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Select your affordable Bromley extension builder
Julian Cafun
Need an Extension Builder in Bromley? Saintflexs has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
Max Dixon
We are a construction company specialising in all aspects of building works, loft construction Extension complete home renovation, structural ...
Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in Bromley. We offer a competitive rate to complete all your exte...
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
Relax... you have found a reliable extension builder in Bromley. L M G Building Services (London) Ltd is a friendly and reliable company based in B...
AAB Tile Installation & Repairs are here to help customers who need an Extension Builder in Bromley. We offer a competitive rate to complete all yo...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Rapid Bee Ltd is an established extension buildering business in Bromley. We come highly recommended and provide competitive quotes for your work.<...
Experienced extension builder ready to quote for your work. Aumosa Ltd is the best extension builder in Bromley. No obligation free quotes and many...
Bromley, BR1
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Outbuilding costs in Bromley range from the cheapest of £9,960 (Rapid Bee Ltd based in SE12) to the dearest of £10,376 (Saintflexs based in BR1), but these are just estimates.
Comparing extension builders estimates for building an outbuilding 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 an outbuilding in Bromley by posting a job with HaMuch and we will send it to extension builders.
"Outbuilding" - GREATER LONDON, job posted 01/01/70
"Outbuilding Foundations is already done of concrete, Need a quote with brick work. Need a quote only wood work" - BR1, job posted 01/01/70
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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 - £17,679

Two storey extension - £88,269

Build a timber frame extension - £26,179

Build a swimming pool - £81,179

Single storey extension - £58,584

Side return extension - £43,516

Install an RSJ - £2,379

Outbuilding - £10,179

Build a Mansard loft conversion - £52,179

Loft conversion - £35,430

Build a kitchen extension - £42,179

Hip to gable loft conversion - £42,179

Granny annexe - £87,179

Garden office - £10,179

Convert a Garage - £16,179

Garage - £18,679

Build a flat roof extension - £22,179

Build a dormer loft conversion - £42,179

Concrete foundations - £6,429

Convert a bungalow loft - £29,179

Convert a basement - £39,516