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SJ Expert Building Services
SJ Expert Building Services are here to help customers who need an Extension Builder in N22. We offer a competitive rate to complete all your exten...
"Single storey extension" - N17, job posted 28/09/26
Bellator Construction Ltd
Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
"Underpin a building" - N10, job posted 26/08/26
WT Construction Service Ltd
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
"Small kitchen extension into garden." - N22, job posted 07/02/26
GG CONSTRUCTION LTD
GG CONSTRUCTION LTD is a trusted extension builder serving customers in N22 and the surrounding area. Contact us to today to get a competitive quot...
"Need an extension builder" - N4, job posted 18/05/25
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Elmfield Property Services
Need to find an Extension Builder near you for all your extension buildering work?
Elmfield Property Services provides a local, trusted ext...
A K Decoration & Building Serv
Wood Green, N22
Need an Extension Builder in N22? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buildering job...
The00Company Ltd
Homeowners look no further if you want a qualified extension builder to work in your home. The00Company Ltd are tidy and neat, providing a quality ...
Fine Loft Construction
Fine Loft Construction are here to help customers who need an Extension Builder in N22. We offer a competitive rate to complete all your extension ...
Renova PMC
Renova PMC - bespoke construction, interior designers
KJV CONSTRUCTION LTD
KJV CONSTRUCTION LTD is an established and experienced local extension builder in N22. Please contact us for a free, no obligation quote and compet...
Urban Paint + Build
Urban Paint + Build is an established extension buildering business in N22. We come highly recommended and provide competitive quotes for your work...
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...
AF Builders & Decorators Ltd
Our building services company AF Builders & Decorators Ltd has 20 years of experience in the industry. Since then we have been helping customers in...
£46/hr
£293/day
BM Lofts Limited
Need an Extension Builder in N22? BM Lofts Limited has been helping local clients (5 mile radius) with their extension buildering jobs for many yea...
£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 ...
£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...
£38/hr
£243/day
E R Z Building & Repairs Ltd
Zenel Vishaj
We complete extensions to homes, flats, bungalows & apartments these include bedrooms in loft, bathrooms, kitchens, all reception rooms ...
Quickly find an Extension Builder in N22
Use these steps to find Extension Builders in N22 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in N22. 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 N22 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 - £26,112

Garden office - £10,112

Granny annexe - £87,112

Build a flat roof extension - £22,112

Convert a Garage - £16,112

Hip to gable loft conversion - £42,112

Convert a bungalow loft - £29,112

Build a dormer loft conversion - £42,112

Build a swimming pool - £81,112

Build a Mansard loft conversion - £52,112

Concrete foundations - £6,362

Underpin a building - £17,612

Two storey extension - £88,168

Convert a basement - £38,760

Side return extension - £42,760

Loft conversion - £34,800

Garage - £18,612

Single storey extension - £57,240

Outbuilding - £10,112

Install an RSJ - £2,312

Build a kitchen extension - £42,112
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