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London Construction is an established and experienced local extension builder in South Kensington. Please contact us for a free, no obligation quot...
Vas Constructs
RUBBERCOVER™ EPDM Permaroof rubber cover and roof system. Lead flashing. NCTS. Timber Frame Buildings. Refurbish fit out, structural ...
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in South Kensington. QA's Pointing and Brick Repair is a friendly and reliable company based i...
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...
Relax... you have found a reliable extension builder in South Kensington. M & A UK Ltd is a friendly and reliable company based in South Kensington...
Need to find an Extension Builder near you for all your extension buildering work?
AJ Wells provides a local, trusted extension buildering ...
Newpark Construction are here to help customers who need an Extension Builder in South Kensington. We offer a competitive rate to complete all your...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in South Kensington. No oblig...
CK Constructions & Development Ltd is a trusted extension builder serving customers in South Kensington and the surrounding area. Contact us to tod...
A to Z Builders Ltd are here to help customers who need an Extension Builder in South Kensington. We offer a competitive rate to complete all your ...

A timber frame extension built in South Kensington typically ranges from £25,976 (A to Z Builders Ltd based in SW1P) to £27,840 (1st & 2nd Fix Vasconstruct based in W12), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in South Kensington by posting a job with HaMuch and we'll send it to extension builders in South Kensington.
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.

Underpin a building - £17,938

Two storey extension - £88,656

Build a timber frame extension - £26,438

Build a swimming pool - £81,438

Single storey extension - £63,752

Side return extension - £46,423

Install an RSJ - £2,638

Outbuilding - £10,438

Build a Mansard loft conversion - £52,438

Loft conversion - £37,853

Build a kitchen extension - £42,438

Hip to gable loft conversion - £42,438

Granny annexe - £87,438

Garden office - £10,438

Convert a Garage - £16,438

Garage - £18,938

Build a flat roof extension - £22,438

Build a dormer loft conversion - £42,438

Concrete foundations - £6,688

Convert a bungalow loft - £29,438

Convert a basement - £42,423