From £2,408
Trusted and professional extension builder in SS16. Experienced in all extension buildering work and keeping within budget and on quote. CLARK CONS...
From £2,408
Browns Contractors is a trusted extension builder serving customers in SS16 and the surrounding area. Contact us to today to get a competitive quot...
From £2,248
Experienced extension builder ready to quote for your work. LG Construction (Essex) Ltd is the best extension builder in SS16. No obligation free q...
From £2,360
Property Maintenance are here to help customers who need an Extension Builder in SS16. We offer a competitive rate to complete all your extension b...
From £2,176
We are a family run business that have experience of over 30 years in property maintenance, estate agents and insurance works. We provide ...
From £2,376
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in SS16 and the surrounding area. Contact us to today to get a c...
From £2,368
Need to find an Extension Builder near you for all your extension buildering work?
Essex Conservatories provides a local, trusted extension...
From £2,560
Need an Extension Builder in SS16? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering j...
From £2,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,280
Our building services company CCW Building & Plumbing have thirteen years’ experience and we have been helping customers in Basildon and the surr...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SS16 it ranges from £2,112 (White & Sons Home Improvements based in SS16) to £2,560 (Ellis & James Builders Limited based in SS17).
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 SS16 by posting a job with HaMuch and we will send it to extension builders in SS16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Basildon | £39 | £251 |
| Install An RSJ near Stanford-le-Hope | £40 | £254 |
| Install An RSJ near Billericay | £38 | £248 |
| Install An RSJ near Wickford | £39 | £255 |
| Install An RSJ near Thundersley | £38 | £251 |
| Install An RSJ near Brentwood | £39 | £255 |
| Install An RSJ near Thurrock | £41 | £260 |
| Install An RSJ near Canvey Island | £39 | £256 |
| Install An RSJ near Rayleigh | £39 | £252 |
| Install An RSJ near Chafford Hundred | £41 | £261 |
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 - £88,194

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,592

Side return extension - £42,958

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,965

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 - £38,958