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Reid and Co Developments Ltd
Jay Reid
"Concrete foundation" - W1T, job posted 16/10/25
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in China Town and the surrounding area. Contact us to today to ...
"Basement conversion" - LAMBETH, job posted 02/05/25
A to Z Builders Ltd
A to Z Builders Ltd are here to help customers who need an Extension Builder in China Town. We offer a competitive rate to complete all your extens...
JK Doors
JK Doors is a trusted extension builder serving customers in China Town and the surrounding area. Contact us to today to get a competitive quote fo...
JM Building Services
JM Building Services is a trusted extension builder serving customers in China Town and the surrounding area. Contact us to today to get a competit...
Buildwiser
Buildwiser is a trusted extension builder serving customers in China Town and the surrounding area. Contact us to today to get a competitive quote ...
F & F Building Services
F & F Building Services is an established extension buildering business in China Town. We come highly recommended and provide competitive quotes fo...
Q Lofts and Extensions
Anthony Sullivan
We build Lofts. We build Extensions. We undertake conversions. Our Terms and conditions apply as shown in our starter packs.
£42/hr
£269/day
plansing
Plansing Ltd
Experience the best architectural design services with PLANSING, where we flawlessly integrate innovative architectural designer products to bring ...
£41/hr
£255/day
TOP CONSTRUCTION
TOP CONSTRUCTION is an established extension buildering business in China Town. We come highly recommended and provide competitive quotes for your ...
£26/hr
£26/day
London Design And Build
London Design And Build
Here at London Design and Build, our team of architects, interior designers, structural engineers and contractors, offer a bespoke, turn-key servic...
£48/hr
£303/day
Masters Construction UK
Joel Cayless white
20 years experience in high end carpentry, joinery and furniture making
£47/hr
£292/day
Big Mamma
Big Mamma is an established and experienced local extension builder in China Town. Please contact us for a free, no obligation quote and competitiv...
£41/hr
£258/day
Cornerstone
Experienced extension builder ready to quote for your work. Cornerstone is the best extension builder in China Town. No obligation free quotes and ...
£49/hr
£304/day
Sehem Design
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£42/hr
£262/day
Gil Construction Ltd
We offer many services in both residential and commercial settings including:BathroomsBuilding & RenovationDecking & PavingDemolitionDoor Installat...
£42/hr
£260/day
Whitehorse Build London
Whitehorse Build London offers a full management service running each project from design through to completion, removing many of the hassle associ...
£41/hr
£258/day
My Lady Builder
My Lady Builder is founded by Marion Watts, award winning property developerwith over 17 years experience in the industry. She hosted the Kensingto...
£43/hr
£268/day
House Rendering Ltd
House Rendering Ltd is a trusted extension builder serving customers in China Town and the surrounding area. Contact us to today to get a competiti...
£45/hr
£280/day
HouseUP
Relax... you have found a reliable extension builder in China Town. HouseUP is a friendly and reliable company based in China Town who consider no ...
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Use these steps to find Extension Builders in China Town for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in China Town. 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 China Town 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 - £26,240

Garden office - £10,240

Granny annexe - £87,240

Build a flat roof extension - £22,240

Convert a Garage - £16,240

Hip to gable loft conversion - £42,240

Convert a bungalow loft - £29,240

Build a dormer loft conversion - £42,240

Build a swimming pool - £81,240

Build a Mansard loft conversion - £52,240

Concrete foundations - £6,490

Underpin a building - £17,740

Two storey extension - £88,360

Convert a basement - £40,200

Side return extension - £44,200

Loft conversion - £36,000

Garage - £18,740

Single storey extension - £59,800

Outbuilding - £10,240

Install an RSJ - £2,440

Build a kitchen extension - £42,240
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