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Exquisite Design & Build Ltd
Need an Extension Builder in SE15? Exquisite Design & Build Ltd has been helping local clients (5 mile radius) with their extension buildering jobs...
"Two storey extension" - HERNE HILL, job posted 12/01/25
The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE15. No obligation free quotes and ...
"Loft conversion" - SE16, job posted 15/04/24
Vidanov Building Services
Trusted and professional extension builder in SE15. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bu...
"Hello can you help me build a LEAN-TO CONSERVATORY/SUN ROOM . My bedroom is very small and need extra space. I would require insulation; a small windows for fresh air and French Doors with a lock. QUOTE PLS: Not sure to build from scratch or buy one to be erected SIZE: 8X6 OR 10X6. THANK YOU." - SE8, job posted 24/02/24
DUWIX BUILDING MAINTENANCE
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your exten...
Building and Plastering Solution
Peter Cesma
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
Home Tranformers Ltd
At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...
Ask Building
Need to find an Extension Builder near you for all your extension buildering work?
Ask Building provides a local, trusted extension builder...
AAA Design Decorators
AAA Design Decorators are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extension ...
AGRI CONSTRUCTION
Need to find an Extension Builder near you for all your extension buildering work?
AGRI CONSTRUCTION provides a local, trusted extension bu...
South East Builders
South East Builders are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extension bu...
£37/hr
£235/day
FRIERN BUILDING LTD
FRIERN BUILDING LTD is an established extension buildering business in SE15. We come highly recommended and provide competitive quotes for your wor...
£45/hr
£284/day
BERNARD CONSTRUCTION LTD
BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extensi...
£76/hr
£756/day
Chris Ellis Project Service
Chris Ellis
Based in Camberwell south east London we provide a turnkey service for Domestic and Commercial construction Projects from conception to compl...
£45/hr
£282/day
SCL Design & Build Ltd
SCL Design & Build Ltd are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extension...
£47/hr
£298/day
RM Building (London) Ltd
Trusted and professional extension builder in SE15. Experienced in all extension buildering work and keeping within budget and on quote. RM Buildin...
£46/hr
£286/day
Baseline Build & Renovate
Greater London, SE15
Trusted and professional extension builder in SE15. Experienced in all extension buildering work and keeping within budget and on quote. Baseline B...
£41/hr
£258/day
Casa Of Peckham London
The Casa Shop is nestled in the heart of Peckham, London. Established in 1998, we are specialist suppliers and installers of Eco Wood-Burning and G...
£43/hr
£265/day
Global Business BoxLttd
Greater London, SE15
Global Business BoxLttd are here to help customers who need an Extension Builder in SE15. We offer a competitive rate to complete all your extensio...
£50/hr
£311/day
Oxus Construction
Need an Extension Builder in SE15? Oxus Construction has been helping local clients (5 mile radius) with their extension buildering jobs for many y...
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Use these steps to find Extension Builders in SE15 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in SE15. 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 SE15 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 - £26,304

Garden office - £10,304

Granny annexe - £87,304

Build a flat roof extension - £22,304

Convert a Garage - £16,304

Hip to gable loft conversion - £42,304

Convert a bungalow loft - £29,304

Build a dormer loft conversion - £42,304

Build a swimming pool - £81,304

Build a Mansard loft conversion - £52,304

Concrete foundations - £6,554

Underpin a building - £17,804

Two storey extension - £88,456

Convert a basement - £40,920

Side return extension - £44,920

Loft conversion - £36,600

Garage - £18,804

Single storey extension - £61,080

Outbuilding - £10,304

Install an RSJ - £2,504

Build a kitchen extension - £42,304
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