Gary Wilson
Reliable person 25 years experience
if you look on a website rated people and have a look at my ratings
AJ Home Improvements is an established extension buildering business in B9. We come highly recommended and provide competitive quotes for your work...
Brickfast Builders is an established extension buildering business in B9. We come highly recommended and provide competitive quotes for your work.<...
Lloyd Clarke
Need to find an Extension Builder near you for all your extension buildering work?
LC BUILDING SERVICES provides a local, trusted extension...
Relax... you have found a reliable extension builder in B9. F.I.I Building Services Ltd is a friendly and reliable company based in B9 who consider...
We are a forward thinking, award winning design and build company based in Solihull in the West Midlands. We strive to deliver the best experience ...
Trusted and professional extension builder in B9. Experienced in all extension buildering work and keeping within budget and on quote. Castlehall B...
Experienced extension builder ready to quote for your work. x10hosts is the best extension builder in B9. No obligation free quotes and many happy ...
From £1,896
Need an Extension Builder in B9? BellTrim Wood Products has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £1,632
Peter Smith
Reliable and trustworthy
Also on checkatrafe

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in B9 it ranges from £1,632 (A45 Fencing & Landscapes based in B26) to £2,184 (Brickfast Builders based in B6).
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 B9 by posting a job with HaMuch and we will send it to extension builders in B9.
"Removal of 3 walls and 3 RSJ installations to extend a kitchen. Need for a structual engineering consultation and building control approval since at least one wall will be load bearing." - BIRMINGHAM, job posted 05/05/24
"RSJ installation" - BIRMINGHAM, job posted 01/03/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Birmingham | £28 | £226 |
| Install An RSJ near Smethwick | £28 | £225 |
| Install An RSJ near Sutton Coldfield | £29 | £228 |
| Install An RSJ near Solihull | £29 | £231 |
| Install An RSJ near Oldbury | £29 | £226 |
| Install An RSJ near West Bromwich | £28 | £225 |
| Install An RSJ near Halesowen | £28 | £225 |
| Install An RSJ near Sandwell | £29 | £228 |
| Install An RSJ near Knowle | £31 | £241 |
| Install An RSJ near Rowley Regis | £29 | £225 |
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 - £17,281

Two storey extension - £87,671

Build a timber frame extension - £25,781

Build a swimming pool - £80,781

Single storey extension - £50,616

Side return extension - £39,034

Install an RSJ - £1,981

Outbuilding - £9,781

Build a Mansard loft conversion - £51,781

Loft conversion - £31,695

Build a kitchen extension - £41,781

Hip to gable loft conversion - £41,781

Granny annexe - £86,781

Garden office - £9,781

Convert a Garage - £15,781

Garage - £18,281

Build a flat roof extension - £21,781

Build a dormer loft conversion - £41,781

Concrete foundations - £6,031

Convert a bungalow loft - £28,781

Convert a basement - £35,034