From £3,064
Family run business established since 2004
large or small we build them all

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Rochester-upon-medway it ranges from £3,064 (D C BUILDING SERVICES based in TD9) to £3,064 (D C BUILDING SERVICES based in TD9).
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 Rochester-upon-medway by posting a job with HaMuch and we will send it to extension builders in Rochester-upon-medway.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Scottish Borders | £35 | £287 |
| Install An RSJ near Ashington | £44 | £280 |
| Install An RSJ near Cramlington | £36 | £256 |
| Install An RSJ near Blyth | £42 | £288 |
| Install An RSJ near Longbenton | £34 | £234 |
| Install An RSJ near Newcastle Upon Tyne | £33 | £236 |
| Install An RSJ near Consett | £33 | £241 |
| Install An RSJ near Gateshead | £33 | £236 |
| Install An RSJ near Wallsend | £34 | £245 |
| Install An RSJ near Stanley | £34 | £242 |
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 - £18,364

Two storey extension - £89,296

Build a timber frame extension - £26,864

Build a swimming pool - £81,864

Single storey extension - £72,280

Side return extension - £51,220

Install an RSJ - £3,064

Outbuilding - £10,864

Build a Mansard loft conversion - £52,864

Loft conversion - £41,850

Build a kitchen extension - £42,864

Hip to gable loft conversion - £42,864

Granny annexe - £87,864

Garden office - £10,864

Convert a Garage - £16,864

Garage - £19,364

Build a flat roof extension - £22,864

Build a dormer loft conversion - £42,864

Concrete foundations - £7,114

Convert a bungalow loft - £29,864

Convert a basement - £47,220