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Best Builders
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Single storey extension" - N17, job posted 28/09/26
"Groundworkers construction" - N9, job posted 06/09/23
Loft and Teams Ltd
Sajmar Metali
Loft and Teams Ltd is an established extension buildering business in N9. We come highly recommended and provide competitive quotes for your work.<...
Abarth Construction Ltd
We are an experienced team dedicated to designing property in a way that is both beautiful and practical. For most people buying a property is an e...
£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...
£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...
£51/hr
£316/day
United construction group
Relax... you have found a reliable extension builder in N9. United construction group is a friendly and reliable company based in N9 who consider n...
£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...
£48/hr
£301/day
PonariBuilders Ltd
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£47/hr
£301/day
K J B Loft Conversions & Extensions
K J B Loft Conversions & Extensions is a trusted extension builder serving customers in N9 and the surrounding area. Contact us to today to get a c...
£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 N9. No obligation free quotes...
£38/hr
£235/day
Coss Construction Ltd
Need an Extension Builder in N9? Coss Construction Ltd has been helping local clients (5 mile radius) with their extension buildering jobs for many...
£41/hr
£262/day
Deltx Ltd
London, N9
Deltx Building Services is a well established company based in North London. We take pride in high quality craftsmanship and professional installat...
£48/hr
£297/day
Eckford Chong Design
Eckford Chong Design is an established and experienced local extension builder in N9. Please contact us for a free, no obligation quote and competi...
£48/hr
£299/day
PS Contractors
PS Contractors is an established and experienced local extension builder in N9. Please contact us for a free, no obligation quote and competitive r...
£41/hr
£255/day
Commissioned by you LLP
Relax... you have found a reliable extension builder in N9. Commissioned by you LLP is a friendly and reliable company based in N9 who consider no ...
£51/hr
£315/day
BHM Developments and Property Management Ltd
BHM Developments and Property Management Ltd is dedicated to providing you with the highest quality of building services available. We carry out ev...
£48/hr
£299/day
Cityscape Projects Ltd
Cityscape Projects Ltd is an established and experienced local extension builder in N9. Please contact us for a free, no obligation quote and compe...
£44/hr
£277/day
Nico Contractors Limited
Need an Extension Builder in N9? Nico Contractors Limited has been helping local clients (10 mile radius) with their extension buildering jobs for ...
£50/hr
£312/day
SHJ Construction Services Limited
Experienced extension builder ready to quote for your work. SHJ Construction Services Limited is the best extension builder in N9. No obligation fr...
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Use these steps to find Extension Builders in N9 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in N9. 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 N9 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 - £26,264
Garden office - £10,264
Granny annexe - £87,264
Build a flat roof extension - £22,264
Convert a Garage - £16,264
Hip to gable loft conversion - £42,264
Convert a bungalow loft - £29,264
Build a dormer loft conversion - £42,264
Build a swimming pool - £81,264
Build a Mansard loft conversion - £52,264
Concrete foundations - £6,514
Underpin a building - £17,764
Two storey extension - £88,396
Convert a basement - £40,470
Side return extension - £44,470
Loft conversion - £36,225
Garage - £18,764
Single storey extension - £60,280
Outbuilding - £10,264
Install an RSJ - £2,464
Build a kitchen extension - £42,264
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