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Red Box Maintenance Ltd
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...
"Flat roof extension for a period mews terraced house. We'd like a bedroom extension with full bathroom and a roof top terrace. Footprint is roughly 8.5m x 6m." - W6, job posted 06/10/24
M & A UK Ltd
Relax... you have found a reliable extension builder in West Kensington. M & A UK Ltd is a friendly and reliable company based in West Kensington w...
"Mansard loft conversion" - SHEPHERD'S BUSH, job posted 26/09/24
AJ Wells
Need to find an Extension Builder near you for all your extension buildering work?
AJ Wells provides a local, trusted extension buildering ...
"Basement conversion" - W4, job posted 07/08/23
Newpark Construction
Newpark Construction are here to help customers who need an Extension Builder in West Kensington. We offer a competitive rate to complete all your ...
HUGHES BUILDERS
Experienced extension builder ready to quote for your work. HUGHES BUILDERS is the best extension builder in West Kensington. No obligation free qu...
Heaven Sent Construction
Need to find an Extension Builder near you for all your extension buildering work?
Heaven Sent Construction provides a local, trusted exten...
H G Builders
H G Builders is an established and experienced local extension builder in West Kensington. Please contact us for a free, no obligation quote and co...
Graham Construction
Graham Construction is an established extension buildering business in West Kensington. We come highly recommended and provide competitive quotes f...
Specialist Screeding
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Phormwork
Phormwork are here to help customers who need an Extension Builder in West Kensington. We offer a competitive rate to complete all your extension b...
Koncept Bathrooms
Need an Extension Builder in West Kensington? Koncept Bathrooms has been helping local clients (5 mile radius) with their extension buildering jobs...
JNJ Building Services Ltd
Experienced extension builder ready to quote for your work. JNJ Building Services Ltd is the best extension builder in West Kensington. No obligati...
TELEMARK CONSTRUCTION LTD
TELEMARK CONSTRUCTION LTD is a trusted extension builder serving customers in West Kensington and the surrounding area. Contact us to today to get ...
£42/hr
£262/day
Leon
Leon is an established and experienced local extension builder in West Kensington. Please contact us for a free, no obligation quote and competitiv...
£47/hr
£292/day
Smart Property Sourcing
Smart Property Sourcing is a trusted extension builder serving customers in West Kensington and the surrounding area. Contact us to today to get a ...
£48/hr
£299/day
Darlo Ltd
Darlo Ltd has over 20 years of constructing, refurbishing and transforming buildings for home-owners and commercial clients. We offer a one stop so...
£50/hr
£311/day
K & S
At K&S Interiors Ltd, we offer complete interior and exterior specialising in full home or office refurbishment to clients in Kensington, Chelsea a...
£49/hr
£304/day
Clay Design & Build
Welcome to Clay. We’re a design and build atelier dedicated to transforming our clients’ spaces. Through a bespoke approach, we create designs ...
£45/hr
£282/day
Vyas Design
Need to find an Extension Builder near you for all your extension buildering work?
Vyas Design provides a local, trusted extension builderi...
£41/hr
£253/day
FrontierstroyUK
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Quickly find an Extension Builder in West Kensington
Use these steps to find Extension Builders in West Kensington for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in West Kensington. 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 West Kensington 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 - £26,208

Garden office - £10,208

Granny annexe - £87,208

Build a flat roof extension - £22,208

Convert a Garage - £16,208

Hip to gable loft conversion - £42,208

Convert a bungalow loft - £29,208

Build a dormer loft conversion - £42,208

Build a swimming pool - £81,208

Build a Mansard loft conversion - £52,208

Concrete foundations - £6,458

Underpin a building - £17,708

Two storey extension - £88,312

Convert a basement - £39,840

Side return extension - £43,840

Loft conversion - £35,700

Garage - £18,708

Single storey extension - £59,160

Outbuilding - £10,208

Install an RSJ - £2,408

Build a kitchen extension - £42,208
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