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Select your affordable RH5 extension builder
Garage Door Repairs is an established extension buildering business in RH5. We come highly recommended and provide competitive quotes for your work...
From £2,112
Experienced extension builder ready to quote for your work. Mole Valley Builders is the best extension builder in RH5. No obligation free quotes an...
From £2,368
Established in 2013, Mole Valley Builders is a family-owned, independent building company. Our team shares more than 40 years of industry experienc...
From £2,680
Stovetech Surrey are professional installers of multi-fuel and wood burning stoves.We are OFTEC registered ensuring that all of our work co...
From £2,632
Relax... you have found a reliable extension builder in RH5. Atp Building Services is a friendly and reliable company based in RH5 who consider no ...
From £2,344
Surrey Hills Construction is an established and experienced local extension builder in RH5. Please contact us for a free, no obligation quote and c...
From £2,728
Founded in 2011 by Clive Bordoli and Jim Kelting, we set out to form and lead a team of tradesmen who could share our work ethic and attention to d...
From £2,688
Our family-run building services company JGP Plastering & Brickwork Ltd was established in 2006. Since then we have been helping customers in Surre...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in RH5 it ranges from £2,112 (Mole Valley Builders based in RH5) to £2,728 (Surrey Hills Construction based in RH5).
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 RH5 by posting a job with HaMuch and we will send it to extension builders in RH5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Great Bookham | £42 | £281 |
| Install An RSJ near Reigate | £40 | £270 |
| Install An RSJ near Tadworth | £41 | £271 |
| Install An RSJ near Horley | £38 | £258 |
| Install An RSJ near Redhill | £41 | £269 |
| Install An RSJ near Reigate & Banstead | £41 | £271 |
| Install An RSJ near Epsom | £44 | £275 |
| Install An RSJ near Horsham | £38 | £265 |
| Install An RSJ near Crawley | £38 | £255 |
| Install An RSJ near Guildford | £53 | £298 |
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 - £17,792

Two storey extension - £88,437

Build a timber frame extension - £26,292

Build a swimming pool - £81,292

Single storey extension - £60,831

Side return extension - £44,780

Install an RSJ - £2,492

Outbuilding - £10,292

Build a Mansard loft conversion - £52,292

Loft conversion - £36,483

Build a kitchen extension - £42,292

Hip to gable loft conversion - £42,292

Granny annexe - £87,292

Garden office - £10,292

Convert a Garage - £16,292

Garage - £18,792

Build a flat roof extension - £22,292

Build a dormer loft conversion - £42,292

Concrete foundations - £6,542

Convert a bungalow loft - £29,292

Convert a basement - £40,780