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J & D Construction
Trusted and professional extension builder in SM4. Experienced in all extension buildering work and keeping within budget and on quote. J & D Const...
ACE BUILDING CONTRACTORS AND D
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
CSJ Building Services
Trusted and professional extension builder in SM4. Experienced in all extension buildering work and keeping within budget and on quote. CSJ Buildin...
Masters Property Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
You Nailed It Ltd
At You Nailed It Ltd we have been fitting bespoke bathrooms since 2008.It is a well-known fact that bathrooms sell houses. They also add a ...
Flanagan Construction Ltd
Tom Flanagan
Morden, SM4
Very experienced Builder in this area ,Epsom Sutton Raynes pk Wimbledon areas mostly now on recommendation usually also supply Drawings&a Structu...
TTG CONSTRUCTION LTD
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Racsel Building Services Ltd
Trusted and professional extension builder in SM4. Experienced in all extension buildering work and keeping within budget and on quote. Racsel Buil...
TRITON BUILDING RESTN LTD
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
RSJ cost in SM4
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SM4 it ranges from £2,136 (Masters Property Services based in SM5) to £2,704 (CSJ Building Services based in SM1).
Comparing extension builders estimates for fitting an RSJ 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 install an RSJ in SM4 by posting a job with HaMuch and we will send it to extension builders in SM4.
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Estimates for common extension builder jobs in SM4;
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 - £17,724
Two storey extension - £88,336
Build a timber frame extension - £26,224
Build a swimming pool - £81,224
Single storey extension - £59,480
Side return extension - £44,020
Install an RSJ - £2,424
Outbuilding - £10,224
Build a Mansard loft conversion - £52,224
Loft conversion - £35,850
Build a kitchen extension - £42,224
Hip to gable loft conversion - £42,224
Granny annexe - £87,224
Garden office - £10,224
Convert a Garage - £16,224
Garage - £18,724
Build a flat roof extension - £22,224
Build a dormer loft conversion - £42,224
Concrete foundations - £6,474
Convert a bungalow loft - £29,224
Convert a basement - £40,020