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D Bradshaw Building Renovation
D Bradshaw Building Renovation is a trusted extension builder serving customers in HA9 and the surrounding area. Contact us to today to get a compe...
"Loft conversion" - WEMBLEY, job posted 09/03/26
WHIPP CONSTRUCTION LTD
WHIPP CONSTRUCTION LTD is an established extension buildering business in HA9. We come highly recommended and provide competitive quotes for your w...
"Already have a 3m extension, I want to extend it to 6m. Main job will be the bricks, new ceiling, flooring, under floor heating." - W5, job posted 21/08/24
C & A Contractors
Wembley, HA9
C & A Contractors is a trusted extension builder serving customers in HA9 and the surrounding area. Contact us to today to get a competitive quote ...
"Loft conversion in a terrace house" - HA9, job posted 15/09/23
Krystian Wojasiewicz
Krystian Wojasiewicz
Krystian Wojasiewicz is a trusted extension builder serving customers in HA9 and the surrounding area. Contact us to today to get a competitive quo...
LALI BUILDERS
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
D Dan Construction
Trusted and professional extension builder in HA9. Experienced in all extension buildering work and keeping within budget and on quote. D Dan Const...
DIAL 1ST CONSTRUCTION LTD
Experienced extension builder ready to quote for your work. DIAL 1ST CONSTRUCTION LTD is the best extension builder in HA9. No obligation free quot...
PARKWAY MAINTENANCE & CONSTRUCTION
Trusted and professional extension builder in HA9. Experienced in all extension buildering work and keeping within budget and on quote. PARKWAY MAI...
DIU Builders Group UK
Need an Extension Builder in HA9? DIU Builders Group UK has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
EUROCONTRACTOR LIMITED
Karsan Dabasia
Trusted and professional extension builder in HA9. Experienced in all extension buildering work and keeping within budget and on quote. EUROCONTRAC...
Stamp Design & Build Ltd
Stamp Design & Build Ltd is a trusted extension builder serving customers in HA9 and the surrounding area. Contact us to today to get a competitive...
MONTY MCCARTHY BUILDERS
Need an Extension Builder in HA9? MONTY MCCARTHY BUILDERS has been helping local clients (10 mile radius) with their extension buildering jobs for ...
P Connolly Builders
Trusted and professional extension builder in HA9. Experienced in all extension buildering work and keeping within budget and on quote. P Connolly ...
S HILEY CONSTRUCTION
Need an Extension Builder in HA9? S HILEY CONSTRUCTION has been helping local clients (10 mile radius) with their extension buildering jobs for man...
Eddybuild Contractors Ltd
Eddybuild Contractors Ltd is an established and experienced local extension builder in HA9. Please contact us for a free, no obligation quote and c...
£36/hr
£303/day
TUDOR TECH LTD
Adi Hlaiyil
Qualified civil Engineer,worked and built on big projects since graduation in 1985
Council applications,proposed plans for extensi...
£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...
£42/hr
£260/day
Ace Engineering Solutions
With over 15 years of experience, we offer expertise in a range of industries and domestic areas. We pride ourselves in delivering our projects to ...
£44/hr
£272/day
St Georges Roofing
London, HA9
As a reliable, professional roofing and building contractor based in North West London, we provide roofing services of unrivalled quality across Lo...
£22/hr
£206/day
David Capita Ltd
Mihai Capita
David Capita Ltd is a specialist in the renovation of both residential and commercial properties in London; covering Nor...
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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 - £26,136

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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