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David Phelan
Please visit our web site. Www. Dapconstruction. Co . Uk to c all our work and client recommendations.
Mick Winn
All of our work is guaranteed and covered by public liability and third party insurance for £5 million, giving our customers absolute peace of min...
Our building services company Refine Property Maintenance Ltd was established in 2020. Since then we have been helping customers in and around Epso...
RM Sanwell Roofing is a trusted extension builder serving customers in New Malden and the surrounding area. Contact us to today to get a competitiv...
Trusted and professional extension builder in New Malden. Experienced in all extension buildering work and keeping within budget and on quote. CSJ ...
Albdeco Builders & Decorators Ltd is a trusted extension builder serving customers in New Malden and the surrounding area. Contact us to today to g...
Tom Flanagan
Very experienced Builder in this area ,Epsom Sutton Raynes pk Wimbledon areas mostly now on recommendation usually also supply Drawings&a Structu...
Need to find an Extension Builder near you for all your extension buildering work?
Leith All Building & Decorating provides a local, truste...
Artin Construction is an established extension buildering business in New Malden. We come highly recommended and provide competitive quotes for you...

Outbuilding costs in New Malden range from the cheapest of £9,936 (D A P CONSTRUCTION based in KT4) to the dearest of £10,504 (CSJ Building Services based in SM1), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in New Malden by posting a job with HaMuch and we will send it to extension 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 - £17,702

Two storey extension - £88,304

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,048

Side return extension - £43,777

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,648

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,777