From £2,232
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in Nantwich. We offer a competitive rate to complete all your ...
From £1,808
Relax... you have found a reliable extension builder in Nantwich. R A C Gas is a friendly and reliable company based in Nantwich who consider no jo...
From £1,896
G P Roofing & Building Service is a trusted extension builder serving customers in Nantwich and the surrounding area. Contact us to today to get a ...
From £1,904
Need an Extension Builder in Nantwich? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension builderi...
From £1,968
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in Nantwich. We offer a competitive rate to complete all your e...
From £1,784
Experienced extension builder ready to quote for your work. Matthew Hannigan Garage Doors is the best extension builder in Nantwich. No obligation ...
From £2,216
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,848
We are a family run firm, established for 25,years
are work is first class
and we are here for any after care
only...
From £1,952
B B ROOFCARE LTD is a trusted extension builder serving customers in Nantwich and the surrounding area. Contact us to today to get a competitive qu...
From £2,296
D & K BUILDING SERVICES T/A is an established and experienced local extension builder in Nantwich. Please contact us for a free, no obligation quot...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Nantwich it ranges from £1,784 (Matthew Hannigan Garage Doors based in CH2) 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 Nantwich by posting a job with HaMuch and we will send it to extension builders in Nantwich.
"RSJ corrosion repair quote" - CREWE, job posted 07/08/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Crewe & Nantwich | £28 | £220 |
| Install An RSJ near Crewe | £29 | £224 |
| Install An RSJ near Winsford | £31 | £232 |
| Install An RSJ near Newcastle-under-Lyme | £30 | £228 |
| Install An RSJ near Congleton | £28 | £227 |
| Install An RSJ near Stoke-on-Trent | £29 | £226 |
| Install An RSJ near Chester | £32 | £220 |
| Install An RSJ near Wrexham Maelor | £34 | £261 |
| Install An RSJ near Runcorn | £33 | £228 |
| Install An RSJ near Vale Royal | £35 | £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 - £17,290

Two storey extension - £87,686

Build a timber frame extension - £25,790

Build a swimming pool - £80,790

Single storey extension - £50,808

Side return extension - £39,142

Install an RSJ - £1,990

Outbuilding - £9,790

Build a Mansard loft conversion - £51,790

Loft conversion - £31,785

Build a kitchen extension - £41,790

Hip to gable loft conversion - £41,790

Granny annexe - £86,790

Garden office - £9,790

Convert a Garage - £15,790

Garage - £18,290

Build a flat roof extension - £21,790

Build a dormer loft conversion - £41,790

Concrete foundations - £6,040

Convert a bungalow loft - £28,790

Convert a basement - £35,142