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Select your affordable RH15 extension builder
Ferguson Building Services Limited is an established and experienced local extension builder in RH15. Please contact us for a free, no obligation q...
Reuben Sargent
Rjscarpentryconstruction is a well established company with over 30 years of experience in the carpentry and construction industries
From £1,984
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £2,264
JG Brickwork Services Limited is an established extension buildering business in RH15. We come highly recommended and provide competitive quotes fo...
From £2,008
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,312
Experienced extension builder ready to quote for your work. MRA CONSTRUCTION is the best extension builder in RH15. No obligation free quotes and m...
From £1,936
Relax... you have found a reliable extension builder in RH15. Atlas Installations is a friendly and reliable company based in RH15 who consider no ...
From £2,048
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,360
Trusted and professional extension builder in RH15. Experienced in all extension buildering work and keeping within budget and on quote. W&S BUILDI...
From £2,560
TOLLEY CARPENTRY is an established extension buildering business in RH15. We come highly recommended and provide competitive quotes for your work.<...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in RH15 it ranges from £1,936 (Atlas Installations based in RH15) to £2,800 (RJ's Carpentry Construction based in RH15).
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 RH15 by posting a job with HaMuch and we will send it to extension builders in RH15.
"RSJ installation" - HAYWARDS HEATH, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Burgess Hill | £36 | £256 |
| Install An RSJ near Haywards Heath | £35 | £256 |
| Install An RSJ near Mid Sussex | £35 | £261 |
| Install An RSJ near Brighton and Hove | £35 | £252 |
| Install An RSJ near Brighton | £35 | £253 |
| Install An RSJ near Shoreham-by-Sea | £36 | £250 |
| Install An RSJ near Horsham | £38 | £265 |
| Install An RSJ near Crawley | £38 | £255 |
| Install An RSJ near Lancing | £36 | £249 |
| Install An RSJ near East Grinstead | £37 | £259 |
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 - £17,550

Two storey extension - £88,074

Build a timber frame extension - £26,050

Build a swimming pool - £81,050

Single storey extension - £55,992

Side return extension - £42,058

Install an RSJ - £2,250

Outbuilding - £10,050

Build a Mansard loft conversion - £52,050

Loft conversion - £34,215

Build a kitchen extension - £42,050

Hip to gable loft conversion - £42,050

Granny annexe - £87,050

Garden office - £10,050

Convert a Garage - £16,050

Garage - £18,550

Build a flat roof extension - £22,050

Build a dormer loft conversion - £42,050

Concrete foundations - £6,300

Convert a bungalow loft - £29,050

Convert a basement - £38,058