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Experienced extension builder ready to quote for your work. CW BUILDING SERVICES is the best extension builder in West Brompton. No obligation free...
London Construction is an established and experienced local extension builder in West Brompton. Please contact us for a free, no obligation quote a...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in West Brompton. QA's Pointing and Brick Repair is a friendly and reliable company based in W...
Building Vision London Ltd is a trusted extension builder serving customers in West Brompton and the surrounding area. Contact us to today to get a...
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 West Brompton. M & A UK Ltd is a friendly and reliable company based in West Brompton who c...
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 West Brompton. We offer a competitive rate to complete all your ex...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in West Brompton. No obligati...

A flat roof extension ranges from the cheapest of £22,160 (AVIB City Construction Ltd based in SW19) to the dearest of £22,448 (London Construction based in SW11), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in West Brompton by posting a job with HaMuch. We'll send it to extension builders in West Brompton.
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 - £17,775

Two storey extension - £88,413

Build a timber frame extension - £26,275

Build a swimming pool - £81,275

Single storey extension - £60,504

Side return extension - £44,596

Install an RSJ - £2,475

Outbuilding - £10,275

Build a Mansard loft conversion - £52,275

Loft conversion - £36,330

Build a kitchen extension - £42,275

Hip to gable loft conversion - £42,275

Granny annexe - £87,275

Garden office - £10,275

Convert a Garage - £16,275

Garage - £18,775

Build a flat roof extension - £22,275

Build a dormer loft conversion - £42,275

Concrete foundations - £6,525

Convert a bungalow loft - £29,275

Convert a basement - £40,596