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Lace Construction Ltd are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all your extensio...
Paul Mccreadie
1980 are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all your extension buildering jobs...
ABBS Building & Plastics are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all your exten...
From £1,784
Gerard & Huby Building Specialist are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all y...
From £2,152
Thorne, DN8
PASUDA BUILDINGS LTD is an established and experienced local extension builder in Thorne. Please contact us for a free, no obligation quote and com...
From £1,840
Thorne, DN8
Relax... you have found a reliable extension builder in Thorne. PASUDA BUILDINGS LTD is a friendly and reliable company based in Thorne who conside...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Thorne it ranges from £1,784 (Gerard & Huby Building Specialist based in DN14) to £2,216 (ABBS Building & Plastics based in DN14).
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 Thorne by posting a job with HaMuch and we will send it to extension builders in Thorne.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Goole | £26 | £217 |
| Install An RSJ near Doncaster | £29 | £238 |
| Install An RSJ near Selby | £30 | £240 |
| Install An RSJ near Scunthorpe | £26 | £207 |
| Install An RSJ near Pontefract | £30 | £228 |
| Install An RSJ near North Lincolnshire | £28 | £216 |
| Install An RSJ near Gainsborough | £30 | £234 |
| Install An RSJ near Castleford | £30 | £225 |
| Install An RSJ near Wickersley | £32 | £258 |
| Install An RSJ near Bassetlaw | £31 | £243 |
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 - £17,257

Two storey extension - £87,636

Build a timber frame extension - £25,757

Build a swimming pool - £80,757

Single storey extension - £50,147

Side return extension - £38,770

Install an RSJ - £1,957

Outbuilding - £9,757

Build a Mansard loft conversion - £51,757

Loft conversion - £31,475

Build a kitchen extension - £41,757

Hip to gable loft conversion - £41,757

Granny annexe - £86,757

Garden office - £9,757

Convert a Garage - £15,757

Garage - £18,257

Build a flat roof extension - £21,757

Build a dormer loft conversion - £41,757

Concrete foundations - £6,007

Convert a bungalow loft - £28,757

Convert a basement - £34,770