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Ali Alagoz
Greater London, E17
Propello is an established and experienced local extension builder in E17. Please contact us for a free, no obligation quote and competitive rates...
UK Drywall Ltd is an established and experienced local extension builder in E17. Please contact us for a free, no obligation quote and competitive ...
London, E17
Relax... you have found a reliable extension builder in E17. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in E17 who...
Dakus Construction Ltd are here to help customers who need an Extension Builder in E17. We offer a competitive rate to complete all your extension ...
Need to find an Extension Builder near you for all your extension buildering work?
Dragan Building Construction provides a local, trusted e...
J&H Builder is a trusted extension builder serving customers in E17 and the surrounding area. Contact us to today to get a competitive quote for ex...
Walthamstow, E17
M & D BUILDING & DECORATING are here to help customers who need an Extension Builder in E17. We offer a competitive rate to complete all your exten...
MEGABUILD LTD is a trusted extension builder serving customers in E17 and the surrounding area. Contact us to today to get a competitive quote for ...
Walthamstow, E17
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Mehar Allahdeta
Experienced extension builder ready to quote for your work. Mehar builders limited is the best extension builder in E17. No obligation free quotes...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in E17 it ranges from £2,072 (Dragan Building Construction based in E10) to £3,784 (Propello based in E17).
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 E17 by posting a job with HaMuch and we will send it to extension builders in E17.
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 - £17,682

Two storey extension - £88,274

Build a timber frame extension - £26,182

Build a swimming pool - £81,182

Single storey extension - £58,648

Side return extension - £43,552

Install an RSJ - £2,382

Outbuilding - £10,182

Build a Mansard loft conversion - £52,182

Loft conversion - £35,460

Build a kitchen extension - £42,182

Hip to gable loft conversion - £42,182

Granny annexe - £87,182

Garden office - £10,182

Convert a Garage - £16,182

Garage - £18,682

Build a flat roof extension - £22,182

Build a dormer loft conversion - £42,182

Concrete foundations - £6,432

Convert a bungalow loft - £29,182

Convert a basement - £39,552