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Swiftdale Developments Ltd
Need the extension buildering job done quickly without breaking the bank? Swiftdale Developments Ltd offer fast, reliable, and affordable extension...
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Taylor Construction Services Ltd
Relax... you have found a reliable extension builder in Finchley. Taylor Construction Services Ltd is a friendly and reliable company based in Finc...
DS Construction
Finchley, N3
Trusted and professional extension builder in Finchley. Experienced in all extension buildering work and keeping within budget and on quote. DS Con...
Odp Builders
Need an Extension Builder in Finchley? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
RF Building Services
Finchley, N3
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
D.J Coyle & Co.Ltd
Trusted and professional extension builder in Finchley. Experienced in all extension buildering work and keeping within budget and on quote. D.J Co...
Chelebi Builders
Chelebi Builders is a bespoke Build & Design construction company based in North London. Our expertise range from Loft Conversions, Extensions, Hou...
Gwe construction
Trusted and professional extension builder in Finchley. Experienced in all extension buildering work and keeping within budget and on quote. Gwe co...
£47/hr
£294/day
AK Builders
Finchley, N3
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£40/hr
£249/day
SINCLAIR BUILDERS
SINCLAIR BUILDERS is an established extension buildering business in Finchley. We come highly recommended and provide competitive quotes for your w...
£42/hr
£267/day
B. S. D. Design & Build Ltd
Yossi Levi
B.S.D Design & Build LTD is a member off FMB- Federation of Master Builders. Our company is also a Trustmark registered company.
£38/hr
£243/day
Builder for London
Builder for London is an established and experienced local extension builder in Finchley. Please contact us for a free, no obligation quote and com...
£45/hr
£282/day
L&V BUILDING CONSTRUCTION LTD
Finchley, N3
L&V BUILDING CONSTRUCTION LTD are here to help customers who need an Extension Builder in Finchley. We offer a competitive rate to complete all you...
£44/hr
£275/day
Ninos Carpentry Ltd
Ninos Carpentry LtdComplete Refurbishment Front, Side and Rear Extensions. Loft Conversions Garage Conversion All types of Roofs. Front Drive and D...
£43/hr
£270/day
Lacon Design & Build
Greater London, N3
Lacon Design & Build are here to help customers who need an Extension Builder in Finchley. We offer a competitive rate to complete all your extensi...
£37/hr
£233/day
Buildwiseonecompanyfoursolutions Ltd.
Experienced extension builder ready to quote for your work. Buildwiseonecompanyfoursolutions Ltd. is the best extension builder in Finchley. No obl...
£38/hr
£225/day
Bathkitchen Renovation Ltd
Finchley, N3
With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. Bathkitchen Renovation Ltd und...
£44/hr
£272/day
BestDecorLondonLtd
BestDecorLondonLtd is an established and experienced local extension builder in Finchley. Please contact us for a free, no obligation quote and com...
£40/hr
£255/day
London Loft Co
Finchley London, N3
London Loft Co are here to help customers who need an Extension Builder in Finchley. We offer a competitive rate to complete all your extension bui...
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- Enter your details: We’ll match you with Extension Builders in Finchley. 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 Finchley Extension Builders or phone them directly - you’re in control!
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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 - £26,176

Garden office - £10,176

Granny annexe - £87,176

Build a flat roof extension - £22,176

Convert a Garage - £16,176

Hip to gable loft conversion - £42,176

Convert a bungalow loft - £29,176

Build a dormer loft conversion - £42,176

Build a swimming pool - £81,176

Build a Mansard loft conversion - £52,176

Concrete foundations - £6,426

Underpin a building - £17,676

Two storey extension - £88,264

Convert a basement - £39,480

Side return extension - £43,480

Loft conversion - £35,400

Garage - £18,676

Single storey extension - £58,520

Outbuilding - £10,176

Install an RSJ - £2,376

Build a kitchen extension - £42,176
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