From £2,296
Phoenix Building Projects is a leading building contractor based in Edinburgh with over 20 years experience in building homes, offices and commerci...
From £2,296
Experienced extension builder ready to quote for your work. VIP BUILDING SERVICES LTD is the best extension builder in KY11. No obligation free quo...
From £2,072
CARNEGIE BUILDING SERVICES LTD is a trusted extension builder serving customers in KY11 and the surrounding area. Contact us to today to get a comp...
From £336
ABLEFIFE ROOFING is a trusted extension builder serving customers in KY11 and the surrounding area. Contact us to today to get a competitive quote ...
From £2,568
Relax... you have found a reliable extension builder in KY11. KEVIN FRASER JOINERY is a friendly and reliable company based in KY11 who consider no...
From £2,416
BLOCKBUILD DEVELOPMENTS LTD is an established and experienced local extension builder in KY11. Please contact us for a free, no obligation quote an...
From £2,152
DW Builders is an established and experienced local extension builder in KY11. Please contact us for a free, no obligation quote and competitive ra...
From £2,216
Need to find an Extension Builder near you for all your extension buildering work?
BSJ Contracts Ltd provides a local, trusted extension bu...
From £2,632
Rockell & Duncan Building Services are your trusted & reliable builders in Fife. We provide all types of domestic, commercial & industrial building...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in KY11 it ranges from £336 (ABLEFIFE ROOFING based in KY12) to £2,632 (Rockell & Duncan Building Services based in KY12).
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 KY11 by posting a job with HaMuch and we will send it to extension builders in KY11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Dunfermline | £38 | £235 |
| Install An RSJ near Bo'ness | £29 | £209 |
| Install An RSJ near Broxburn | £29 | £217 |
| Install An RSJ near Livingston | £29 | £218 |
| Install An RSJ near Edinburgh | £32 | £236 |
| Install An RSJ near West Lothian | £28 | £209 |
| Install An RSJ near Grangemouth | £28 | £188 |
| Install An RSJ near Kirkcaldy | £35 | £253 |
| Install An RSJ near Glenrothes | £36 | £260 |
| Install An RSJ near Bathgate | £25 | £191 |
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 - £17,394

Two storey extension - £87,842

Build a timber frame extension - £25,894

Build a swimming pool - £80,894

Single storey extension - £52,888

Side return extension - £40,312

Install an RSJ - £2,094

Outbuilding - £9,894

Build a Mansard loft conversion - £51,894

Loft conversion - £32,760

Build a kitchen extension - £41,894

Hip to gable loft conversion - £41,894

Granny annexe - £86,894

Garden office - £9,894

Convert a Garage - £15,894

Garage - £18,394

Build a flat roof extension - £21,894

Build a dormer loft conversion - £41,894

Concrete foundations - £6,144

Convert a bungalow loft - £28,894

Convert a basement - £36,312