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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
After 6 years as a member of the Which? Trusted Traders scheme D.A.Elias Builders are proud to receive our latest Certificate, ensuring we...
BOOTH DESIGN AND BUILD LTD are here to help customers who need an Extension Builder in Suffolk Coastal. We offer a competitive rate to complete all...
From £1,992
Justin Doy
hi i have been a carpenter since i left school some 40 years ago, along with my step son and friend [both carpenters]we have a wide range of skills...
From £1,888
STOWE BUILDING CONTRACTORS LTD is a trusted extension builder serving customers in Suffolk Coastal and the surrounding area. Contact us to today to...
From £1,712
Need to find an Extension Builder near you for all your extension buildering work?
D.J Ruse Builders provides a local, trusted extension bu...
From £2,048
Need an Extension Builder in Suffolk Coastal? SBC Services (East Anglia) Ltd has been helping local clients (20 mile radius) with their extension b...
From £1,656
Experienced extension builder ready to quote for your work. BFG Suffolk is the best extension builder in Suffolk Coastal. No obligation free quotes...
From £1,984
Need to find an Extension Builder near you for all your extension buildering work?
Stowe Building Contractors Ltd provides a local, trusted...
From £1,984
We offer a bespoke Design & Build service whereby we can build your perfect home from scratch.• FIND THE PLOT (YOU MAY ALREADY HAVE ONE)• ASSEM...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Suffolk Coastal it ranges from £1,656 (BFG Suffolk based in IP12) to £2,160 (BOOTH DESIGN AND BUILD LTD based in IP12).
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 Suffolk Coastal by posting a job with HaMuch and we will send it to extension builders in Suffolk Coastal.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Suffolk Coastal | £28 | £215 |
| Install An RSJ near Felixstowe | £31 | £231 |
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Harwich | £34 | £248 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Waveney | £24 | £200 |
| Install An RSJ near Tendring | £31 | £226 |
| Install An RSJ near Clacton-on-Sea | £31 | £230 |
| Install An RSJ near Lowestoft | £24 | £197 |
| Install An RSJ near Colchester | £34 | £232 |
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 - £17,217

Two storey extension - £87,575

Build a timber frame extension - £25,717

Build a swimming pool - £80,717

Single storey extension - £49,336

Side return extension - £38,314

Install an RSJ - £1,917

Outbuilding - £9,717

Build a Mansard loft conversion - £51,717

Loft conversion - £31,095

Build a kitchen extension - £41,717

Hip to gable loft conversion - £41,717

Granny annexe - £86,717

Garden office - £9,717

Convert a Garage - £15,717

Garage - £18,217

Build a flat roof extension - £21,717

Build a dormer loft conversion - £41,717

Concrete foundations - £5,967

Convert a bungalow loft - £28,717

Convert a basement - £34,314