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. 

Install an RSJ cost in PE31 - Sort by rates or availability

S1 Builders Norfolk

From £2,128

(last active 20/08/26)

S1 Builders Norfolk is an established and experienced local extension builder in PE31. Please contact us for a free, no obligation quote and compet...

B & K BUILDING SERVICES

From £1,728

(last active 23/03/26)

Relax... you have found a reliable extension builder in PE31. B & K BUILDING SERVICES is a friendly and reliable company based in PE31 who consider...

ANDREW RUST BUILDING CONTRACTO

From £2,160

(last active 01/03/26)

Trusted and professional extension builder in PE31. Experienced in all extension buildering work and keeping within budget and on quote. ANDREW RUS...

WEST NORFOLK CONSTRUCTION LTD

From £1,920

(last active 28/02/26)

Trusted and professional extension builder in PE31. Experienced in all extension buildering work and keeping within budget and on quote. WEST NORFO...

Grey's Construction & Civil Engineering

From £1,912

(last active 27/02/26)

Grey's Construction & Civil Engineering is an established extension buildering business in PE31. We come highly recommended and provide competitive...

NB CONSTRUCTION (UK) LIMITED

From £1,880

(last active 27/02/26)

NB CONSTRUCTION (UK) LIMITED is an established and experienced local extension builder in PE31. Please contact us for a free, no obligation quote a...

Irvines

From £2,120

(last active 10/01/26)

Relax... you have found a reliable extension builder in PE31. Irvines is a friendly and reliable company based in PE31 who consider no job as too b...

Paul Bishop Builder

From £1,760

Paul Bishop Builder is an established extension buildering business in PE31. We come highly recommended and provide competitive quotes for your wor...

C P WELLS BUILDER

From £2,088

Relax... you have found a reliable extension builder in PE31. C P WELLS BUILDER is a friendly and reliable company based in PE31 who consider no jo...

Nu-build Norfolk Ltd

From £2,696

Need an Extension Builder in PE31? Nu-build Norfolk Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for ma...

RSJ cost in PE31

Estimates for install an rsj near PE31

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in PE31 it ranges from £1,728 (B & K BUILDING SERVICES based in PE30) to £2,696 (Nu-build Norfolk Ltd based in PE34).

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 PE31 by posting a job with HaMuch and we will send it to extension builders in PE31.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Kings Lynn & West Norfolk£31£238
Install An RSJ near King's Lynn£33£254
Install An RSJ near Dereham£25£203
Install An RSJ near Wisbech£34£255
Install An RSJ near Breckland£28£248
Install An RSJ near Boston£28£262
Install An RSJ near Broadland£24£194
Install An RSJ near Spalding£32£238
Install An RSJ near East Lindsey£27£198

Estimates for common extension builder jobs in PE31;

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...