From £2,392
ON BUILDING LTD is a trusted extension builder serving customers in ME9 and the surrounding area. Contact us to today to get a competitive quote fo...
From £2,072
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,400
Experienced extension builder ready to quote for your work. SEAN EVANS GENERAL BUILDER is the best extension builder in ME9. No obligation free quo...
From £2,160
I D S BUILDERS LIMITED is an established extension buildering business in ME9. We come highly recommended and provide competitive quotes for your w...
From £2,072
Need an Extension Builder in ME9? Ybb has been helping local clients (20 mile radius) with their extension buildering jobs for many years. Get a qu...
From £2,112
Faryearny Building Services Ltd is an established extension buildering business in ME9. We come highly recommended and provide competitive quotes f...
From £2,152
Although only formed in 2011, we have put together a team with years of experience and in depth knowledge of the construction industry. Many of our...
From £2,168
D.E Wilson Builder Restoration & Refurbishment is an established extension buildering business in ME9. We come highly recommended and provide compe...
From £2,024
Hi we are a top professional company who put our customers first finish on time great customer service

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in ME9 it ranges from £2,024 (Mr based in ME10) to £2,400 (SEAN EVANS GENERAL BUILDER based in ME10).
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 ME9 by posting a job with HaMuch and we will send it to extension builders in ME9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Swale | £35 | £241 |
| Install An RSJ near Faversham | £34 | £235 |
| Install An RSJ near Gillingham | £39 | £253 |
| Install An RSJ near Chatham | £39 | £254 |
| Install An RSJ near Maidstone | £40 | £255 |
| Install An RSJ near Rochester | £39 | £254 |
| Install An RSJ near Larkfield | £41 | £253 |
| Install An RSJ near Whitstable | £28 | £214 |
| Install An RSJ near Canvey Island | £39 | £256 |
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 - £17,475

Two storey extension - £87,963

Build a timber frame extension - £25,975

Build a swimming pool - £80,975

Single storey extension - £54,504

Side return extension - £41,221

Install an RSJ - £2,175

Outbuilding - £9,975

Build a Mansard loft conversion - £51,975

Loft conversion - £33,518

Build a kitchen extension - £41,975

Hip to gable loft conversion - £41,975

Granny annexe - £86,975

Garden office - £9,975

Convert a Garage - £15,975

Garage - £18,475

Build a flat roof extension - £21,975

Build a dormer loft conversion - £41,975

Concrete foundations - £6,225

Convert a bungalow loft - £28,975

Convert a basement - £37,221