From £2,384
Experienced extension builder ready to quote for your work. WILD CONSTRUCTION LTD is the best extension builder in DT6. No obligation free quotes a...
From £2,328
M J MUDFORD BUILDG CONTRACTOR is a trusted extension builder serving customers in DT6 and the surrounding area. Contact us to today to get a compet...
From £2,688
Trusted and professional extension builder in DT6. Experienced in all extension buildering work and keeping within budget and on quote. Mew Develop...
From £2,224
Experienced extension builder ready to quote for your work. LYME BAY BUILDING CO LTD is the best extension builder in DT6. No obligation free quote...
From £2,280
CMH Leadwork & Roofing Services Ltd is a trusted extension builder serving customers in DT6 and the surrounding area. Contact us to today to get a ...
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 £2,272
Our building services company MDP Building Contractors has over 30 years of experience of helping customers in Yeovil and the surrounding area by p...
From £2,272
Need to find an Extension Builder near you for all your extension buildering work?
CB Construction provides a local, trusted extension buil...
From £2,184
Professional personnel local service with personally over 30 years in trade and word of mouth customers within a 25mile radius. Strive to giv...
From £1,896
Trusted and professional extension builder in DT6. Experienced in all extension buildering work and keeping within budget and on quote. Stuart's Bu...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DT6 it ranges from £1,896 (Stuart's Building and Maintenance based in DT2) to £2,688 (Mew Developments Ltd based in DT7).
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 DT6 by posting a job with HaMuch and we will send it to extension builders in DT6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Dorchester | £30 | £230 |
| Install An RSJ near Yeovil | £34 | £294 |
| Install An RSJ near Weymouth | £33 | £260 |
| Install An RSJ near South Somerset | £62 | £270 |
| Install An RSJ near East Devon | £27 | £221 |
| Install An RSJ near Taunton | £31 | £242 |
| Install An RSJ near Bridgwater | £30 | £236 |
| Install An RSJ near Exmouth | £24 | £210 |
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 - £17,559

Two storey extension - £88,089

Build a timber frame extension - £26,059

Build a swimming pool - £81,059

Single storey extension - £56,184

Side return extension - £42,166

Install an RSJ - £2,259

Outbuilding - £10,059

Build a Mansard loft conversion - £52,059

Loft conversion - £34,305

Build a kitchen extension - £42,059

Hip to gable loft conversion - £42,059

Granny annexe - £87,059

Garden office - £10,059

Convert a Garage - £16,059

Garage - £18,559

Build a flat roof extension - £22,059

Build a dormer loft conversion - £42,059

Concrete foundations - £6,309

Convert a bungalow loft - £29,059

Convert a basement - £38,166