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M B Building & Construction Ltd is a trusted extension builder serving customers in Worplesdon and the surrounding area. Contact us to today to get...
Experienced extension builder ready to quote for your work. ADW Roofing Services is the best extension builder in Worplesdon. No obligation free qu...
Ayling & Sons Roofing Ltd is an established and experienced local extension builder in Worplesdon. Please contact us for a free, no obligation quot...
Need to find an Extension Builder near you for all your extension buildering work?
Chim Me Sweep Chim Me Build provides a local, trusted ex...
Relax... you have found a reliable extension builder in Worplesdon. DILCONSI CONSTRUCTION is a friendly and reliable company based in Worplesdon wh...
Aerea is a trusted extension builder serving customers in Worplesdon and the surrounding area. Contact us to today to get a competitive quote for e...
Holt Builders Ltd are here to help customers who need an Extension Builder in Worplesdon. We offer a competitive rate to complete all your extensio...
MARSHELS ROOFING CONTRCTS LTD is a trusted extension builder serving customers in Worplesdon and the surrounding area. Contact us to today to get a...
Experienced extension builder ready to quote for your work. Betsworth Developments is the best extension builder in Worplesdon. No obligation free ...
Need to find an Extension Builder near you for all your extension buildering work?
MPE Brickwork provides a local, trusted extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Worplesdon it ranges from £2,128 (Holt Builders Ltd based in GU12) to £2,656 (MARSHELS ROOFING CONTRCTS LTD based in GU10).
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 Worplesdon by posting a job with HaMuch and we will send it to extension builders in Worplesdon.
"RSJ installation" - GU3, job posted 13/08/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Guildford | £53 | £298 |
| Install An RSJ near Ash Vale | £41 | £277 |
| Install An RSJ near Woking | £43 | £277 |
| Install An RSJ near Aldershot | £41 | £275 |
| Install An RSJ near Waverley | £68 | £313 |
| Install An RSJ near Farnborough | £41 | £272 |
| Install An RSJ near Farnham | £41 | £276 |
| Install An RSJ near Camberley | £40 | £268 |
| Install An RSJ near Fleet | £41 | £270 |
| Install An RSJ near New Haw | £43 | £273 |
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 - £17,674

Two storey extension - £88,260

Build a timber frame extension - £26,174

Build a swimming pool - £81,174

Single storey extension - £58,472

Side return extension - £43,453

Install an RSJ - £2,374

Outbuilding - £10,174

Build a Mansard loft conversion - £52,174

Loft conversion - £35,378

Build a kitchen extension - £42,174

Hip to gable loft conversion - £42,174

Granny annexe - £87,174

Garden office - £10,174

Convert a Garage - £16,174

Garage - £18,674

Build a flat roof extension - £22,174

Build a dormer loft conversion - £42,174

Concrete foundations - £6,424

Convert a bungalow loft - £29,174

Convert a basement - £39,453