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Five Star Builder
Experienced extension builder ready to quote for your work. Five Star Builder is the best extension builder in Seven Sisters. No obligation free qu...
"Single storey extension" - N17, job posted 28/09/26
J&H Builder
J&H Builder is a trusted extension builder serving customers in Seven Sisters and the surrounding area. Contact us to today to get a competitive qu...
"Small kitchen extension into garden." - N22, job posted 07/02/26
London Trowel Co.
Relax... you have found a reliable extension builder in Seven Sisters. London Trowel Co. is a friendly and reliable company based in Seven Sisters ...
"Need an extension builder" - N4, job posted 18/05/25
Best Builders
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"RSJ re-installation" - N16, job posted 10/04/25
GG CONSTRUCTION LTD
GG CONSTRUCTION LTD is a trusted extension builder serving customers in Seven Sisters and the surrounding area. Contact us to today to get a compet...
"Having planning permission, having structure drawing, about 40 square metres basement extension, looking for builders, want to be done ASAP." - N7, job posted 15/12/23
A K Decoration & Building Serv
Need an Extension Builder in Seven Sisters? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buil...
"Rear ground level extension" - E17, job posted 06/10/23
Amastic Roofing Building and Scaffolding Services Ltd
Trusted and professional extension builder in Seven Sisters. Experienced in all extension buildering work and keeping within budget and on quote. A...
DLER SINGH D S BUILDERS
DLER SINGH D S BUILDERS are here to help customers who need an Extension Builder in Seven Sisters. We offer a competitive rate to complete all your...
Fine Loft Construction
Fine Loft Construction are here to help customers who need an Extension Builder in Seven Sisters. We offer a competitive rate to complete all your ...
KJV CONSTRUCTION LTD
KJV CONSTRUCTION LTD is an established and experienced local extension builder in Seven Sisters. Please contact us for a free, no obligation quote ...
London Metropolitan Construction Ltd
London Metropolitan Construction Ltd is and property refurbishment and renovation company based and operating throughout London undertaking new bui...
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...
£46/hr
£293/day
BM Lofts Limited
Need an Extension Builder in Seven Sisters? BM Lofts Limited has been helping local clients (5 mile radius) with their extension buildering jobs fo...
£45/hr
£282/day
M Collins Builders Ltd
Michael Collins Builders are experts in domestic conversions and extensions - drawing on over 25 years experience in the trade. We have built up a ...
£46/hr
£289/day
The Victorian Bay Restoration Co
We source all the original and traditional materials along withnew materials and the latest technology. This enables us tocreate perfect architectu...
£43/hr
£268/day
FISKA DESIGN & BUILD
FISKA DESIGN & BUILD are here to help customers who need an Extension Builder in Seven Sisters. We offer a competitive rate to complete all your ex...
£41/hr
£255/day
Maddison & Sons
Maddison & sons pride ourselves on attention to detail at the highest level.With an extensive background As Mains Contractors in construction fabri...
£38/hr
£240/day
OAKWOOD CONSTRUCTION UK LTD
Need to find an Extension Builder near you for all your extension buildering work?
OAKWOOD CONSTRUCTION UK LTD provides a local, trusted ex...
£43/hr
£267/day
Brothers Group
Our building services company Brothers Group have been helping customers in North, East and West London and the surrounding area by providing profe...
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- Enter your details: We’ll match you with Extension Builders in Seven Sisters. 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 Seven Sisters 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 - £26,160
Garden office - £10,160
Granny annexe - £87,160
Build a flat roof extension - £22,160
Convert a Garage - £16,160
Hip to gable loft conversion - £42,160
Convert a bungalow loft - £29,160
Build a dormer loft conversion - £42,160
Build a swimming pool - £81,160
Build a Mansard loft conversion - £52,160
Concrete foundations - £6,410
Underpin a building - £17,660
Two storey extension - £88,240
Convert a basement - £39,300
Side return extension - £43,300
Loft conversion - £35,250
Garage - £18,660
Single storey extension - £58,200
Outbuilding - £10,160
Install an RSJ - £2,360
Build a kitchen extension - £42,160
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