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London Construction
London Construction is an established and experienced local extension builder in Chelsea. Please contact us for a free, no obligation quote and com...
QA's Pointing and Brick Repair
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in Chelsea. QA's Pointing and Brick Repair is a friendly and reliable company based in Chelsea...
Red Box Maintenance Ltd
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...
M & A UK Ltd
Relax... you have found a reliable extension builder in Chelsea. M & A UK Ltd is a friendly and reliable company based in Chelsea who consider no j...
AJ Wells
Need to find an Extension Builder near you for all your extension buildering work?
AJ Wells provides a local, trusted extension buildering ...
Newpark Construction
Newpark Construction are here to help customers who need an Extension Builder in Chelsea. We offer a competitive rate to complete all your extensio...
D & G Building & Decorating
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Chelsea. No obligation fre...
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in Chelsea and the surrounding area. Contact us to today to get...
A to Z Builders Ltd
A to Z Builders Ltd are here to help customers who need an Extension Builder in Chelsea. We offer a competitive rate to complete all your extension...
Cornerstones Construction
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Chelsea. No obligation free ...
Cheapest builders for loft conversion in Chelsea
Comparing extension builders estimates for Loft conversion 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 of a loft conversion in Chelsea by posting your job to extension builders in Chelsea.
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Estimates for common extension builder jobs in Chelsea;
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 - £17,778
Two storey extension - £88,418
Build a timber frame extension - £26,278
Build a swimming pool - £81,278
Single storey extension - £60,568
Side return extension - £44,632
Install an RSJ - £2,478
Outbuilding - £10,278
Build a Mansard loft conversion - £52,278
Loft conversion - £36,360
Build a kitchen extension - £42,278
Hip to gable loft conversion - £42,278
Granny annexe - £87,278
Garden office - £10,278
Convert a Garage - £16,278
Garage - £18,778
Build a flat roof extension - £22,278
Build a dormer loft conversion - £42,278
Concrete foundations - £6,528
Convert a bungalow loft - £29,278
Convert a basement - £40,632