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Propello
Ali Alagoz
Propello is an established and experienced local extension builder in Walthamstow. Please contact us for a free, no obligation quote and competiti...
"Loft conversion" - E17, job posted 29/10/25
UK Drywall Ltd
UK Drywall Ltd is an established and experienced local extension builder in Walthamstow. Please contact us for a free, no obligation quote and comp...
"Loft conversion Double storey extension" - E18, job posted 09/08/25
2nwest Builders and Decorators Ltd
Relax... you have found a reliable extension builder in Walthamstow. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in...
"Side return extension" - E17, job posted 08/03/25
Dakus Construction Ltd
Walthamstow London, E17
Dakus Construction Ltd are here to help customers who need an Extension Builder in Walthamstow. We offer a competitive rate to complete all your ex...
"Loft conversion" - WOODFORD, job posted 02/11/24
Dragan Building Construction
Need to find an Extension Builder near you for all your extension buildering work?
Dragan Building Construction provides a local, trusted e...
"Loft conversion" - E18, job posted 13/04/24
J&H Builder
Walthamstow, E17
J&H Builder is a trusted extension builder serving customers in Walthamstow and the surrounding area. Contact us to today to get a competitive quot...
"Rear ground level extension" - E17, job posted 06/10/23
M & D BUILDING & DECORATING
M & D BUILDING & DECORATING are here to help customers who need an Extension Builder in Walthamstow. We offer a competitive rate to complete all yo...
MEGABUILD LTD
Walthamstow, E17
MEGABUILD LTD is a trusted extension builder serving customers in Walthamstow and the surrounding area. Contact us to today to get a competitive qu...
John Ghanie
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Mehar builders limited
Mehar Allahdeta
Walthamstow, E17
Experienced extension builder ready to quote for your work. Mehar builders limited is the best extension builder in Walthamstow. No obligation fre...
Gardening Life Ltd
IONUT SORIN Leoveanu
Hi , we are profesional team , we are based in Leyton but we cover all London.
Happy customers = happy team= the business is gooin...
Iservices-uk.org
Ilirjan Sheqja
Walthamstow, E17
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Expert Crew Ltd
Expert Crew Ltd is an established and experienced local extension builder in Walthamstow. Please contact us for a free, no obligation quote and com...
HHOMECONCEPTS
Walthamstow London, E17
We are Joinery and renovation company based in London where we can offer from Kitchen & wardrobes design ,supply ,installation ,joinery services an...
Bushwood Carpentry and Building Ltd
Bushwood Carpentry & Building Ltd. consists of a team of trustworthy, reliable and professional tradespeople with over 22 years experience. We are ...
Supreme Lofts Ltd
Need to find an Extension Builder near you for all your extension buildering work?
Supreme Lofts Ltd provides a local, trusted extension bu...
£46/hr
£287/day
A & B LONDON CONSTRUCTION
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£41/hr
£262/day
E & G Restoration Ltd
E & G Restoration Ltd are here to help customers who need an Extension Builder in Walthamstow. We offer a competitive rate to complete all your ext...
£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...
£38/hr
£238/day
FM BUILDING SOLUTIONS LTD
Walthamstow, E17
Relax... you have found a reliable extension builder in Walthamstow. FM BUILDING SOLUTIONS LTD is a friendly and reliable company based in Walthams...
Quickly find an Extension Builder in Walthamstow
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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 Walthamstow. 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 Walthamstow 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 - £26,240
Garden office - £10,240
Granny annexe - £87,240
Build a flat roof extension - £22,240
Convert a Garage - £16,240
Hip to gable loft conversion - £42,240
Convert a bungalow loft - £29,240
Build a dormer loft conversion - £42,240
Build a swimming pool - £81,240
Build a Mansard loft conversion - £52,240
Concrete foundations - £6,490
Underpin a building - £17,740
Two storey extension - £88,360
Convert a basement - £40,200
Side return extension - £44,200
Loft conversion - £36,000
Garage - £18,740
Single storey extension - £59,800
Outbuilding - £10,240
Install an RSJ - £2,440
Build a kitchen extension - £42,240
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