From £2,544
Farnborough, GU14
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,416
Farnborough, GU14
Experienced extension builder ready to quote for your work. INSEEN CONSTRUCTION LIMITED is the best extension builder in Farnborough. No obligation...
From £2,408
MLC Building Services are here to help customers who need an Extension Builder in Farnborough. We offer a competitive rate to complete all your ext...
From £2,200
Farnborough, GU14
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,608
Assuring every job undertaken to the highest standard
Member of Which trusted traders
From £2,392
Relax... you have found a reliable extension builder in Farnborough. OAKLEA BUILDERS LTD is a friendly and reliable company based in Farnborough wh...
From £2,128
Holt Builders Ltd are here to help customers who need an Extension Builder in Farnborough. We offer a competitive rate to complete all your extensi...
From £2,512
Relax... you have found a reliable extension builder in Farnborough. PRESTIGE HOMES BUILD SERVICES is a friendly and reliable company based in Farn...
From £1,824
Dynamelec Ltd is an established and experienced local extension builder in Farnborough. Please contact us for a free, no obligation quote and compe...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Farnborough it ranges from £1,824 (Dynamelec Ltd based in GU51) to £2,608 (GR8 CONSTRUCTION AND CARPENTRY based in GU16).
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 Farnborough by posting a job with HaMuch and we will send it to extension builders in Farnborough.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Farnborough | £41 | £273 |
| Install An RSJ near Ash Vale | £41 | £277 |
| Install An RSJ near Aldershot | £41 | £275 |
| Install An RSJ near Camberley | £41 | £283 |
| Install An RSJ near Fleet | £41 | £270 |
| Install An RSJ near Sandhurst | £41 | £283 |
| Install An RSJ near Farnham | £41 | £276 |
| Install An RSJ near Bracknell | £41 | £286 |
| Install An RSJ near Bracknell Forest | £41 | £287 |
| Install An RSJ near Wokingham | £41 | £280 |
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 - £17,630

Two storey extension - £88,196

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,608

Side return extension - £42,967

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,973

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,967