From £2,000
viking build is an established extension buildering business in DN17. We come highly recommended and provide competitive quotes for your work.
...From £2,144
Trusted and professional extension builder in DN17. Experienced in all extension buildering work and keeping within budget and on quote. Jaymi Wrig...
From £1,800
A Kemp Build is a trusted extension builder serving customers in DN17 and the surrounding area. Contact us to today to get a competitive quote for ...
From £1,680
Experienced extension builder ready to quote for your work. Northfield General Builders Ltd is the best extension builder in DN17. No obligation fr...
From £1,840
C.L.Corfield Ltd are a well estblished (1963) family run business, who take great pride in providing a quality service. Our services over the years...
From £1,840
Relax... you have found a reliable extension builder in DN17. PASUDA BUILDINGS LTD is a friendly and reliable company based in DN17 who consider no...
From £2,152
PASUDA BUILDINGS LTD is an established and experienced local extension builder in DN17. Please contact us for a free, no obligation quote and compe...
From £1,784
Gerard & Huby Building Specialist are here to help customers who need an Extension Builder in DN17. We offer a competitive rate to complete all you...
From £2,216
ABBS Building & Plastics are here to help customers who need an Extension Builder in DN17. We offer a competitive rate to complete all your extensi...
From £1,840
Relax... you have found a reliable extension builder in DN17. Gosling Builders is a friendly and reliable company based in DN17 who consider no job...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DN17 it ranges from £1,680 (Northfield General Builders Ltd based in DN17) 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 DN17 by posting a job with HaMuch and we will send it to extension builders in DN17.
"RSJ installation to support a chimney which has been removed" - DN16
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Scunthorpe | £23 | £186 |
| Install An RSJ near North Lincolnshire | £25 | £195 |
| Install An RSJ near Gainsborough | £24 | £194 |
| Install An RSJ near Goole | £24 | £196 |
| Install An RSJ near Willerby | £25 | £193 |
| Install An RSJ near Doncaster | £26 | £208 |
| Install An RSJ near Bassetlaw | £28 | £214 |
| Install An RSJ near Hull | £25 | £195 |
| Install An RSJ near Retford | £28 | £214 |
| Install An RSJ near Selby | £25 | £198 |
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 - £17,230

Two storey extension - £87,594

Build a timber frame extension - £25,730

Build a swimming pool - £80,730

Single storey extension - £49,592

Side return extension - £38,458

Install an RSJ - £1,930

Outbuilding - £9,730

Build a Mansard loft conversion - £51,730

Loft conversion - £31,215

Build a kitchen extension - £41,730

Hip to gable loft conversion - £41,730

Granny annexe - £86,730

Garden office - £9,730

Convert a Garage - £15,730

Garage - £18,230

Build a flat roof extension - £21,730

Build a dormer loft conversion - £41,730

Concrete foundations - £5,980

Convert a bungalow loft - £28,730

Convert a basement - £34,458