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.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL Dorset extension builders

Compare quotes

Compare quotes

Available extension builders in Dorset reply

Save Money

Save Money

Select an affordable extension builder

Post your job

From £2,416

Last active Oct 26
Get quotes

Hayes Landscapes

Trusted and professional extension builder in Dorset. Experienced in all extension buildering work and keeping within budget and on quote. Hayes La...

From £2,216

Last active Oct 26
Get quotes

GMS Carpentry & build

Grant Singleton

Trusted and professional extension builder in Dorset. Experienced in all extension buildering work and keeping within budget and on quote. GMS Carp...

From £3,400

Last active Oct 26
Get quotes

Wade and Son Builders

Mark Wadeson

Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concreti...

From £2,704

Last active Oct 26
Get quotes

Zeneli Builders

Hugo Zeneli

Very good all round builders all work  guarantees 

From £1,776

Last active Oct 26
Get quotes

ALWYN DOMINEY

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £2,360

Last active Oct 26
Get quotes

J.V MARSTON BUILDERS

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

J.V MARSTON BUILDERS provides a local, trusted extension...

From £2,424

Last active Oct 26
Get quotes

WR WARREN BUILDERS

Trusted and professional extension builder in Dorset. Experienced in all extension buildering work and keeping within budget and on quote. WR WARRE...

From £2,008

Last active Oct 26
Get quotes

Sky Builders

Sky Builders is a trusted extension builder serving customers in Dorset and the surrounding area. Contact us to today to get a competitive quote fo...

From £2,144

Last active Oct 26
Get quotes

C&M Roofing

Experienced extension builder ready to quote for your work. C&M Roofing is the best extension builder in Dorset. No obligation free quotes and many...

From £2,320

Last active Oct 26
Get quotes

JOSCELYNE BUILDERS

Experienced extension builder ready to quote for your work. JOSCELYNE BUILDERS is the best extension builder in Dorset. No obligation free quotes a...

RSJ cost in Dorset

Estimates for install an rsj near Dorset

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Dorset it ranges from £1,776 (ALWYN DOMINEY based in BH12) to £3,400 (Wade and Son Builders based in bh22).

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


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Bournemouth£38£257
Install An RSJ near Christchurch£36£251
Install An RSJ near Poole£38£250
Install An RSJ near New Forest£32£245
Install An RSJ near Totton£34£243
Install An RSJ near Southampton£34£243
Install An RSJ near Salisbury£35£247
Install An RSJ near Romsey£32£230
Install An RSJ near Isle of Wight£34£246
Install An RSJ near Dorchester£30£230

Estimates for common extension builder jobs in Dorset;

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...