From £1,416
Crewe, CW2
Relax... you have found a reliable extension builder in Crewe. AJM Building is a friendly and reliable company based in Crewe who consider no job a...
From £2,248
Crewe, CW1
Rik Seaton (Brickwork Specialist) is an established and experienced local extension builder in Crewe. Please contact us for a free, no obligation q...
From £1,968
Relax... you have found a reliable extension builder in Crewe. House Heroes is a friendly and reliable company based in Crewe who consider no job a...
From £2,104
Crewe, CW2
Relax... you have found a reliable extension builder in Crewe. Hough Construction is a friendly and reliable company based in Crewe who consider no...
From £1,848
Progress Construction are here to help customers who need an Extension Builder in Crewe. We offer a competitive rate to complete all your extension...
From £2,048
Experienced extension builder ready to quote for your work. BAYLEYHALL CONSTRUCTION LTD is the best extension builder in Crewe. No obligation free ...
From £2,048
Hurst Builders are here to help customers who need an Extension Builder in Crewe. We offer a competitive rate to complete all your extension builde...
From £2,168
We design, build and renovate to the highest standard. Our team is dedicated to realising your passion and making your vision our own.
From £1,944
Elliott Construction Services are here to help customers who need an Extension Builder in Crewe. We offer a competitive rate to complete all your e...
From £2,056
Relax... you have found a reliable extension builder in Crewe. MB Joinery is a friendly and reliable company based in Crewe who consider no job as ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Crewe it ranges from £1,416 (AJM Building based in CW2) to £2,248 (Rik Seaton (Brickwork Specialist) based in CW1).
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 Crewe by posting a job with HaMuch and we will send it to extension builders in Crewe.
"RSJ corrosion repair quote" - CREWE, job posted 07/08/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Crewe | £29 | £224 |
| Install An RSJ near Crewe & Nantwich | £28 | £220 |
| Install An RSJ near Winsford | £31 | £232 |
| Install An RSJ near Congleton | £28 | £227 |
| Install An RSJ near Newcastle-under-Lyme | £30 | £228 |
| Install An RSJ near Stoke-on-Trent | £29 | £226 |
| Install An RSJ near Macclesfield | £32 | £237 |
| Install An RSJ near Leek | £33 | £254 |
| Install An RSJ near Wilmslow | £31 | £230 |
| Install An RSJ near Runcorn | £33 | £228 |
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 - £17,285

Two storey extension - £87,677

Build a timber frame extension - £25,785

Build a swimming pool - £80,785

Single storey extension - £50,696

Side return extension - £39,079

Install an RSJ - £1,985

Outbuilding - £9,785

Build a Mansard loft conversion - £51,785

Loft conversion - £31,733

Build a kitchen extension - £41,785

Hip to gable loft conversion - £41,785

Granny annexe - £86,785

Garden office - £9,785

Convert a Garage - £15,785

Garage - £18,285

Build a flat roof extension - £21,785

Build a dormer loft conversion - £41,785

Concrete foundations - £6,035

Convert a bungalow loft - £28,785

Convert a basement - £35,079