From £2,080
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in ME5. No obligation free quote...
From £2,264
Hyde Building Ltd are here to help customers who need an Extension Builder in ME5. We offer a competitive rate to complete all your extension build...
From £2,560
Need an Extension Builder in ME5? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
From £2,208
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £2,456
Lover Build is an established and experienced local extension builder in ME5. Please contact us for a free, no obligation quote and competitive rat...
From £2,376
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in ME5 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 ME5. 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 ME5. No obligation free quotes and...
From £2,360
Property Maintenance are here to help customers who need an Extension Builder in ME5. We offer a competitive rate to complete all your extension bu...
2 reviews
From £1,568
Hi
I'm very well rated tradesmen please check my website
See you soon
"Excellent painting skills." - MAIDSTONE,reviewed 27/03/19, TONY

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in ME5 it ranges from £1,568 (Rafs based in ME15) to £2,560 (Ellis & James Builders Limited based in SS17).
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 ME5 by posting a job with HaMuch and we will send it to extension builders in ME5.
"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 Maidstone | £40 | £255 |
| Install An RSJ near Gravesend | £40 | £260 |
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Northfleet | £41 | £261 |
| Install An RSJ near Canvey Island | £39 | £256 |
| Install An RSJ near Stanford-le-Hope | £40 | £254 |
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 - £17,500

Two storey extension - £88,000

Build a timber frame extension - £26,000

Build a swimming pool - £81,000

Single storey extension - £55,000

Side return extension - £41,500

Install an RSJ - £2,200

Outbuilding - £10,000

Build a Mansard loft conversion - £52,000

Loft conversion - £33,750

Build a kitchen extension - £42,000

Hip to gable loft conversion - £42,000

Granny annexe - £87,000

Garden office - £10,000

Convert a Garage - £16,000

Garage - £18,500

Build a flat roof extension - £22,000

Build a dormer loft conversion - £42,000

Concrete foundations - £6,250

Convert a bungalow loft - £29,000

Convert a basement - £37,500