From £2,144
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 ...
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 £2,016
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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...
From £2,240
I started my business in 2008 after being employed within the property industry, consulting on designs of houses, schemes and mixes of property fo...
From £2,184
York, YO24
We offer excellent service and competitive prices with reliability being at the forefront of our company.
From £1,960
Our philosophy is born out of listening to our clients. We know how stressful and time-consuming any renovation can be, and we have developed our s...
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 £1,792
S & P Building & Landscaping is an established and experienced local extension builder in York. Please contact us for a free, no obligation quote a...
From £2,208
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...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in York it ranges from £1,792 (S & P Building & Landscaping based in YO10) to £2,240 (Sophie Brown Limited based in YO31).
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 - £17,370

Two storey extension - £87,806

Build a timber frame extension - £25,870

Build a swimming pool - £80,870

Single storey extension - £52,408

Side return extension - £40,042

Install an RSJ - £2,070

Outbuilding - £9,870

Build a Mansard loft conversion - £51,870

Loft conversion - £32,535

Build a kitchen extension - £41,870

Hip to gable loft conversion - £41,870

Granny annexe - £86,870

Garden office - £9,870

Convert a Garage - £15,870

Garage - £18,370

Build a flat roof extension - £21,870

Build a dormer loft conversion - £41,870

Concrete foundations - £6,120

Convert a bungalow loft - £28,870

Convert a basement - £36,042