From £2,328
STONEWALK CONSTRUCTION LTD is an established and experienced local extension builder in TA11. Please contact us for a free, no obligation quote and...
From £1,968
Trusted and professional extension builder in TA11. Experienced in all extension buildering work and keeping within budget and on quote. Jeremy Bly...
From £2,384
Trusted and professional extension builder in TA11. Experienced in all extension buildering work and keeping within budget and on quote. MICHAEL PA...
From £2,936
An experienced quality tradesman who is a member of the federation of master builders.
Any projects will be undertaken safely, professio...
From £2,152
Experienced extension builder ready to quote for your work. ABS Abbott Preservation is the best extension builder in TA11. No obligation free quote...
From £2,456
TOTAL BUILDING SERVICES is an established extension buildering business in TA11. We come highly recommended and provide competitive quotes for your...
From £2,056
Firestone Surfacing Ltd is a trusted extension builder serving customers in TA11 and the surrounding area. Contact us to today to get a competitive...
From £2,224
Trusted and professional extension builder in TA11. Experienced in all extension buildering work and keeping within budget and on quote. KEVIN GIBB...
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 TA11 it ranges from £1,728 (C O JOYCE LIMITED based in BA16) to £2,936 (WMP Builders based in TA9).
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 TA11 by posting a job with HaMuch and we will send it to extension builders in TA11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near South Somerset | £62 | £270 |
| Install An RSJ near Yeovil | £34 | £294 |
| Install An RSJ near Bridgwater | £30 | £236 |
| Install An RSJ near Taunton | £31 | £242 |
| Install An RSJ near Frome | £33 | £263 |
| Install An RSJ near Bath | £32 | £249 |
| Install An RSJ near North Somerset | £32 | £245 |
| Install An RSJ near Weston-super-Mare | £33 | £253 |
| 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 - £17,556

Two storey extension - £88,084

Build a timber frame extension - £26,056

Build a swimming pool - £81,056

Single storey extension - £56,120

Side return extension - £42,130

Install an RSJ - £2,256

Outbuilding - £10,056

Build a Mansard loft conversion - £52,056

Loft conversion - £34,275

Build a kitchen extension - £42,056

Hip to gable loft conversion - £42,056

Granny annexe - £87,056

Garden office - £10,056

Convert a Garage - £16,056

Garage - £18,556

Build a flat roof extension - £22,056

Build a dormer loft conversion - £42,056

Concrete foundations - £6,306

Convert a bungalow loft - £29,056

Convert a basement - £38,130