchen extension - £42,538

Hip to gable loft conversion - £42,538

Granny annexe - £87,538

Garden office - £10,538

Convert a Garage - £16,538

Garage - £19,038

Build a flat roof extension - £22,538

Build a dormer loft conversion - £42,538

Concrete foundations - £6,788

Convert a bungalow loft - £29,538

Convert a basement - £43,548