From £1,984
Carl Tommons
Building from the Ground up through to fit out, new build, refurb, extension.
From £1,992
Cheshire Concrete Designs are here to help customers who need an Extension Builder in CW8. We offer a competitive rate to complete all your extens...
From £2,128
Trusted and professional extension builder in CW8. Experienced in all extension buildering work and keeping within budget and on quote. MAS CONSTRU...
From £2,256
Adedoyin Aremu Otebolaku
I'm a builder doing all kinds of jobs from driveways to extensions.
From £2,152
Chris Keyes
I have been in the construction industry for over 12 years . And done many projects. Hard working . And always keep to time .
From £2,192
Lux Projects are building contractors that cover the northwest region. We are trusted, reliable and friendly, so do not think twice about contactin...
From £1,896
Relax... you have found a reliable extension builder in CW8. McCombie Construction Ltd. is a friendly and reliable company based in CW8 who conside...
From £2,184
Experienced extension builder ready to quote for your work. Elliott Construction Service’s is the best extension builder in CW8. No obligation fr...
From £1,952
J.M.KERRUSH(BUILDERS) LTD is an established and experienced local extension builder in CW8. Please contact us for a free, no obligation quote and ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CW8 it ranges from £1,896 (McCombie Construction Ltd. based in CW8) to £2,256 (Adedoyin Otebolaku based in CW8).
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 CW8 by posting a job with HaMuch and we will send it to extension builders in CW8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Winsford | £31 | £232 |
| Install An RSJ near Runcorn | £33 | £228 |
| Install An RSJ near Warrington | £31 | £222 |
| Install An RSJ near Halton | £31 | £220 |
| Install An RSJ near Widnes | £31 | £220 |
| Install An RSJ near Crewe | £29 | £224 |
| Install An RSJ near Altrincham | £32 | £228 |
| Install An RSJ near Crewe & Nantwich | £28 | £220 |
| Install An RSJ near Ellesmere Port | £31 | £214 |
| Install An RSJ near Newton-le-Willows | £31 | £221 |
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 - £17,382

Two storey extension - £87,823

Build a timber frame extension - £25,882

Build a swimming pool - £80,882

Single storey extension - £52,636

Side return extension - £40,170

Install an RSJ - £2,082

Outbuilding - £9,882

Build a Mansard loft conversion - £51,882

Loft conversion - £32,642

Build a kitchen extension - £41,882

Hip to gable loft conversion - £41,882

Granny annexe - £86,882

Garden office - £9,882

Convert a Garage - £15,882

Garage - £18,382

Build a flat roof extension - £21,882

Build a dormer loft conversion - £41,882

Concrete foundations - £6,132

Convert a bungalow loft - £28,882

Convert a basement - £36,170