From £1,568
Need to find an Extension Builder near you for all your extension buildering work?
A-Pex Building provides a local, trusted extension build...
From £2,376
Relax... you have found a reliable extension builder in TN25. Clint Construction is a friendly and reliable company based in TN25 who consider no j...
From £1,256
35 years in the trade can Lay bricks plaster roofing wall and floor tiling
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
From £2,400
Experienced extension builder ready to quote for your work. SEAN EVANS GENERAL BUILDER is the best extension builder in TN25. No obligation free qu...
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 £2,160
I D S BUILDERS LIMITED is an established extension buildering business in TN25. We come highly recommended and provide competitive quotes for your ...
From £1,752
Small family building business reliable friendly service and very high quality of works
From £2,296
Need to find an Extension Builder near you for all your extension buildering work?
Fast Affordable Builders provides a local, trusted exten...
From £2,016
Relax... you have found a reliable extension builder in TN25. LEVEL CONSTRUCTION is a friendly and reliable company based in TN25 who consider no ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in TN25 it ranges from £1,256 (S MEGSON CONSTRUCTION based in CT5) 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 TN25 by posting a job with HaMuch and we will send it to extension builders in TN25.
"RSJ installation , 6 x 6m rsj’s" - TN23, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ashford | £36 | £256 |
| Install An RSJ near Hythe | £31 | £228 |
| Install An RSJ near Folkestone | £31 | £233 |
| Install An RSJ near Faversham | £34 | £235 |
| Install An RSJ near Canterbury | £31 | £232 |
| Install An RSJ near Swale | £35 | £241 |
| Install An RSJ near Whitstable | £28 | £214 |
| Install An RSJ near Dover | £29 | £226 |
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Herne Bay | £28 | £213 |
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 - £17,246

Two storey extension - £87,620

Build a timber frame extension - £25,746

Build a swimming pool - £80,746

Single storey extension - £49,928

Side return extension - £38,647

Install an RSJ - £1,946

Outbuilding - £9,746

Build a Mansard loft conversion - £51,746

Loft conversion - £31,373

Build a kitchen extension - £41,746

Hip to gable loft conversion - £41,746

Granny annexe - £86,746

Garden office - £9,746

Convert a Garage - £15,746

Garage - £18,246

Build a flat roof extension - £21,746

Build a dormer loft conversion - £41,746

Concrete foundations - £5,996

Convert a bungalow loft - £28,746

Convert a basement - £34,647