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Curtis Archer
Relax... you have found a reliable extension builder in Keston. POVERSET BUILDING COMPANY is a friendly and reliable company based in Keston who co...
Julian Cafun
Need an Extension Builder in Keston? Saintflexs has been helping local clients (10 mile radius) with their extension buildering jobs for many year...
Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in Keston. We offer a competitive rate to complete all your exten...
Relax... you have found a reliable extension builder in Keston. L M G Building Services (London) Ltd is a friendly and reliable company based in Ke...
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in Keston. No obligatio...
Vas OPetrov
QC11 LTD are here to help customers who need an Extension Builder in Keston. We offer a competitive rate to complete all your extension buildering ...
Relax... you have found a reliable extension builder in Keston. SMC Property Maintenance is a friendly and reliable company based in Keston who con...
Keston, BR2
AAB Tile Installation & Repairs are here to help customers who need an Extension Builder in Keston. We offer a competitive rate to complete all you...
Stuart Bogazzi
Working as a builder for over 20 years now.
Family run business
Can sort any problem out and help build your dreams.
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 £5,818 (Oaksure Construction based in CR0) to £6,626 (Saintflexs based in BR1) in Keston.
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 Keston 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 - £17,601

Two storey extension - £88,151

Build a timber frame extension - £26,101

Build a swimming pool - £81,101

Single storey extension - £57,016

Side return extension - £42,634

Install an RSJ - £2,301

Outbuilding - £10,101

Build a Mansard loft conversion - £52,101

Loft conversion - £34,695

Build a kitchen extension - £42,101

Hip to gable loft conversion - £42,101

Granny annexe - £87,101

Garden office - £10,101

Convert a Garage - £16,101

Garage - £18,601

Build a flat roof extension - £22,101

Build a dormer loft conversion - £42,101

Concrete foundations - £6,351

Convert a bungalow loft - £29,101

Convert a basement - £38,634