From £2,216
SMH Property Services Ltd are here to help customers who need an Extension Builder in Rochford. We offer a competitive rate to complete all your ex...
From £1,928
Rochford, SS4
Relax... you have found a reliable extension builder in Rochford. Act Builders is a friendly and reliable company based in Rochford who consider no...
From £2,208
Rochford, SS4
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £2,352
Rochford, SS4
Relax... you have found a reliable extension builder in Rochford. CLE BUILDING SERVICES LIMITED is a friendly and reliable company based in Rochfor...
From £2,072
EcoBuilders.Green Ltd is an established and experienced local extension builder in Rochford. Please contact us for a free, no obligation quote and ...
From £2,152
Rochford, SS4
Need an Extension Builder in Rochford? CONCORD BUILDERS LIMITED has been helping local clients (20 mile radius) with their extension buildering job...
From £3,032
I constructed the luxury spa at Orsett hall hotel including the swimming pool and jacuzzi in the basement. I have constructed over 100 new build ho...
From £2,160
Experienced extension builder ready to quote for your work. J R CONSTRUCTION is the best extension builder in Rochford. No obligation free quotes a...
From £2,288
Need an Extension Builder in Rochford? DM Construction Builders Ltd has been helping local clients (20 mile radius) with their extension buildering...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Rochford it ranges from £1,488 (SX Building Services Ltd based in SS4) to £3,032 (Solution building contractors LTD based in SS4).
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 Rochford by posting a job with HaMuch and we will send it to extension builders in Rochford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Southend-on-Sea | £38 | £248 |
| Install An RSJ near Rayleigh | £39 | £253 |
| Install An RSJ near Thundersley | £38 | £251 |
| Install An RSJ near Canvey Island | £39 | £256 |
| Install An RSJ near Wickford | £39 | £255 |
| Install An RSJ near Basildon | £39 | £251 |
| Install An RSJ near Maldon | £36 | £244 |
| Install An RSJ near Billericay | £38 | £248 |
| Install An RSJ near Stanford-le-Hope | £40 | £254 |
| Install An RSJ near Chelmsford | £38 | £258 |
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 - £17,490

Two storey extension - £87,984

Build a timber frame extension - £25,990

Build a swimming pool - £80,990

Single storey extension - £54,792

Side return extension - £41,383

Install an RSJ - £2,190

Outbuilding - £9,990

Build a Mansard loft conversion - £51,990

Loft conversion - £33,653

Build a kitchen extension - £41,990

Hip to gable loft conversion - £41,990

Granny annexe - £86,990

Garden office - £9,990

Convert a Garage - £15,990

Garage - £18,490

Build a flat roof extension - £21,990

Build a dormer loft conversion - £41,990

Concrete foundations - £6,240

Convert a bungalow loft - £28,990

Convert a basement - £37,383