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DW Building
DW Building is a trusted extension builder serving customers in Botany Bay and the surrounding area. Contact us to today to get a competitive quote...
"Underpinning" - EN2, job posted 19/12/25
£44/hr
£271/day
B&B London Construction Ltd
Arben Neza (Benny)
We are focused on delivering high quality loft conversions, house extensions, full or partial house refurbishment, also maximising the full potent...
"Rear dormer loft extension to provide 2 bedrooms and 1 shower room on a semi-detached property in Enfield." - EN2, job posted 15/07/25
£45/hr
£282/day
S E H BUILDERS LTD
Need to find an Extension Builder near you for all your extension buildering work?
S E H BUILDERS LTD provides a local, trusted extension b...
"Rear dormer loft extension to provide 2 bedrooms and 1 shower room on a semi-detached property in Enfield" - EN2, job posted 15/07/25
£51/hr
£316/day
United construction group
Relax... you have found a reliable extension builder in Botany Bay. United construction group is a friendly and reliable company based in Botany Ba...
"Loft extension and ground floor extension" - EN2, job posted 04/12/23
£43/hr
£270/day
NexLevel Contractors Ltd
Nexlevel - An aspiring construction and refurbishment company situated in the London. As a family-run business that is meshed with love, we believe...
£49/hr
£304/day
AL Plumbing & Electrical
Experienced extension builder ready to quote for your work. AL Plumbing & Electrical is the best extension builder in Botany Bay. No obligation fre...
£46/hr
£293/day
Bzone Builders
Need an Extension Builder in Botany Bay? Bzone Builders has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
£45/hr
£280/day
The Orchid Group
The Orchid Group are here to help customers who need an Extension Builder in Botany Bay. We offer a competitive rate to complete all your extension...
£39/hr
£248/day
A & R Design
We launched A & R Design as a small, local, family business back in 1996, building on the experience we both already had in design and decoration, ...
£45/hr
£281/day
A & R Design
Trusted and professional extension builder in Botany Bay. Experienced in all extension buildering work and keeping within budget and on quote. A & ...
£40/hr
£248/day
W-G LOFTS
W-G LOFTS have over 25 years experience in the construction industry we are based in ENFIELD covering all surrounding areasWe manage your l...
£41/hr
£256/day
Firtree Building Services Ltd
Firtree Building Services Ltd is a trusted extension builder serving customers in Botany Bay and the surrounding area. Contact us to today to get a...
£45/hr
£278/day
SweepSmart
SweepSmart is an established extension buildering business in Botany Bay. We come highly recommended and provide competitive quotes for your work.<...
£47/hr
£300/day
Angelo Broccolo
Trusted and professional extension builder in Botany Bay. Experienced in all extension buildering work and keeping within budget and on quote. Ange...
£41/hr
£255/day
C. Jenkin Builders Limited
C. Jenkin Builders Limited is an established extension buildering business in Botany Bay. We come highly recommended and provide competitive quotes...
£48/hr
£299/day
Cityscape Projects Ltd
Cityscape Projects Ltd is an established and experienced local extension builder in Botany Bay. Please contact us for a free, no obligation quote a...
£41/hr
£259/day
Des Contract Ltd
Relax... you have found a reliable extension builder in Botany Bay. Des Contract Ltd is a friendly and reliable company based in Botany Bay who con...
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- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Botany Bay. 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 Botany Bay 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 - £26,256
Garden office - £10,256
Granny annexe - £87,256
Build a flat roof extension - £22,256
Convert a Garage - £16,256
Hip to gable loft conversion - £42,256
Convert a bungalow loft - £29,256
Build a dormer loft conversion - £42,256
Build a swimming pool - £81,256
Build a Mansard loft conversion - £52,256
Concrete foundations - £6,506
Underpin a building - £17,756
Two storey extension - £88,384
Convert a basement - £40,380
Side return extension - £44,380
Loft conversion - £36,150
Garage - £18,756
Single storey extension - £60,120
Outbuilding - £10,256
Install an RSJ - £2,456
Build a kitchen extension - £42,256
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