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GDW Construction
Relax... you have found a reliable extension builder in SM2. GDW Construction is a friendly and reliable company based in SM2 who consider no job a...
"Thank you so much single story extension" - NORTH CHEAM, job posted 27/10/25
D & R Roofing & Loft Conversions, Building & Design
Relax... you have found a reliable extension builder in SM2. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable company...
Hilton building contractors ltd
Hilton building contractors ltd is a trusted extension builder serving customers in SM2 and the surrounding area. Contact us to today to get a comp...
Amazing Space Design and Build Ltd.
Relax... you have found a reliable extension builder in SM2. Amazing Space Design and Build Ltd. is a friendly and reliable company based in SM2 wh...
RM Sanwell Roofing
RM Sanwell Roofing is a trusted extension builder serving customers in SM2 and the surrounding area. Contact us to today to get a competitive quote...
CSJ Building Services
Trusted and professional extension builder in SM2. Experienced in all extension buildering work and keeping within budget and on quote. CSJ Buildin...
Masters Property Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
FALCON BUILDERS
Need an Extension Builder in SM2? FALCON BUILDERS has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
Lee Builders & Decorators
Trusted and professional extension builder in SM2. Experienced in all extension buildering work and keeping within budget and on quote. Lee Builder...
Rayner & Cook Building Services
Experienced extension builder ready to quote for your work. Rayner & Cook Building Services is the best extension builder in SM2. No obligation fre...
UK Services & Supplies Ltd
Need to find an Extension Builder near you for all your extension buildering work?
UK Services & Supplies Ltd provides a local, trusted ext...
S & S CONSTRUCTION (UK) LTD
Relax... you have found a reliable extension builder in SM2. S & S CONSTRUCTION (UK) LTD is a friendly and reliable company based in SM2 who consid...
£43/hr
£268/day
Magna Building Services Ltd
Sutton, SM2
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£42/hr
£262/day
KADEK BUILDING SERVICES
KADEK BUILDING SERVICES is a trusted extension builder serving customers in SM2 and the surrounding area. Contact us to today to get a competitive ...
£47/hr
£292/day
DP BUILDERS UK LTD
DP BUILDERS UK LTD is a trusted extension builder serving customers in SM2 and the surrounding area. Contact us to today to get a competitive quote...
£41/hr
£254/day
Croystone Ltd.
Croystone Ltd is a design and construction company with its own direct labour force but can also boast a wide range of subcontract labour skills an...
£48/hr
£306/day
KMI London Ltd
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£47/hr
£296/day
ARK Building & Maintenance Ltd
Adam
ARK Building & Maintenance Ltd is an established extension buildering business in SM2. We come highly recommended and provide competitive quotes fo...
£41/hr
£260/day
Hunt Roofing Ltd
Sutton, SM2
Need to find an Extension Builder near you for all your extension buildering work?
Hunt Roofing Ltd provides a local, trusted extension bui...
£48/hr
£300/day
David Ingram Builder
Need to find an Extension Builder near you for all your extension buildering work?
David Ingram Builder provides a local, trusted extension...
Quickly find an Extension Builder in SM2
Use these steps to find Extension Builders in SM2 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in SM2. 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 SM2 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 - £26,224
Garden office - £10,224
Granny annexe - £87,224
Build a flat roof extension - £22,224
Convert a Garage - £16,224
Hip to gable loft conversion - £42,224
Convert a bungalow loft - £29,224
Build a dormer loft conversion - £42,224
Build a swimming pool - £81,224
Build a Mansard loft conversion - £52,224
Concrete foundations - £6,474
Underpin a building - £17,724
Two storey extension - £88,336
Convert a basement - £40,020
Side return extension - £44,020
Loft conversion - £35,850
Garage - £18,724
Single storey extension - £59,480
Outbuilding - £10,224
Install an RSJ - £2,424
Build a kitchen extension - £42,224
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