Ireneusz Pawelek
Eric Handyman- builder is an established and experienced local extension builder in CB6. Please contact us for a free, no obligation quote and comp...
Need to find an Extension Builder near you for all your extension buildering work?
A Sindall Building provides a local, trusted extension b...
Relax... you have found a reliable extension builder in CB6. Fantastic Finishing is a friendly and reliable company based in CB6 who consider no jo...
From £2,336
Paul Frost
Need to find an Extension Builder near you for all your extension buildering work?
B S V CONSTRUCTION SER LTD provides a local, trusted ext...
From £2,056
TAYLOR DRIVER CONSTRUCTION LTD is a trusted extension builder serving customers in CB6 and the surrounding area. Contact us to today to get a compe...
From £2,496
Relax... you have found a reliable extension builder in CB6. Foreman + Hill is a friendly and reliable company based in CB6 who consider no job as ...
From £2,216
Trusted and professional extension builder in CB6. Experienced in all extension buildering work and keeping within budget and on quote. PAUL BARROW...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CB6 it ranges from £2,056 (TAYLOR DRIVER CONSTRUCTION LTD based in CB6) to £2,496 (Foreman + Hill based in Cb7).
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 CB6 by posting a job with HaMuch and we will send it to extension builders in CB6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ely | £40 | £279 |
| Install An RSJ near Cambridge | £38 | £271 |
| Install An RSJ near Huntingdon | £38 | £284 |
| Install An RSJ near Wisbech | £34 | £255 |
| Install An RSJ near South Cambridgeshire | £43 | £305 |
| Install An RSJ near Huntingdonshire | £36 | £290 |
| Install An RSJ near Thetford | £42 | £277 |
| Install An RSJ near Peterborough | £40 | £281 |
| Install An RSJ near St Neots | £51 | £318 |
| Install An RSJ near Bury St Edmunds | £34 | £251 |
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 - £17,593

Two storey extension - £88,139

Build a timber frame extension - £26,093

Build a swimming pool - £81,093

Single storey extension - £56,851

Side return extension - £42,541

Install an RSJ - £2,293

Outbuilding - £10,093

Build a Mansard loft conversion - £52,093

Loft conversion - £34,618

Build a kitchen extension - £42,093

Hip to gable loft conversion - £42,093

Granny annexe - £87,093

Garden office - £10,093

Convert a Garage - £16,093

Garage - £18,593

Build a flat roof extension - £22,093

Build a dormer loft conversion - £42,093

Concrete foundations - £6,343

Convert a bungalow loft - £29,093

Convert a basement - £38,541