From £2,264
Our building services company Gilson Construction have thirty years’ experience and have been helping customers in Kent and the surrounding area ...
From £1,752
Small family building business reliable friendly service and very high quality of works
From £1,256
35 years in the trade can Lay bricks plaster roofing wall and floor tiling
From £2,120
Modularr is an established and experienced local extension builder in CT6. Please contact us for a free, no obligation quote and competitive rates....
From £1,512
All building work , all hoyse maintenance. House extension and refurbishment works.
From £1,704
Christian Builders Margate Ltd is an established and experienced local extension builder in CT6. Please contact us for a free, no obligation quote ...
From £2,024
Christian Builders Margate Ltd is a multi-service company founded by Nick Christian. We operate with a highly skilled team of designers, tradesmen,...
From £2,088
Trusted and professional extension builder in CT6. Experienced in all work and keeping within budget and on quote. SMB Builders have many happy cu...
From £1,960
I D Smith Construction Services Ltd is an established and experienced local extension builder in CT6. Please contact us for a free, no obligation q...
From £2,008
Justin Collins Building Services are here to help customers who need an Extension Builder in CT6. We offer a competitive rate to complete all your ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CT6 it ranges from £1,256 (S MEGSON CONSTRUCTION based in CT5) to £2,264 (Gilson Construction based in CT6).
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 CT6 by posting a job with HaMuch and we will send it to extension builders in CT6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Herne Bay | £24 | £184 |
| Install An RSJ near Whitstable | £24 | £184 |
| Install An RSJ near Canterbury | £28 | £211 |
| Install An RSJ near Thanet | £24 | £187 |
| Install An RSJ near Faversham | £31 | £211 |
| Install An RSJ near Margate | £24 | £187 |
| Install An RSJ near Ramsgate | £24 | £187 |
| Install An RSJ near Broadstairs | £24 | £187 |
| Install An RSJ near Swale | £31 | £214 |
| Install An RSJ near Deal | £22 | £174 |
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 - £17,169

Two storey extension - £87,503

Build a timber frame extension - £25,669

Build a swimming pool - £80,669

Single storey extension - £48,376

Side return extension - £37,774

Install an RSJ - £1,869

Outbuilding - £9,669

Build a Mansard loft conversion - £51,669

Loft conversion - £30,645

Build a kitchen extension - £41,669

Hip to gable loft conversion - £41,669

Granny annexe - £86,669

Garden office - £9,669

Convert a Garage - £15,669

Garage - £18,169

Build a flat roof extension - £21,669

Build a dormer loft conversion - £41,669

Concrete foundations - £5,919

Convert a bungalow loft - £28,669

Convert a basement - £33,774