From £2,328
STONEWALK CONSTRUCTION LTD is an established and experienced local extension builder in TA20. Please contact us for a free, no obligation quote and...
From £2,152
Experienced extension builder ready to quote for your work. ABS Abbott Preservation is the best extension builder in TA20. No obligation free quote...
From £1,672
Been installing fascia soffits for over twenty years i profide a very good service
From £2,112
Need an Extension Builder in TA20? KPM GROUNDWORKS & CONSTRUCTION has been helping local clients (20 mile radius) with their extension buildering j...
From £2,456
TOTAL BUILDING SERVICES is an established extension buildering business in TA20. We come highly recommended and provide competitive quotes for your...
From £2,056
Firestone Surfacing Ltd is a trusted extension builder serving customers in TA20 and the surrounding area. Contact us to today to get a competitive...
From £2,064
Need to find an Extension Builder near you for all your extension buildering work?
Axminster Design and Build Limited provides a local, tru...
From £2,264
Karesa Developments Ltd is a trusted extension builder serving customers in TA20 and the surrounding area. Contact us to today to get a competitive...
From £2,224
Trusted and professional extension builder in TA20. Experienced in all extension buildering work and keeping within budget and on quote. KEVIN GIBB...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in TA20 it ranges from £1,672 (Andrew Childs Fascias, Soffits & Guttering based in TA21) to £2,456 (TOTAL BUILDING SERVICES based in TA6).
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 TA20 by posting a job with HaMuch and we will send it to extension builders in TA20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Taunton | £31 | £242 |
| Install An RSJ near Yeovil | £34 | £294 |
| Install An RSJ near East Devon | £27 | £221 |
| Install An RSJ near South Somerset | £62 | £270 |
| Install An RSJ near Bridgwater | £30 | £236 |
| Install An RSJ near Tiverton | £25 | £202 |
| Install An RSJ near Dorchester | £30 | £230 |
| Install An RSJ near Exmouth | £24 | £210 |
| Install An RSJ near Weymouth | £33 | £260 |
| Install An RSJ near Exeter | £27 | £221 |
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 - £17,406

Two storey extension - £87,858

Build a timber frame extension - £25,906

Build a swimming pool - £80,906

Single storey extension - £53,112

Side return extension - £40,438

Install an RSJ - £2,106

Outbuilding - £9,906

Build a Mansard loft conversion - £51,906

Loft conversion - £32,865

Build a kitchen extension - £41,906

Hip to gable loft conversion - £41,906

Granny annexe - £86,906

Garden office - £9,906

Convert a Garage - £15,906

Garage - £18,406

Build a flat roof extension - £21,906

Build a dormer loft conversion - £41,906

Concrete foundations - £6,156

Convert a bungalow loft - £28,906

Convert a basement - £36,438