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NA Brickwork
Experienced extension builder ready to quote for your work. NA Brickwork is the best extension builder in Sidcup. No obligation free quotes and man...
"Outbuilding" - SIDCUP, job posted 12/11/25
Master Builders
Need to find an Extension Builder near you for all your extension buildering work?
Master Builders provides a local, trusted extension buil...
"House clearing - same property you have serviced before" - DA5, job posted 11/10/25
R Tredget & Son
R Tredget & Son are here to help customers who need an Extension Builder in Sidcup. We offer a competitive rate to complete all your extension buil...
"Single storey extension" - DA15, job posted 20/05/25
Pro-Tec Roofing & Building Services Ltd
Pro-Tec Roofing & Building Services Ltd is an established and experienced local extension builder in Sidcup. Please contact us for a free, no oblig...
"Underpinning" - BEXLEY, job posted 10/03/25
May & Sons Building Solutions Limited
Our building services company May & Sons Building Solutions Limited is a family-run business established in 2019. Since then we have been helping c...
Direct Roofing
Direct Roofing is an established and experienced local extension builder in Sidcup. Please contact us for a free, no obligation quote and competiti...
PARAMOUNT CONSTRUCTION (UK)
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Self employer
Darius Kudzevicius
Trusted and professional extension builder in Sidcup. Experienced in all extension buildering work and keeping within budget and on quote. Self emp...
RJC BUILDING SERVICES
Need an Extension Builder in Sidcup? RJC BUILDING SERVICES has been helping local clients (10 mile radius) with their extension buildering jobs for...
£41/hr
£257/day
Sunny Build Ltd
Sidcup, DA14
Sunny Build Ltd is an established and experienced local extension builder in Sidcup. Please contact us for a free, no obligation quote and competit...
£37/hr
£237/day
Inspired Building Projects Limited
Need an Extension Builder in Sidcup? Inspired Building Projects Limited has been helping local clients (10 mile radius) with their extension builde...
£41/hr
£254/day
T L CONSTRUCTION
Sidcup, DA14
Trusted and professional extension builder in Sidcup. Experienced in all extension buildering work and keeping within budget and on quote. T L CONS...
£38/hr
£236/day
Montrose Builders Ltd
Need an Extension Builder in Sidcup? Montrose Builders Ltd has been helping local clients (10 mile radius) with their extension buildering jobs for...
£40/hr
£252/day
Belmont Building Company Ltd
Need to find an Extension Builder near you for all your extension buildering work?
Belmont Building Company Ltd provides a local, trusted e...
£47/hr
£291/day
BELMONT BUILDING COMPANY LTD
Trusted and professional extension builder in Sidcup. Experienced in all extension buildering work and keeping within budget and on quote. BELMONT ...
£38/hr
£237/day
Mormac Group
Relax... you have found a reliable extension builder in Sidcup. Mormac Group is a friendly and reliable company based in Sidcup who consider no job...
£51/hr
£313/day
EVConstructing Ltd
At EVConstructing Ltd , we have experience of supplying, designing and fitting bathrooms since 2011. We pride ourselves on being the go-to bathroom...
£38/hr
£239/day
Thermaframe Windows and Conservatories
This business has not added a description yet.
£41/hr
£260/day
Aura Construction
Greater London, DA14
Aura Construction is a trusted extension builder serving customers in Sidcup and the surrounding area. Contact us to today to get a competitive quo...
Quickly find an Extension Builder in Sidcup
Use these steps to find Extension Builders in Sidcup for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Sidcup. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local Sidcup Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
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 - £26,096
Garden office - £10,096
Granny annexe - £87,096
Build a flat roof extension - £22,096
Convert a Garage - £16,096
Hip to gable loft conversion - £42,096
Convert a bungalow loft - £29,096
Build a dormer loft conversion - £42,096
Build a swimming pool - £81,096
Build a Mansard loft conversion - £52,096
Concrete foundations - £6,346
Underpin a building - £17,596
Two storey extension - £88,144
Convert a basement - £38,580
Side return extension - £42,580
Loft conversion - £34,650
Garage - £18,596
Single storey extension - £56,920
Outbuilding - £10,096
Install an RSJ - £2,296
Build a kitchen extension - £42,096
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