From £2,416
BLOCKBUILD DEVELOPMENTS LTD is an established and experienced local extension builder in Perth. Please contact us for a free, no obligation quote a...
From £2,584
We are a established company of over 30 yeats. We offer 24 hour call out service for both commercial and residential property sevices
From £2,792
Need to find an Extension Builder near you for all your extension buildering work?
Ness Construction Fife Ltd provides a local, trusted ext...
From £2,240
We have over 30yrs experience in all aspects of joinery and building work , from fitting a door to building an extension or converting a garage /at...
From £2,560
Relax... you have found a reliable extension builder in Perth. McIntosh & Kane Ames Tapers is a friendly and reliable company based in Perth who co...
From £2,584
RT Construction is an established and experienced local extension builder in Perth. Please contact us for a free, no obligation quote and competiti...
From £2,128
Experienced extension builder ready to quote for your work. Andrew Allan Builder is the best extension builder in Perth. No obligation free quotes ...
From £1,912
Hi i am first class tradesman which i will leave you 100% happy with the work carried out,i am also puncual in the mornings.never let any clients d...
From £2,600
Trusted and professional extension builder in Perth. Experienced in all extension buildering work and keeping within budget and on quote. Bell & Wh...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Perth it ranges from £1,912 (D.F.BUILDERS based in PH11) to £2,792 (Ness Construction Fife Ltd based in KY7).
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 Perth by posting a job with HaMuch and we will send it to extension builders in Perth.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Perth | £32 | £245 |
| Install An RSJ near Perth & Kinross | £32 | £245 |
| Install An RSJ near Glenrothes | £42 | £304 |
| Install An RSJ near Fife | £44 | £310 |
| Install An RSJ near Dundee | £38 | £285 |
| Install An RSJ near Kirkcaldy | £42 | £296 |
| Install An RSJ near Dunfermline | £46 | £285 |
| Install An RSJ near Alloa | £33 | £229 |
| Install An RSJ near Forfar | £29 | £236 |
| Install An RSJ near Bo'ness | £33 | £241 |
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 - £17,678

Two storey extension - £88,266

Build a timber frame extension - £26,178

Build a swimming pool - £81,178

Single storey extension - £58,552

Side return extension - £43,498

Install an RSJ - £2,378

Outbuilding - £10,178

Build a Mansard loft conversion - £52,178

Loft conversion - £35,415

Build a kitchen extension - £42,178

Hip to gable loft conversion - £42,178

Granny annexe - £87,178

Garden office - £10,178

Convert a Garage - £16,178

Garage - £18,678

Build a flat roof extension - £22,178

Build a dormer loft conversion - £42,178

Concrete foundations - £6,428

Convert a bungalow loft - £29,178

Convert a basement - £39,498