From £2,064
Rochester, ME1
G J Roofing Services is an established and experienced local extension builder in Rochester. Please contact us for a free, no obligation quote and ...
From £2,176
Rochester, ME1
Freeman V & Co are here to help customers who need an Extension Builder in Rochester. We offer a competitive rate to complete all your extension bu...
From £2,144
Top Form Construction are here to help customers who need an Extension Builder in Rochester. We offer a competitive rate to complete all your exten...
From £2,160
M K Builders Medway Ltd is an established extension buildering business in Rochester. We come highly recommended and provide competitive quotes for...
From £2,240
Relax... you have found a reliable extension builder in Rochester. CLEAN ROOM CONSTRUCTION LTD is a friendly and reliable company based in Rocheste...
From £2,440
AF Renovations LTD is an established and experienced local extension builder in Rochester. Please contact us for a free, no obligation quote and co...
From £2,104
Zeppelin Construction Ltd is a construction company based in Gillingham, Kent. We offer a wide range of construction services to both domestic and ...
From £2,048
Experienced extension builder ready to quote for your work. ASTA BUILDING LTD is the best extension builder in Rochester. No obligation free quotes...
From £2,280
We are a family run business with over 30 years experience in the roofing industry. We pride ourselves on our high standards of workmanship and cus...
From £2,104
Need to find an Extension Builder near you for all your extension buildering work?
Holbrook Construction provides a local, trusted extensio...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Rochester it ranges from £2,048 (ASTA BUILDING LTD based in ME2) to £2,440 (AF Renovations LTD based in Me2).
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 by posting a job with HaMuch and we will send it to extension builders in Rochester.
"RSJ installation, 203/203/46 beam length 5150mm, also digging concrete pad 900x900x 600 deep for site support post. For more information please get in touch." - RAINHAM, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Rochester | £39 | £254 |
| Install An RSJ near Chatham | £39 | £254 |
| Install An RSJ near Gillingham | £39 | £253 |
| Install An RSJ near Larkfield | £41 | £253 |
| Install An RSJ near Gravesend | £40 | £260 |
| Install An RSJ near Maidstone | £40 | £255 |
| Install An RSJ near Northfleet | £41 | £261 |
| Install An RSJ near Grays | £41 | £261 |
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Thurrock | £41 | £260 |
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 - £17,476

Two storey extension - £87,964

Build a timber frame extension - £25,976

Build a swimming pool - £80,976

Single storey extension - £54,520

Side return extension - £41,230

Install an RSJ - £2,176

Outbuilding - £9,976

Build a Mansard loft conversion - £51,976

Loft conversion - £33,525

Build a kitchen extension - £41,976

Hip to gable loft conversion - £41,976

Granny annexe - £86,976

Garden office - £9,976

Convert a Garage - £15,976

Garage - £18,476

Build a flat roof extension - £21,976

Build a dormer loft conversion - £41,976

Concrete foundations - £6,226

Convert a bungalow loft - £28,976

Convert a basement - £37,230