From £2,232
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in Bootle. We offer a competitive rate to complete all your ex...
From £2,256
AJ Solutions is an established extension buildering business in Bootle. We come highly recommended and provide competitive quotes for your work.
From £2,176
Nathan Thomas Plumbing is an established extension buildering business in Bootle. We come highly recommended and provide competitive quotes for you...
From £1,808
Relax... you have found a reliable extension builder in Bootle. R A C Gas is a friendly and reliable company based in Bootle who consider no job as...
From £1,896
G P Roofing & Building Service is a trusted extension builder serving customers in Bootle and the surrounding area. Contact us to today to get a co...
From £1,992
EBI BUILDING RENOVATIONS is a trusted extension builder serving customers in Bootle and the surrounding area. Contact us to today to get a competit...
From £1,888
Experienced extension builder ready to quote for your work. BURGHWOOD CONSTRUCTION LTD is the best extension builder in Bootle. No obligation free ...
From £1,728
Need an Extension Builder in Bootle? Darren Finney Builders has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £1,904
Need an Extension Builder in Bootle? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension buildering...
From £1,968
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in Bootle. We offer a competitive rate to complete all your ext...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Bootle it ranges from £1,728 (Darren Finney Builders based in PR25) to £2,256 (AJ Solutions based in CH1).
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 Bootle by posting a job with HaMuch and we will send it to extension builders in Bootle.
"RSJ installation" - LIVERPOOL, job posted 04/09/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bootle | £32 | £223 |
| Install An RSJ near Crosby | £33 | £222 |
| Install An RSJ near Liverpool | £31 | £222 |
| Install An RSJ near Wallasey | £32 | £224 |
| Install An RSJ near Sefton | £33 | £219 |
| Install An RSJ near Birkenhead | £31 | £219 |
| Install An RSJ near Kirkby | £31 | £223 |
| Install An RSJ near Maghull | £33 | £219 |
| Install An RSJ near Wirral | £31 | £219 |
| Install An RSJ near Knowsley | £31 | £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 - £17,285

Two storey extension - £87,677

Build a timber frame extension - £25,785

Build a swimming pool - £80,785

Single storey extension - £50,696

Side return extension - £39,079

Install an RSJ - £1,985

Outbuilding - £9,785

Build a Mansard loft conversion - £51,785

Loft conversion - £31,733

Build a kitchen extension - £41,785

Hip to gable loft conversion - £41,785

Granny annexe - £86,785

Garden office - £9,785

Convert a Garage - £15,785

Garage - £18,285

Build a flat roof extension - £21,785

Build a dormer loft conversion - £41,785

Concrete foundations - £6,035

Convert a bungalow loft - £28,785

Convert a basement - £35,079