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PFM General Building Services Ltd
Philip Boateg
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
Liviu Toma
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in SE2. No obligation free quotes and many hap...
Lover Build
Lover Build is an established and experienced local extension builder in SE2. Please contact us for a free, no obligation quote and competitive rat...
JASPG Construction & Design
JASPG excel in finding investment opportunities, working together with clients and partners to achieve optimal results. We project manage from star...
Danni Building Services Ltd
Pedro
Need an Extension Builder in SE2? Danni Building Services Ltd has been helping local clients (10 mile radius) with their extension buildering jobs ...
From £36,150
Great britton builders
David Britton
Relax... you have found a reliable extension builder in SE2. Great britton builders is a friendly and reliable company based in SE2 who consider no...
From £36,450
C B BUILDING CONSTRUCTION
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £36,675
Liam Kinsella Ltd
Need to find an Extension Builder near you for all your extension buildering work?
Liam Kinsella Ltd provides a local, trusted extension bu...
From £34,575
NEW BUILD MAINTENANCE LTD
Need an Extension Builder in SE2? NEW BUILD MAINTENANCE LTD has been helping local clients (10 mile radius) with their extension buildering jobs fo...
From £33,900
Roger Matharoo
Roger Matharoo
We are family run buisness with great pedigree of enginners.
We have over 40 years knowledge in construction building and are very compe...
Cheapest builders for loft conversion in SE2
Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in SE2 by posting your job to extension builders in SE2.
"Loft conversion" - ERITH, job posted 08/09/25
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Estimates for common extension builder jobs in SE2;
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 - £17,745
Two storey extension - £88,367
Build a timber frame extension - £26,245
Build a swimming pool - £81,245
Single storey extension - £59,896
Side return extension - £44,254
Install an RSJ - £2,445
Outbuilding - £10,245
Build a Mansard loft conversion - £52,245
Loft conversion - £36,045
Build a kitchen extension - £42,245
Hip to gable loft conversion - £42,245
Granny annexe - £87,245
Garden office - £10,245
Convert a Garage - £16,245
Garage - £18,745
Build a flat roof extension - £22,245
Build a dormer loft conversion - £42,245
Concrete foundations - £6,495
Convert a bungalow loft - £29,245
Convert a basement - £40,254