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.  To see prices and availability for your job click green button.

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From £2,168

Last active Oct 26
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A S G Developments - Herts LTD

Amarjeet Gill

Architecture and Construction all in one place. 

FREE DRAWINGS for all projects we build. 

From £2,432

Last active Oct 26
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Buyerz Trading

Buyerz Trading is an established and experienced local extension builder in AL7. Please contact us for a free, no obligation quote and competitive ...

From £2,272

Last active Oct 26
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A1 Home Care Building Maintenance

A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in AL7. We offer a competitive rate to complete all your...

From £2,120

Last active Jul 26
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MA Gower

Need an Extension Builder in AL7? MA Gower has been helping local clients (20 mile radius) with their extension buildering jobs for many years. Get...

From £1,520

Last active Apr 26
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Complex Construction

Claudio Lutchi

Complex Construction is an established extension buildering business in AL7. We come highly recommended and provide competitive quotes for your wor...

From £2,624

Last active Apr 26
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PRIMEEXPERT

Wiemy jak wa?n? decyzj? dla naszych Klientów jest budowa kupno czy remont domu, dlatego stawiamy na nowoczesne i ekonomiczne rozwi?zania , a ca?? ...

From £2,160

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Interior Installations

Relax... you have found a reliable extension builder in AL7. Interior Installations is a friendly and reliable company based in AL7 who consider no...

From £2,144

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STYLE BUILDING SERVICES LTD

STYLE BUILDING SERVICES LTD are here to help customers who need an Extension Builder in AL7. We offer a competitive rate to complete all your exten...

From £2,552

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J J Roofing & Gutter Repairs

Trusted and professional extension builder in AL7. Experienced in all extension buildering work and keeping within budget and on quote. J J Roofing...

From £2,200

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J B R Contracts

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

J B R Contracts provides a local, trusted extension buil...

RSJ cost in AL7

Estimates for install an rsj near AL7

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in AL7 it ranges from £1,520 (Complex Construction based in AL7) to £2,624 (PRIMEEXPERT based in AL7).

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 AL7 by posting a job with HaMuch and we will send it to extension builders in AL7.


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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Welwyn Garden City£42£269
Install An RSJ near Hatfield£42£266
Install An RSJ near Hertford£46£290
Install An RSJ near Potters Bar£43£273
Install An RSJ near Harpenden£45£282
Install An RSJ near St Albans£43£272
Install An RSJ near Ware£47£296
Install An RSJ near Cheshunt£48£285
Install An RSJ near Stevenage£44£282
Install An RSJ near Hoddesdon£46£296

Estimates for common extension builder jobs in AL7;

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...