From £2,360
Relax... you have found a reliable extension builder in Golders Green. Riverstone 13 Ltd is a friendly and reliable company based in Golders Green ...
From £2,344
Need the extension buildering job done quickly without breaking the bank? Swiftdale Developments Ltd offer fast, reliable, and affordable extension...
From £2,120
Trusted and professional extension builder in Golders Green. Experienced in all extension buildering work and keeping within budget and on quote. F...
From £2,432
When people ask us what we build, our answer is a simple one. Trust.It’s the cornerstone of any good relationship – and we know how important i...
From £2,120
Need to find an Extension Builder near you for all your extension buildering work?
Kensington Green Ltd provides a local, trusted extension...
From £2,512
London based design and build company offering global building services to private and commercial clients. Visit our portfolio at www.nk-designbuil...
From £2,280
We are a London-based residential design and build company with over 30 years of combined experience in our management team. We specialize in high-...
From £2,200
DC. Designing Centre was founded in 2017 by Daria Chmura, an interior architect with passion. Her outstanding approach to the client and her life m...
From £2,544
Relax... you have found a reliable extension builder in Golders Green. Citadel Design & Construction is a friendly and reliable company based in Go...
From £2,456
Highly skilled teamDedicated project managerFully insuredWe provide routine building control checks

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Golders Green it ranges from £2,120 (Fresh home builders UK LTD based in Nw11) to £2,544 (Citadel Design & Construction based in NW2).
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 Golders Green by posting a job with HaMuch and we will send it to extension builders in Golders Green.
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 - £17,637

Two storey extension - £88,205

Build a timber frame extension - £26,137

Build a swimming pool - £81,137

Single storey extension - £57,736

Side return extension - £43,039

Install an RSJ - £2,337

Outbuilding - £10,137

Build a Mansard loft conversion - £52,137

Loft conversion - £35,033

Build a kitchen extension - £42,137

Hip to gable loft conversion - £42,137

Granny annexe - £87,137

Garden office - £10,137

Convert a Garage - £16,137

Garage - £18,637

Build a flat roof extension - £22,137

Build a dormer loft conversion - £42,137

Concrete foundations - £6,387

Convert a bungalow loft - £29,137

Convert a basement - £39,039