Richie Crawley
Relax... you have found a reliable extension builder in CW1. R A C Gas is a friendly and reliable company based in CW1 who consider no job as too b...
Andy Tong
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in CW1. We offer a competitive rate to complete all your exten...
Need an Extension Builder in CW1? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension buildering jo...
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in CW1. We offer a competitive rate to complete all your extens...
Experienced extension builder ready to quote for your work. Matthew Hannigan Garage Doors is the best extension builder in CW1. No obligation free ...
Dianne Poxon
We are a family run firm, established for 25,years
are work is first class
and we are here for any after care
only...
Richard Williamson
Trusted and professional extension builder in CW1. Experienced in all extension buildering work and keeping within budget and on quote. Amberwood D...
B B ROOFCARE LTD is a trusted extension builder serving customers in CW1 and the surrounding area. Contact us to today to get a competitive quote f...
D & K BUILDING SERVICES T/A is an established and experienced local extension builder in CW1. Please contact us for a free, no obligation quote and...
Experienced extension builder ready to quote for your work. SJF Building Contractors is the best extension builder in CW1. No obligation free quote...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CW1 it ranges from £1,752 (Amberwood Design based in SK11) to £2,296 (D & K BUILDING SERVICES T/A based in ST6).
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 CW1 by posting a job with HaMuch and we will send it to extension builders in CW1.
"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 | £239 |
| 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 - £17,248

Two storey extension - £87,622

Build a timber frame extension - £25,748

Build a swimming pool - £80,748

Single storey extension - £49,960

Side return extension - £38,665

Install an RSJ - £1,948

Outbuilding - £9,748

Build a Mansard loft conversion - £51,748

Loft conversion - £31,388

Build a kitchen extension - £41,748

Hip to gable loft conversion - £41,748

Granny annexe - £86,748

Garden office - £9,748

Convert a Garage - £15,748

Garage - £18,248

Build a flat roof extension - £21,748

Build a dormer loft conversion - £41,748

Concrete foundations - £5,998

Convert a bungalow loft - £28,748

Convert a basement - £34,665