Find a builder to make your building structurally sound

RSJs support your new extension or other construction to ensure that your property is structurally sound. They are crucial parts of your building work that mustn't be ignored, and must be installed by a professional. 

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Install an RSJ cost in B8

AJ Home Improvements

From £1,904

AJ Home Improvements is an established extension buildering business in B8. We come highly recommended and provide competitive quotes for your work...

Probuild360

From £1,904

Trusted and professional extension builder in B8. Experienced in all extension buildering work and keeping within budget and on quote. Probuild360 ...

LC BUILDING SERVICES

From £2,064

Need to find an Extension Builder near you for all your extension buildering work?

LC BUILDING SERVICES provides a local, trusted extension...

x10hosts

From £2,120

Experienced extension builder ready to quote for your work. x10hosts is the best extension builder in B8. No obligation free quotes and many happy ...

G Wilson Building & Roofing Services

From £2,024

Reliable person 25 years experience 

if you look on a website rated people and have a look at my ratings 

Brickfast Builders

From £2,184

Brickfast Builders is an established extension buildering business in B8. We come highly recommended and provide competitive quotes for your work.<...

Laurence Cox

From £1,896

Laurence Cox is an established and experienced local extension builder in B8. Please contact us for a free, no obligation quote and competitive rat...

Dayfos Properties Ltd

From £2,184

Need to find an Extension Builder near you for all your extension buildering work?

Dayfos Properties Ltd provides a local, trusted extensio...

Fletchers Building & Maintenance, Ltd.

From £2,184

Fletcher's Building & Maintenance are a family owned business that understands, in order to achieve our continued success our customers and the...

Renka

From £1,840

Renka is an established and experienced local extension builder in B8. Please contact us for a free, no obligation quote and competitive rates. Cov...

RSJ cost in B8

Estimates for install an rsj near B8

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in B8 it ranges from £1,840 (Renka based in B19) 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 B8 by posting a job with HaMuch and we will send it to extension builders in B8.

"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


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Estimates for common extension builder jobs in B8;

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.

More extensions & conversions cost guides...