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POVERSET BUILDING COMPANY
Curtis Archer
Relax... you have found a reliable extension builder in Orpington. POVERSET BUILDING COMPANY is a friendly and reliable company based in Orpington ...
"Single storey extension" - BR2, job posted 18/11/25
MONUMENTAL CONSTRUCTION LIMITE
MONUMENTAL CONSTRUCTION LIMITE are here to help customers who need an Extension Builder in Orpington. We offer a competitive rate to complete all y...
"Bungalow loft conversion" - PETTS WOOD, job posted 28/02/25
P&k Building Ltd
Need an Extension Builder in Orpington? P&k Building Ltd has been helping local clients (10 mile radius) with their extension buildering jobs for m...
"Bungalow loft conversion" - PETTS WOOD, job posted 16/01/25
AL-KO Construction Ltd
Altin Kodra
Our building services company AL-KO Renovations was established over 12 years ago. Since then we have been helping customers in the area by providi...
Ha property services
Ha property services is an established and experienced local extension builder in Orpington. Please contact us for a free, no obligation quote and ...
ORBITAL CONSTRUCTION
Orpington, BR6
Trusted and professional extension builder in Orpington. Experienced in all extension buildering work and keeping within budget and on quote. ORBIT...
£47/hr
£293/day
Fairhaven Construction
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£41/hr
£251/day
LBS Builders
LBS Builders is an established and experienced local extension builder in Orpington. Please contact us for a free, no obligation quote and competit...
£43/hr
£260/day
Cygnus Construction
Need an Extension Builder in Orpington? Cygnus Construction has been helping local clients (10 mile radius) with their extension buildering jobs fo...
£44/hr
£274/day
Oakmore Builders Limited
Oakmore Builders Limited is a trusted extension builder serving customers in Orpington and the surrounding area. Contact us to today to get a compe...
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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 - £26,168
Garden office - £10,168
Granny annexe - £87,168
Build a flat roof extension - £22,168
Convert a Garage - £16,168
Hip to gable loft conversion - £42,168
Convert a bungalow loft - £29,168
Build a dormer loft conversion - £42,168
Build a swimming pool - £81,168
Build a Mansard loft conversion - £52,168
Concrete foundations - £6,418
Underpin a building - £17,668
Two storey extension - £88,252
Convert a basement - £39,390
Side return extension - £43,390
Loft conversion - £35,325
Garage - £18,668
Single storey extension - £58,360
Outbuilding - £10,168
Install an RSJ - £2,368
Build a kitchen extension - £42,168
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