From £2,816
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in ME1 and the surrounding area. Contact us to today to get a comp...
From £2,120
Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in ME1. We offer a competitive rate to complete all your ...
From £2,448
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
From £2,416
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in ME1. No obligation free quotes and many hap...
From £2,456
Lover Build is an established and experienced local extension builder in ME1. Please contact us for a free, no obligation quote and competitive rat...
From £2,072
Need to find an Extension Builder near you for all your extension buildering work?
AMJAC CONSTRUCTION LTD provides a local, trusted extensi...
From £2,376
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in ME1 and the surrounding area. Contact us to today to get a co...
From £2,472
P OUGHTON BUILDING is an established and experienced local extension builder in ME1. Please contact us for a free, no obligation quote and competit...
From £1,656
Experienced extension builder ready to quote for your work. Capital Roofing Ltd is the best extension builder in ME1. No obligation free quotes and...
From £2,560
Need an Extension Builder in ME1? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in ME1 it ranges from £1,656 (Capital Roofing Ltd based in SS13) to £2,816 (HOUSE BUILDING SERVICES LIMITED based in DA16).
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 ME1 by posting a job with HaMuch and we will send it to extension builders in ME1.
"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 - £17,639

Two storey extension - £88,209

Build a timber frame extension - £26,139

Build a swimming pool - £81,139

Single storey extension - £57,784

Side return extension - £43,066

Install an RSJ - £2,339

Outbuilding - £10,139

Build a Mansard loft conversion - £52,139

Loft conversion - £35,055

Build a kitchen extension - £42,139

Hip to gable loft conversion - £42,139

Granny annexe - £87,139

Garden office - £10,139

Convert a Garage - £16,139

Garage - £18,639

Build a flat roof extension - £22,139

Build a dormer loft conversion - £42,139

Concrete foundations - £6,389

Convert a bungalow loft - £29,139

Convert a basement - £39,066