From £2,600
TT Building & Roofing is an established extension buildering business in RG30. We come highly recommended and provide competitive quotes for your w...
From £2,360
Need an Extension Builder in RG30? UNITED BUILDING SERVICES has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £2,176
J.L Building Services are here to help customers who need an Extension Builder in RG30. We offer a competitive rate to complete all your extension ...
From £1,608
We are a respected building company that takes pride in our work . We have been trades people for 35 years. We will work with you on any projects. ...
From £2,184
Relax... you have found a reliable extension builder in RG30. A R Construction is a friendly and reliable company based in RG30 who consider no job...
From £2,672
Experienced extension builder ready to quote for your work. Inspiral is the best extension builder in RG30. No obligation free quotes and many happ...
From £2,280
Experienced extension builder ready to quote for your work. SW Construction is the best extension builder in RG30. No obligation free quotes and ma...
From £2,440
Relax... you have found a reliable extension builder in RG30. Borges Builders is a friendly and reliable company based in RG30 who consider no job ...
From £2,176
Trusted and professional extension builder in RG30. Experienced in all extension buildering work and keeping within budget and on quote. Tower Carp...
From £2,352
Trusted and professional extension builder in RG30. Experienced in all extension buildering work and keeping within budget and on quote. BOSTON BUI...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in RG30 it ranges from £1,608 (Turner Trades based in RG30) to £2,672 (Inspiral based in RG30).
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 RG30 by posting a job with HaMuch and we will send it to extension builders in RG30.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Reading | £36 | £230 |
| Install An RSJ near Caversham | £33 | £229 |
| Install An RSJ near Woodley | £37 | £232 |
| Install An RSJ near Wokingham | £35 | £241 |
| Install An RSJ near Thatcham | £33 | £229 |
| Install An RSJ near Bracknell Forest | £35 | £248 |
| Install An RSJ near Bracknell | £35 | £248 |
| Install An RSJ near Sandhurst | £35 | £242 |
| Install An RSJ near Basingstoke & Deane | £33 | £231 |
| Install An RSJ near Basingstoke | £33 | £232 |
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 - £17,585

Two storey extension - £88,127

Build a timber frame extension - £26,085

Build a swimming pool - £81,085

Single storey extension - £56,696

Side return extension - £42,454

Install an RSJ - £2,285

Outbuilding - £10,085

Build a Mansard loft conversion - £52,085

Loft conversion - £34,545

Build a kitchen extension - £42,085

Hip to gable loft conversion - £42,085

Granny annexe - £87,085

Garden office - £10,085

Convert a Garage - £16,085

Garage - £18,585

Build a flat roof extension - £22,085

Build a dormer loft conversion - £42,085

Concrete foundations - £6,335

Convert a bungalow loft - £29,085

Convert a basement - £38,454