From £6,298
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in KT2. No obligation free quotes ...
From £6,610
Relax... you have found a reliable extension builder in KT2. M & A UK Ltd is a friendly and reliable company based in KT2 who consider no job as to...
From £6,570
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in KT2. No obligation free qu...
From £6,626
CK Constructions & Development Ltd is a trusted extension builder serving customers in KT2 and the surrounding area. Contact us to today to get a c...
From £6,698
London Construction is an established and experienced local extension builder in KT2. Please contact us for a free, no obligation quote and competi...
From £6,226
A to Z Builders Ltd are here to help customers who need an Extension Builder in KT2. We offer a competitive rate to complete all your extension bui...
From £6,498
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in KT2. No obligation free quot...
From £7,866
Over 20 years experience
Client focussed and driven
Personal planning and completion of work
Warranty ...
From £6,362
Trusted and professional extension builder in KT2. Experienced in all extension buildering work and keeping within budget and on quote. D Dan Const...
From £6,674
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Concrete foundations range from the £6,226 (A to Z Builders Ltd based in SW1P) to £7,866 (GasHeat based in NW10) in KT2.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in KT2 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,893

Two storey extension - £88,589

Build a timber frame extension - £26,393

Build a swimming pool - £81,393

Single storey extension - £62,856

Side return extension - £45,919

Install an RSJ - £2,593

Outbuilding - £10,393

Build a Mansard loft conversion - £52,393

Loft conversion - £37,433

Build a kitchen extension - £42,393

Hip to gable loft conversion - £42,393

Granny annexe - £87,393

Garden office - £10,393

Convert a Garage - £16,393

Garage - £18,893

Build a flat roof extension - £22,393

Build a dormer loft conversion - £42,393

Concrete foundations - £6,643

Convert a bungalow loft - £29,393

Convert a basement - £41,919