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From £2,056
Eric Keymer
I have 20 years experience in covering all aspects of the Biulding trade.
From £2,064
Need an Extension Builder in Barrow? K T GRIDLEY GENERAL BUILDER has been helping local clients (20 mile radius) with their extension buildering jo...
From £1,944
Experienced extension builder ready to quote for your work. Brayfield Construction is the best extension builder in Barrow. No obligation free quot...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Barrow it ranges from £1,944 (Brayfield Construction based in IP33) to £2,064 (K T GRIDLEY GENERAL BUILDER based in CO10).
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 Barrow by posting a job with HaMuch and we will send it to extension builders in Barrow.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bury St Edmunds | £34 | £251 |
| Install An RSJ near Sudbury | £34 | £229 |
| Install An RSJ near Haverhill | £37 | £260 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Thetford | £42 | £277 |
| Install An RSJ near Ely | £40 | £279 |
| Install An RSJ near Braintree | £37 | £247 |
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Colchester | £34 | £232 |
| Install An RSJ near Cambridge | £41 | £275 |
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 - £17,321

Two storey extension - £87,732

Build a timber frame extension - £25,821

Build a swimming pool - £80,821

Single storey extension - £51,427

Side return extension - £39,490

Install an RSJ - £2,021

Outbuilding - £9,821

Build a Mansard loft conversion - £51,821

Loft conversion - £32,075

Build a kitchen extension - £41,821

Hip to gable loft conversion - £41,821

Granny annexe - £86,821

Garden office - £9,821

Convert a Garage - £15,821

Garage - £18,321

Build a flat roof extension - £21,821

Build a dormer loft conversion - £41,821

Concrete foundations - £6,071

Convert a bungalow loft - £28,821

Convert a basement - £35,490