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Oterg Building Contractors
Relax... you have found a reliable extension builder in Brent Cross. Oterg Building Contractors is a friendly and reliable company based in Brent C...
"Dormer loft conversion" - HA8, job posted 06/03/26
BKB Building Contractors
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Granny annexe" - COLINDALE, job posted 12/07/25
L H Builders
Relax... you have found a reliable extension builder in Brent Cross. L H Builders is a friendly and reliable company based in Brent Cross who consi...
"Single storey extension" - COLINDALE, job posted 19/02/24
HARLEY BUILDING SERVICES LTD
HARLEY BUILDING SERVICES LTD are here to help customers who need an Extension Builder in Brent Cross. We offer a competitive rate to complete all y...
"Loft conversion 50 sq meater renovation of houe in nd out. Can call on 0203 336x xx" - NW2, job posted 05/02/24
D Bradshaw Building Renovation
D Bradshaw Building Renovation is a trusted extension builder serving customers in Brent Cross and the surrounding area. Contact us to today to get...
"Loft conversion" - NW9, job posted 18/11/23
Samuele Paolini
Samuele Paolini
Need an Extension Builder in Brent Cross? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for ...
Swiftdale Developments Ltd
Need the extension buildering job done quickly without breaking the bank? Swiftdale Developments Ltd offer fast, reliable, and affordable extension...
WHITE EAGLE CONSTRUCTION LTD
Trusted and professional extension builder in Brent Cross. Experienced in all extension buildering work and keeping within budget and on quote. WHI...
Simion PC Construction Ltd
Marcel Simion
Hi everyone!
i have good experience over 25 years working in construction and I have my on Business and my company
"I'm very happy for the job what his done" - LONDON,reviewed 29/09/17, SIMONA
Taylor Construction Services Ltd
Relax... you have found a reliable extension builder in Brent Cross. Taylor Construction Services Ltd is a friendly and reliable company based in B...
DS Construction
Trusted and professional extension builder in Brent Cross. Experienced in all extension buildering work and keeping within budget and on quote. DS ...
RF Building Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
F C Builders London ltd
Fabio Capani
With over 24 years of hands-on experience, FC Builders London Ltd specialises in home extensions, loft conversions, full renovations, kitchen and b...
Carl Construction Limited
This business has not added a description yet.
SL Building Constructions
SL Designs is a North London based company with extensive knowledge and experience in design and refurbishments.We understand the excitement of hav...
£40/hr
£257/day
MS Maintenance
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 Brent Cross. We come highly recommended and provide competitive quotes for you...
£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.
£47/hr
£294/day
Ivy Project Management
When faced with difficulties and disorganisation with her own home build, Ivana realised that there were so many unnecessary stresses and delays in...
£48/hr
£296/day
Golden Genesis Construction and Design
Golden Genesis LTD are a committed, approachable and very affordable construction & design company with experience within the building industry. Ou...
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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 Brent Cross. 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 Brent Cross 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 - £26,136

Garden office - £10,136

Granny annexe - £87,136

Build a flat roof extension - £22,136

Convert a Garage - £16,136

Hip to gable loft conversion - £42,136

Convert a bungalow loft - £29,136

Build a dormer loft conversion - £42,136

Build a swimming pool - £81,136

Build a Mansard loft conversion - £52,136

Concrete foundations - £6,386

Underpin a building - £17,636

Two storey extension - £88,204

Convert a basement - £39,030

Side return extension - £43,030

Loft conversion - £35,025

Garage - £18,636

Single storey extension - £57,720

Outbuilding - £10,136

Install an RSJ - £2,336

Build a kitchen extension - £42,136
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