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Buci builders ltd
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in SE21 and the surrounding area. Contact us to today to get a competitive quote...
"To divide a room" - SW2, job posted 08/07/25
Greens Gardening & Landscape Property Maintenance
John Mcdonagh
Watch our short video highlighting all our expertise and services here:
more than 10 y...
"Two storey extension" - HERNE HILL, job posted 12/01/25
RCB Group Design & Build
Vasi J
London, SE21
No Call out charges!
All Jobs Fully Insured and Guaranteed !!!
All aspects of Plumbing, Heating and Drains....
..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
PW Construction & Renovation Ltd
PW Construction & Renovation Ltd is a trusted extension builder serving customers in SE21 and the surrounding area. Contact us to today to get a co...
"Side return extension" - SE26, job posted 04/08/24
The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE21. No obligation free quotes and ...
"Reconstructed full House" - DULWICH, job posted 16/05/24
Vidanov Building Services
Trusted and professional extension builder in SE21. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bu...
Quality Carpentry
Quality Carpentry is a trusted extension builder serving customers in SE21 and the surrounding area. Contact us to today to get a competitive quote...
Complete Construction London Limited
Complete Construction London Limited is a trusted extension builder serving customers in SE21 and the surrounding area. Contact us to today to get ...
£40/hr
£253/day
Exquisite Touch
Relax... you have found a reliable extension builder in SE21. Exquisite Touch is a friendly and reliable company based in SE21 who consider no job ...
£49/hr
£304/day
Universal Plastering Ltd
We are a family run local business that was founded in 2007. Universal Plastering Ltd provides a wide variety of building and plastering services i...
£41/hr
£256/day
Damian Szlema Construction LTD
Need to find an Extension Builder near you for all your extension buildering work?
Damian Szlema Construction LTD provides a local, trusted...
£46/hr
£289/day
Studio Such
Design and Build - Specialising in home restoration, extension, kitchen design, bespoke joinery and furniture sourcing
£37/hr
£235/day
FRIERN BUILDING LTD
FRIERN BUILDING LTD is an established extension buildering business in SE21. 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 SE21. We offer a competitive rate to complete all your extensi...
£42/hr
£266/day
All Trades Builders
Need to find an Extension Builder near you for all your extension buildering work?
All Trades Builders provides a local, trusted extension ...
£41/hr
£260/day
Atelier 10
Atelier 10 are here to help customers who need an Extension Builder in SE21. We offer a competitive rate to complete all your extension buildering ...
£47/hr
£298/day
RM Building (London) Ltd
Trusted and professional extension builder in SE21. Experienced in all extension buildering work and keeping within budget and on quote. RM Buildin...
£41/hr
£260/day
CHRIS BALL & SON ROOFING LTD
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£44/hr
£277/day
Create Bespoke
Greater London, SE21
Create Bespoke is a team of design and build experts, specialising in bespoke and luxury finishes. Your vision is at the heart of our process. Thro...
£50/hr
£313/day
babar Jeweler Shop
Business Email:info@ Glazing & Boarding With local glaziers available 24 hours a day, 7 days a week we...
Quickly find an Extension Builder in SE21
Use these steps to find Extension Builders in SE21 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in SE21. 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 SE21 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 - £26,184
Garden office - £10,184
Granny annexe - £87,184
Build a flat roof extension - £22,184
Convert a Garage - £16,184
Hip to gable loft conversion - £42,184
Convert a bungalow loft - £29,184
Build a dormer loft conversion - £42,184
Build a swimming pool - £81,184
Build a Mansard loft conversion - £52,184
Concrete foundations - £6,434
Underpin a building - £17,684
Two storey extension - £88,276
Convert a basement - £39,570
Side return extension - £43,570
Loft conversion - £35,475
Garage - £18,684
Single storey extension - £58,680
Outbuilding - £10,184
Install an RSJ - £2,384
Build a kitchen extension - £42,184
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