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Trusted and professional extension builder in Upminster. Experienced in all extension buildering work and keeping within budget and on quote. V&L C...
Upminster, RM14
CLYDESDALE CONSTRUCTION LTD is an established extension buildering business in Upminster. We come highly recommended and provide competitive quotes...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need to find an Extension Builder near you for all your extension buildering work?
KERFIELD BUILDING SERVICES LTD provides a local, trusted...
Chris Rogers
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Peter Smith
ESSEX TIMBER BUILDINGS LTD is an established extension buildering business in Upminster. We come highly recommended and provide competitive quotes ...
Trusted and professional extension builder in Upminster. Experienced in all extension buildering work and keeping within budget and on quote. M T B...
Phull Design & Build Ltd are here to help customers who need an Extension Builder in Upminster. We offer a competitive rate to complete all your ex...
Fast response for all your extension buildering needs around Upminster
Neti Construction Ltd are an established and e...
Lawrence Smith
Smiths Property Maintenance are here to help customers who need an Extension Builder in Upminster. We offer a competitive rate to complete all your...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Upminster it ranges from £2,024 (V&L Construction LTD based in rm14) to £3,272 (Smiths Property Maintenance based in RM12).
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 Upminster by posting a job with HaMuch and we will send it to extension builders in Upminster.
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 - £17,722

Two storey extension - £88,332

Build a timber frame extension - £26,222

Build a swimming pool - £81,222

Single storey extension - £59,432

Side return extension - £43,993

Install an RSJ - £2,422

Outbuilding - £10,222

Build a Mansard loft conversion - £52,222

Loft conversion - £35,828

Build a kitchen extension - £42,222

Hip to gable loft conversion - £42,222

Granny annexe - £87,222

Garden office - £10,222

Convert a Garage - £16,222

Garage - £18,722

Build a flat roof extension - £22,222

Build a dormer loft conversion - £42,222

Concrete foundations - £6,472

Convert a bungalow loft - £29,222

Convert a basement - £39,993