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The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE5. No obligation free quotes and m...
"To divide a room" - SW2, job posted 08/07/25
D & G Building & Decorating
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SE5. No obligation free qu...
"Basement conversion" - LAMBETH, job posted 02/05/25
Cornerstones Construction
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in SE5. No obligation free quot...
"Extension to lower ground area." - SW9, job posted 28/03/25
Vidanov Building Services
Trusted and professional extension builder in SE5. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bui...
"Two storey extension" - HERNE HILL, job posted 12/01/25
DUWIX BUILDING MAINTENANCE
Camberwell, SE5
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SE5. We offer a competitive rate to complete all your extens...
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 SE5. We offer a competitive rate to complete all your extension b...
AGRI CONSTRUCTION
Need to find an Extension Builder near you for all your extension buildering work?
AGRI CONSTRUCTION provides a local, trusted extension bu...
BUILD TEAM
Need to find an Extension Builder near you for all your extension buildering work?
BUILD TEAM provides a local, trusted extension builderin...
£37/hr
£235/day
FRIERN BUILDING LTD
FRIERN BUILDING LTD is an established extension buildering business in SE5. We come highly recommended and provide competitive quotes for your work...
£76/hr
£756/day
Chris Ellis Project Service
Chris Ellis
London, SE5
Based in Camberwell south east London we provide a turnkey service for Domestic and Commercial construction Projects from conception to compl...
£41/hr
£260/day
Atelier 10
Atelier 10 are here to help customers who need an Extension Builder in SE5. We offer a competitive rate to complete all your extension buildering j...
£41/hr
£253/day
James Hall Property Solutions Ltd
James Hall Property Solutions Ltd is a trusted extension builder serving customers in SE5 and the surrounding area. Contact us to today to get a co...
£50/hr
£311/day
Oxus Construction
Need an Extension Builder in SE5? Oxus Construction has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
£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...
£45/hr
£282/day
Finch Lockerbie
Relax... you have found a reliable extension builder in SE5. Finch Lockerbie is a friendly and reliable company based in SE5 who consider no job as...
£43/hr
£244/day
AL-KO Construction Ltd
Get an Extension Builder in SE5 who you can trust. AL-KO Construction Ltd provide friendly and reliable extension buildering services to the SE5 ar...
Quickly find an Extension Builder in SE5
Use these steps to find Extension Builders in SE5 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in SE5. 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 SE5 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 - £26,272
Garden office - £10,272
Granny annexe - £87,272
Build a flat roof extension - £22,272
Convert a Garage - £16,272
Hip to gable loft conversion - £42,272
Convert a bungalow loft - £29,272
Build a dormer loft conversion - £42,272
Build a swimming pool - £81,272
Build a Mansard loft conversion - £52,272
Concrete foundations - £6,522
Underpin a building - £17,772
Two storey extension - £88,408
Convert a basement - £40,560
Side return extension - £44,560
Loft conversion - £36,300
Garage - £18,772
Single storey extension - £60,440
Outbuilding - £10,272
Install an RSJ - £2,472
Build a kitchen extension - £42,272
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