We send your job to ALL CT5 extension builders
Available extension builders in CT5 reply
Select your affordable CT5 extension builder
Simon Megson
35 years in the trade can Lay bricks plaster roofing wall and floor tiling
Daniel Hart
Small family building business reliable friendly service and very high quality of works
From £2,240
\nMorgan and Smith was created in 2017 after seeing a gap in the market for a more personal service. Too often, we saw customers feeling disconnect...
From £2,264
Our building services company Gilson Construction have thirty years’ experience and have been helping customers in Kent and the surrounding area ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CT5 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 CT5 by posting a job with HaMuch and we will send it to extension builders in CT5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Whitstable | £28 | £214 |
| Install An RSJ near Herne Bay | £28 | £213 |
| Install An RSJ near Canterbury | £31 | £232 |
| Install An RSJ near Faversham | £34 | £235 |
| Install An RSJ near Swale | £35 | £241 |
| Install An RSJ near Sittingbourne | £35 | £246 |
| Install An RSJ near Thanet | £27 | £207 |
| Install An RSJ near Margate | £27 | £208 |
| Install An RSJ near Ramsgate | £27 | £208 |
| Install An RSJ near Ashford | £36 | £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 - £17,178

Two storey extension - £87,517

Build a timber frame extension - £25,678

Build a swimming pool - £80,678

Single storey extension - £48,560

Side return extension - £37,878

Install an RSJ - £1,878

Outbuilding - £9,678

Build a Mansard loft conversion - £51,678

Loft conversion - £30,731

Build a kitchen extension - £41,678

Hip to gable loft conversion - £41,678

Granny annexe - £86,678

Garden office - £9,678

Convert a Garage - £15,678

Garage - £18,178

Build a flat roof extension - £21,678

Build a dormer loft conversion - £41,678

Concrete foundations - £5,928

Convert a bungalow loft - £28,678

Convert a basement - £33,878