From £88,444
Need an Extension Builder in Bermondsey? GILL BUILDING CONTRACTORS has been helping local clients (5 mile radius) with their extension buildering j...
From £87,988
Greater London, SE1
Stanrock Building Services Ltd is a trusted extension builder serving customers in Bermondsey and the surrounding area. Contact us to today to get ...
From £88,756
Combining a creative and professional approach with extensive industry experience. We offer full service packages - from high end refurbishments, t...
From £88,180
Bermondsey Greater London, SE1
Our interior design service helps people to live better through interior architecture that solves problems, anticipates their needs and creates a h...
From £88,444
Catch-all residential & commercial property maintenance and management service including intelligent A/V installation, We've focussed on SE1 for 8 ...
From £87,820
Bermondsey, SE1
Trusted and professional extension builder in Bermondsey. Experienced in all extension buildering work and keeping within budget and on quote. D & ...
From £88,300
Experienced extension builder ready to quote for your work. Space Design Construction Services Ltd is the best extension builder in Bermondsey. No ...
From £88,036
Bermondsey, SE1
Need to find an Extension Builder near you for all your extension buildering work?
AGRI CONSTRUCTION provides a local, trusted extension bu...
From £88,636
AAA Design Decorators are here to help customers who need an Extension Builder in Bermondsey. We offer a competitive rate to complete all your exte...
From £88,576
Greater London, SE1
Propia Limited is an established and experienced local extension builder in Bermondsey. Please contact us for a free, no obligation quote and compe...

Costs range from £87,820 (D & S CONSTRUCTION LTD based in SE1) to £88,756 (Stanrock Building Services Ltd based in se1), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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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 - £17,712

Two storey extension - £88,318

Build a timber frame extension - £26,212

Build a swimming pool - £81,212

Single storey extension - £59,240

Side return extension - £43,885

Install an RSJ - £2,412

Outbuilding - £10,212

Build a Mansard loft conversion - £52,212

Loft conversion - £35,738

Build a kitchen extension - £42,212

Hip to gable loft conversion - £42,212

Granny annexe - £87,212

Garden office - £10,212

Convert a Garage - £16,212

Garage - £18,712

Build a flat roof extension - £22,212

Build a dormer loft conversion - £42,212

Concrete foundations - £6,462

Convert a bungalow loft - £29,212

Convert a basement - £39,885