From £6,202
Cobham, KT11
Integral Builders Ltd is an established extension buildering business in KT11. We come highly recommended and provide competitive quotes for your w...
From £6,730
New build, complete refurbishment and renovation service. We provide a quality turnkey service in Central London , South West London
From £6,610
Surrey, KT11
Cobham based design and build company.For further details email: Info@
From £6,194
Relax... you have found a reliable extension builder in KT11. LINDSEY BUILDERS (KINGSTON)LTD is a friendly and reliable company based in KT11 who c...
From £6,434
Surrey, KT11
We are a sustainable construction company who conduct property refurbishments. We believe there is a better way to do construction with an emphasis...
From £6,522
Need to find an Extension Builder near you for all your extension buildering work?
Living Oak provides a local, trusted extension builderin...
From £6,394
Surrey, KT11
Experienced extension builder ready to quote for your work. Charybdis Developments Ltd is the best extension builder in KT11. No obligation free qu...
From £6,490
Trusted and professional extension builder in KT11. Experienced in all extension buildering work and keeping within budget and on quote. TIMBERED B...
From £6,474
Need to find an Extension Builder near you for all your extension buildering work?
K Lineage provides a local, trusted extension buildering...
From £6,802
Need to find an Extension Builder near you for all your extension buildering work?
Jaswal Design & Build provides a local, trusted extensio...

Concrete foundations range from the £6,194 (LINDSEY BUILDERS (KINGSTON)LTD based in KT11) to £6,802 (Jaswal Design & Build based in KT12) in KT11.
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 KT11 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 - £17,735

Two storey extension - £88,353

Build a timber frame extension - £26,235

Build a swimming pool - £81,235

Single storey extension - £59,704

Side return extension - £44,146

Install an RSJ - £2,435

Outbuilding - £10,235

Build a Mansard loft conversion - £52,235

Loft conversion - £35,955

Build a kitchen extension - £42,235

Hip to gable loft conversion - £42,235

Granny annexe - £87,235

Garden office - £10,235

Convert a Garage - £16,235

Garage - £18,735

Build a flat roof extension - £22,235

Build a dormer loft conversion - £42,235

Concrete foundations - £6,485

Convert a bungalow loft - £29,235

Convert a basement - £40,146