From £1,672
Trusted and professional extension builder in L30. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £2,080
Need to find an Extension Builder near you for all your extension buildering work?
Sbetts Building provides a local, trusted extension buil...
From £1,968
Relax... you have found a reliable extension builder in L30. KM Building Services is a friendly and reliable company based in L30 who consider no j...
From £1,776
BTC Bernstef Ltd is an established extension buildering business in L30. We come highly recommended and provide competitive quotes for your work.
From £2,224
Red Avex Ltd are here to help customers who need an Extension Builder in L30. We offer a competitive rate to complete all your extension buildering...
From £1,912
PARKFIELD CONSTRUCTION LTD is an established extension buildering business in L30. We come highly recommended and provide competitive quotes for yo...
From £1,960
CJ Construction are here to help customers who need an Extension Builder in L30. We offer a competitive rate to complete all your extension builder...
From £2,104
Need an Extension Builder in L30? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £232
Need an Extension Builder in L30? T&T Building Contractors has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £2,136
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in L30. No obligation free quotes...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in L30 it ranges from £232 (T&T Building Contractors based in L23) to £2,224 (Red Avex Ltd based in L10).
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 L30 by posting a job with HaMuch and we will send it to extension builders in L30.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Crosby | £33 | £222 |
| Install An RSJ near Bootle | £32 | £223 |
| Install An RSJ near Maghull | £33 | £219 |
| Install An RSJ near Sefton | £33 | £219 |
| Install An RSJ near Kirkby | £31 | £223 |
| Install An RSJ near Liverpool | £31 | £222 |
| Install An RSJ near Wallasey | £32 | £224 |
| Install An RSJ near Ormskirk | £29 | £206 |
| Install An RSJ near Formby | £23 | £162 |
| Install An RSJ near Birkenhead | £31 | £219 |
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 - £17,106

Two storey extension - £87,410

Build a timber frame extension - £25,606

Build a swimming pool - £80,606

Single storey extension - £47,128

Side return extension - £37,072

Install an RSJ - £1,806

Outbuilding - £9,606

Build a Mansard loft conversion - £51,606

Loft conversion - £30,060

Build a kitchen extension - £41,606

Hip to gable loft conversion - £41,606

Granny annexe - £86,606

Garden office - £9,606

Convert a Garage - £15,606

Garage - £18,106

Build a flat roof extension - £21,606

Build a dormer loft conversion - £41,606

Concrete foundations - £5,856

Convert a bungalow loft - £28,606

Convert a basement - £33,072