From £1,800
Need to find an Extension Builder near you for all your extension buildering work?
LC Building Contractors Ltd provides a local, trusted ex...
From £1,936
Relax... you have found a reliable extension builder in EX37. Garage Door Repairman is a friendly and reliable company based in EX37 who consider n...
From £1,608
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,048
Copps Property Maintenance are here to help customers who need an Extension Builder in EX37. We offer a competitive rate to complete all your exten...
From £1,568
Steve And Ray Patt Builders & Decorators is an established extension buildering business in EX37. We come highly recommended and provide competitiv...
From £1,728
Experienced extension builder ready to quote for your work. T.P Woods is the best extension builder in EX37. No obligation free quotes and many hap...
From £2,144
MAW BUILDERS is a trusted extension builder serving customers in EX37 and the surrounding area. Contact us to today to get a competitive quote for ...
From £1,848
Experienced extension builder ready to quote for your work. Taylor Made Projects is the best extension builder in EX37. No obligation free quotes a...
From £1,608
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,872
N J BOWEN BUILDING LTD is an established and experienced local extension builder in EX37. Please contact us for a free, no obligation quote and com...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EX37 it ranges from £1,568 (Steve And Ray Patt Builders & Decorators based in EX39) to £2,144 (MAW BUILDERS based in EX20).
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 EX37 by posting a job with HaMuch and we will send it to extension builders in EX37.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Barnstaple | £25 | £196 |
| Install An RSJ near Bideford | £22 | £174 |
| Install An RSJ near Tiverton | £25 | £202 |
| Install An RSJ near Exeter | £27 | £221 |
| Install An RSJ near Teignbridge | £27 | £260 |
| Install An RSJ near Exmouth | £24 | £210 |
| Install An RSJ near Vale of Glamorgan | £29 | £217 |
| Install An RSJ near Barry | £33 | £218 |
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 - £17,116

Two storey extension - £87,424

Build a timber frame extension - £25,616

Build a swimming pool - £80,616

Single storey extension - £47,320

Side return extension - £37,180

Install an RSJ - £1,816

Outbuilding - £9,616

Build a Mansard loft conversion - £51,616

Loft conversion - £30,150

Build a kitchen extension - £41,616

Hip to gable loft conversion - £41,616

Granny annexe - £86,616

Garden office - £9,616

Convert a Garage - £15,616

Garage - £18,116

Build a flat roof extension - £21,616

Build a dormer loft conversion - £41,616

Concrete foundations - £5,866

Convert a bungalow loft - £28,616

Convert a basement - £33,180