How HaMuch saves you money
Post your job for free
We send your job to ALL Greater London extension builders
Compare quotes
Available extension builders in Greater London reply
Save Money
Select your affordable Greater London extension builder
Post your job
J&S WALLINGTON LIMITED
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
"1st floor Timber frame extension 28m2" - SE9, job posted 15/04/26
Saintflexs
Julian Cafun
Need an Extension Builder in Greater London? Saintflexs has been helping local clients (10 mile radius) with their extension buildering jobs for m...
"Builder Quote Request please To convert attached garage into a wc + shower room + living space. Replace front garage door with masonry + window (specify window size unknown now). Install rear door and window and internal door Relocate fuseboard; install new lighting,sockets &..." - BROMLEY, job posted 03/08/25
Our Builders Ltd
Max Dixon
We are a construction company specialising in all aspects of building works, loft construction Extension complete home renovation, structural ...
"Builder Quote Request please To convert attached garage into a wc shower room living space. Replace front garage door with masonry window (specify window size unknown now). Install rear door and window and internal door Relocate fuseboard; install new lighting,sockets" - BROMLEY, job posted 03/08/25
Cre8tive Contractors Ltd
Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in Greater London. We offer a competitive rate to complete all yo...
"Outbuilding" - GREATER LONDON, job posted 25/07/25
AAB Tile Installation & Repairs
AAB Tile Installation & Repairs are here to help customers who need an Extension Builder in Greater London. We offer a competitive rate to complete...
"Loft conversion" - BROMLEY, job posted 12/03/25
Aumosa Ltd
Experienced extension builder ready to quote for your work. Aumosa Ltd is the best extension builder in Greater London. No obligation free quotes a...
"Outbuilding" - GREATER LONDON, job posted 02/02/25
HA.ME.RA Building & Decoration
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Outbuilding" - GREATER LONDON, job posted 21/12/24
Upwards and Outwards
Relax... you have found a reliable extension builder in Greater London. Upwards and Outwards is a friendly and reliable company based in Greater Lo...
"Garage" - BROMLEY, job posted 21/07/24
Loft Living
Need an Extension Builder in Greater London? Loft Living has been helping local clients (5 mile radius) with their extension buildering jobs for ma...
"Outbuilding Foundations is already done of concrete, Need a quote with brick work. Need a quote only wood work" - BR1, job posted 13/06/24
Fairview Construction Team Ltd.
As a well-established, FMB-approved construction company, we have offices in both North and South London. Because we operate out of Bromley and Isl...
"Side return extension" - BROMLEY, job posted 03/03/24
"Loft conversion" - BR2, job posted 12/12/23
£41/hr
£259/day
Carai Ltd
Trusted and professional extension builder in Greater London. Experienced in all extension buildering work and keeping within budget and on quote. ...
"Loft conversion" - BR2, job posted 24/11/23
£43/hr
£272/day
TDR Property Maintenance
Tony Renouf
We are TDR Property Maintenance, a business that takes great pride in our work.
(Price Work Only)
Services We Cover:
...£46/hr
£290/day
PROBUILD (SE) LTD
Relax... you have found a reliable extension builder in Greater London. PROBUILD (SE) LTD is a friendly and reliable company based in Greater Londo...
£20/hr
£182/day
London Quality Construction Group Limited
Max Arnoutt
Highly dedicated company to deliver exceptional customer service
£43/hr
£264/day
Pineapple Interiors
Pineapple Interiors is an established extension buildering business in Greater London. We come highly recommended and provide competitive quotes fo...
£45/hr
£284/day
London Interiors & Maintenance Limited
London Interiors & Maintenance Limited is an established extension buildering business in Greater London. We come highly recommended and provide co...
£42/hr
£270/day
Nicholas James Construction
Nicholas James Construction is an established extension buildering business in Greater London. We come highly recommended and provide competitive q...
£41/hr
£261/day
Pinder Building Contractors
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£46/hr
£297/day
Travel London Ltd
Travel London Ltd is an established and experienced local extension builder in Greater London. Please contact us for a free, no obligation quote an...
Quickly find an Extension Builder in Greater London
Use these steps to find Extension Builders in Greater London for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Greater London. 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 Greater London 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 - £26,176
Garden office - £10,176
Granny annexe - £87,176
Build a flat roof extension - £22,176
Convert a Garage - £16,176
Hip to gable loft conversion - £42,176
Convert a bungalow loft - £29,176
Build a dormer loft conversion - £42,176
Build a swimming pool - £81,176
Build a Mansard loft conversion - £52,176
Concrete foundations - £6,426
Underpin a building - £17,676
Two storey extension - £88,264
Convert a basement - £39,480
Side return extension - £43,480
Loft conversion - £35,400
Garage - £18,676
Single storey extension - £58,520
Outbuilding - £10,176
Install an RSJ - £2,376
Build a kitchen extension - £42,176
People in Greater London searching for a Extension Builder also viewed...
The Largest Database of UK Trade Rates
At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!