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Select your affordable York extension builder
Miles Better Construction are here to help customers who need an Extension Builder in York. We offer a competitive rate to complete all your extens...
Relax... you have found a reliable extension builder in York. Pete Nellis Builder is a friendly and reliable company based in York who consider no ...
S & P Building & Landscaping is an established and experienced local extension builder in York. Please contact us for a free, no obligation quote a...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,984
York, YO24
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,184
Graeme Freer
York, YO24
We offer excellent service and competitive prices with reliability being at the forefront of our company.
From £2,024
BridBuild ltd. is an established extension buildering business in York. We come highly recommended and provide competitive quotes for your work.
From £2,152
Need to find an Extension Builder near you for all your extension buildering work?
Sophie Brown Limited provides a local, trusted extension...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in York it ranges from £1,776 (DRA Renovations based in YO10) to £2,232 (S Thompson Ltd based in YO32).
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 York by posting a job with HaMuch and we will send it to extension builders in York.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near York | £30 | £229 |
| Install An RSJ near Selby | £30 | £240 |
| Install An RSJ near Goole | £26 | £217 |
| Install An RSJ near Harrogate | £29 | £225 |
| Install An RSJ near Castleford | £30 | £225 |
| Install An RSJ near Rothwell | £30 | £230 |
| Install An RSJ near Chapeltown | £30 | £232 |
| Install An RSJ near Pontefract | £30 | £228 |
| Install An RSJ near Leeds | £31 | £236 |
| Install An RSJ near Normanton | £30 | £233 |
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 - £17,351

Two storey extension - £87,777

Build a timber frame extension - £25,851

Build a swimming pool - £80,851

Single storey extension - £52,024

Side return extension - £39,826

Install an RSJ - £2,051

Outbuilding - £9,851

Build a Mansard loft conversion - £51,851

Loft conversion - £32,355

Build a kitchen extension - £41,851

Hip to gable loft conversion - £41,851

Granny annexe - £86,851

Garden office - £9,851

Convert a Garage - £15,851

Garage - £18,351

Build a flat roof extension - £21,851

Build a dormer loft conversion - £41,851

Concrete foundations - £6,101

Convert a bungalow loft - £28,851

Convert a basement - £35,826