From £1,656
APS pointing and property maintenance offers a complete building service from small patch pointing to full refurb or extensions. Competitiv...
From £1,936
Lostock Design & Build Limited is an established and experienced local extension builder in BL5. Please contact us for a free, no obligation quote ...
From £2,248
HAROLDS CORP is a trusted extension builder serving customers in BL5 and the surrounding area. Contact us to today to get a competitive quote for e...
From £1,792
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,232
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,888
Lostock Design & Build is an established and experienced local extension builder in BL5. Please contact us for a free, no obligation quote and comp...
From £1,832
Fishers Building & Paving Ltd is an established extension buildering business in BL5. We come highly recommended and provide competitive quotes for...
From £2,240
PETER BALDWIN BUILDERS is an established extension buildering business in BL5. We come highly recommended and provide competitive quotes for your w...
From £1,960
IK MASTER BUILD LTD is an established and experienced local extension builder in BL5. Please contact us for a free, no obligation quote and competi...
From £2,008
Need an Extension Builder in BL5? CB BUILDING & JOINERY LTD has been helping local clients (20 mile radius) with their extension buildering jobs fo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in BL5 it ranges from £1,656 (Aps pointing and property maintenance based in WN2) to £2,248 (HAROLDS CORP based in WN2).
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 BL5 by posting a job with HaMuch and we will send it to extension builders in BL5.
"RSJ installation" - BOLTON, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Westhoughton | £31 | £222 |
| Install An RSJ near Atherton | £31 | £223 |
| Install An RSJ near Hindley | £30 | £218 |
| Install An RSJ near Horwich | £30 | £219 |
| Install An RSJ near Leigh | £31 | £224 |
| Install An RSJ near Bolton | £31 | £219 |
| Install An RSJ near Little Hulton | £30 | £220 |
| Install An RSJ near Farnworth | £30 | £219 |
| Install An RSJ near Wigan | £30 | £219 |
| Install An RSJ near Golborne | £30 | £222 |
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 - £17,279

Two storey extension - £87,669

Build a timber frame extension - £25,779

Build a swimming pool - £80,779

Single storey extension - £50,584

Side return extension - £39,016

Install an RSJ - £1,979

Outbuilding - £9,779

Build a Mansard loft conversion - £51,779

Loft conversion - £31,680

Build a kitchen extension - £41,779

Hip to gable loft conversion - £41,779

Granny annexe - £86,779

Garden office - £9,779

Convert a Garage - £15,779

Garage - £18,279

Build a flat roof extension - £21,779

Build a dormer loft conversion - £41,779

Concrete foundations - £6,029

Convert a bungalow loft - £28,779

Convert a basement - £35,016