From £2,088
Need to find an Extension Builder near you for all your extension buildering work?
Absolute Build provides a local, trusted extension build...
From £2,056
Sedgwick, LA9
Relax... you have found a reliable extension builder in Sedgwick. CHRIS ELLWOOD BUILDING CONTR is a friendly and reliable company based in Sedgwick...
From £1,960
Experienced extension builder ready to quote for your work. Helmside Building Services is the best extension builder in Sedgwick. No obligation fre...
From £2,032
Sedgwick, LA9
Relax... you have found a reliable extension builder in Sedgwick. STEPHEN FELLER (BUILDER) is a friendly and reliable company based in Sedgwick who...
From £2,584
Use our depth of knowledge in design, build, renovation and property development to realise your true one-off home.Our track record in residential ...
From £1,776
Experienced extension builder ready to quote for your work. SIMPSON CONSTRUCTION is the best extension builder in Sedgwick. No obligation free quot...
From £1,912
Trusted and professional extension builder in Sedgwick. Experienced in all extension buildering work and keeping within budget and on quote. J R S ...
From £1,928
A BAINES is an established extension buildering business in Sedgwick. We come highly recommended and provide competitive quotes for your work.
...From £2,104
Relax... you have found a reliable extension builder in Sedgwick. Wolfe Design & Build is a friendly and reliable company based in Sedgwick who con...
From £2,680
MIKE CROWE BUILDING & CONSTRUC is an established and experienced local extension builder in Sedgwick. Please contact us for a free, no obligation q...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Sedgwick it ranges from £1,776 (SIMPSON CONSTRUCTION based in LA8) to £2,680 (MIKE CROWE BUILDING & CONSTRUC based in LA12).
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 Sedgwick by posting a job with HaMuch and we will send it to extension builders in Sedgwick.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Kendal | £28 | £236 |
| Install An RSJ near Morecambe | £25 | £212 |
| Install An RSJ near Lancaster | £25 | £211 |
| Install An RSJ near Barrow-in-Furness | £25 | £204 |
| Install An RSJ near Fleetwood | £28 | £206 |
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 - £17,412

Two storey extension - £87,868

Build a timber frame extension - £25,912

Build a swimming pool - £80,912

Single storey extension - £53,240

Side return extension - £40,510

Install an RSJ - £2,112

Outbuilding - £9,912

Build a Mansard loft conversion - £51,912

Loft conversion - £32,925

Build a kitchen extension - £41,912

Hip to gable loft conversion - £41,912

Granny annexe - £86,912

Garden office - £9,912

Convert a Garage - £15,912

Garage - £18,412

Build a flat roof extension - £21,912

Build a dormer loft conversion - £41,912

Concrete foundations - £6,162

Convert a bungalow loft - £28,912

Convert a basement - £36,510