From £1,880
Need to find an Extension Builder near you for all your extension buildering work?
Disney Building Services provides a local, trusted exten...
From £2,016
JF Brickwork is an established and experienced local extension builder in LE18. Please contact us for a free, no obligation quote and competitive r...
From £1,672
Experienced extension builder ready to quote for your work. S G CONSTRUCTION is the best extension builder in LE18. No obligation free quotes and m...
From £1,872
C & S Builders is an established extension buildering business in LE18. We come highly recommended and provide competitive quotes for your work.
From £2,024
Rockingham Construction Limited are here to help customers who need an Extension Builder in LE18. We offer a competitive rate to complete all your ...
From £1,920
Clarendon Carpentry Loft Conversions is an established extension buildering business in LE18. We come highly recommended and provide competitive qu...
From £1,776
Need to find an Extension Builder near you for all your extension buildering work?
P Newcombe provides a local, trusted extension builderin...
From £1,944
Relax... you have found a reliable extension builder in LE18. Ralston Properties ltd is a friendly and reliable company based in LE18 who consider ...
From £1,848
FALCON BUILDERS is a trusted extension builder serving customers in LE18 and the surrounding area. Contact us to today to get a competitive quote f...
From £2,136
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in LE18 it ranges from £1,672 (S G CONSTRUCTION based in LE2) to £2,136 (Osborne Building Services based in LE8).
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 LE18 by posting a job with HaMuch and we will send it to extension builders in LE18.
"RSJ installation, load bearing 6.5m, calculations required" - LE18
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Wigston | £25 | £186 |
| Install An RSJ near Oadby | £25 | £184 |
| Install An RSJ near Hamilton | £25 | £188 |
| Install An RSJ near Leicester | £25 | £188 |
| Install An RSJ near Charnwood | £28 | £210 |
| Install An RSJ near Hinckley | £24 | £189 |
| Install An RSJ near Market Harborough | £26 | £180 |
| Install An RSJ near Loughborough | £27 | £222 |
| Install An RSJ near Coalville | £26 | £198 |
| Install An RSJ near Melton Mowbray | £28 | £199 |
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 - £17,209

Two storey extension - £87,563

Build a timber frame extension - £25,709

Build a swimming pool - £80,709

Single storey extension - £49,176

Side return extension - £38,224

Install an RSJ - £1,909

Outbuilding - £9,709

Build a Mansard loft conversion - £51,709

Loft conversion - £31,020

Build a kitchen extension - £41,709

Hip to gable loft conversion - £41,709

Granny annexe - £86,709

Garden office - £9,709

Convert a Garage - £15,709

Garage - £18,209

Build a flat roof extension - £21,709

Build a dormer loft conversion - £41,709

Concrete foundations - £5,959

Convert a bungalow loft - £28,709

Convert a basement - £34,224