From £2,192
Adrian Fowler Property Maintenance & General Building is a trusted extension builder serving customers in Glastonbury and the surrounding area. Con...
From £2,152
Experienced extension builder ready to quote for your work. ABS Abbott Preservation is the best extension builder in Glastonbury. No obligation fre...
From £2,384
Trusted and professional extension builder in Glastonbury. Experienced in all extension buildering work and keeping within budget and on quote. MIC...
From £2,424
Trusted and professional extension builder in Glastonbury. Experienced in all extension buildering work and keeping within budget and on quote. pra...
From £2,696
Experienced extension builder ready to quote for your work. Tim Stradling is the best extension builder in Glastonbury. No obligation free quotes a...
From £2,128
Need an Extension Builder in Glastonbury? Wattsfield Construction has been helping local clients (20 mile radius) with their extension buildering j...
From £2,056
Inspired Worx is a trusted extension builder serving customers in Glastonbury and the surrounding area. Contact us to today to get a competitive qu...
From £2,176
K STOBBS BUILDING CONTRACTOR is an established extension buildering business in Glastonbury. We come highly recommended and provide competitive quo...
From £2,328
Colin Clarke building:roofing has been successfully in business for 30 years. A vast amount of skills and knowledge has been gained and used to cre...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Glastonbury it ranges from £1,728 (C O JOYCE LIMITED based in BA16) to £2,696 (Tim Stradling based in TA10).
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 Glastonbury by posting a job with HaMuch and we will send it to extension builders in Glastonbury.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near South Somerset | £62 | £270 |
| Install An RSJ near Bridgwater | £30 | £236 |
| Install An RSJ near Yeovil | £34 | £294 |
| Install An RSJ near Bath | £32 | £249 |
| Install An RSJ near North Somerset | £32 | £245 |
| Install An RSJ near Frome | £33 | £263 |
| Install An RSJ near Weston-super-Mare | £33 | £253 |
| Install An RSJ near Taunton | £31 | £242 |
| Install An RSJ near Keynsham | £33 | £251 |
| Install An RSJ near Clevedon | £32 | £243 |
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 - £17,526

Two storey extension - £88,040

Build a timber frame extension - £26,026

Build a swimming pool - £81,026

Single storey extension - £55,528

Side return extension - £41,797

Install an RSJ - £2,226

Outbuilding - £10,026

Build a Mansard loft conversion - £52,026

Loft conversion - £33,998

Build a kitchen extension - £42,026

Hip to gable loft conversion - £42,026

Granny annexe - £87,026

Garden office - £10,026

Convert a Garage - £16,026

Garage - £18,526

Build a flat roof extension - £22,026

Build a dormer loft conversion - £42,026

Concrete foundations - £6,276

Convert a bungalow loft - £29,026

Convert a basement - £37,797