From £2,008
Trusted and professional extension builder in CO10. Experienced in all extension buildering work and keeping within budget and on quote. We Love Pr...
From £1,896
Relax... you have found a reliable extension builder in CO10. Cooper and Kelling Builders is a friendly and reliable company based in CO10 who cons...
From £2,200
Relax... you have found a reliable extension builder in CO10. Premier Building is a friendly and reliable company based in CO10 who consider no job...
From £2,416
Need an Extension Builder in CO10? DELTA BUILD LIMITED has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £2,064
Need an Extension Builder in CO10? K T GRIDLEY GENERAL BUILDER has been helping local clients (20 mile radius) with their extension buildering jobs...
From £2,080
Need an Extension Builder in CO10? Mc2 Building Services has been helping local clients (20 mile radius) with their extension buildering jobs for m...
From £2,040
Need to find an Extension Builder near you for all your extension buildering work?
D Mason Developments Ltd provides a local, trusted exten...
From £2,248
Ashdell is an established and experienced local extension builder in CO10. Please contact us for a free, no obligation quote and competitive rates....
From £2,288
R Best Building Services are here to help customers who need an Extension Builder in CO10. We offer a competitive rate to complete all your extensi...
From £2,304
Relax... you have found a reliable extension builder in CO10. Pinnacle Construction is a friendly and reliable company based in CO10 who consider n...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CO10 it ranges from £1,896 (Cooper and Kelling Builders based in CO10) to £2,416 (DELTA BUILD LIMITED based in CO9).
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 CO10 by posting a job with HaMuch and we will send it to extension builders in CO10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Sudbury | £34 | £229 |
| Install An RSJ near Haverhill | £37 | £260 |
| Install An RSJ near Colchester | £33 | £230 |
| Install An RSJ near Bury St Edmunds | £34 | £251 |
| Install An RSJ near Braintree | £37 | £247 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Witham | £36 | £240 |
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Tendring | £31 | £226 |
| Install An RSJ near Maldon | £36 | £244 |
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 - £17,454

Two storey extension - £87,932

Build a timber frame extension - £25,954

Build a swimming pool - £80,954

Single storey extension - £54,088

Side return extension - £40,987

Install an RSJ - £2,154

Outbuilding - £9,954

Build a Mansard loft conversion - £51,954

Loft conversion - £33,323

Build a kitchen extension - £41,954

Hip to gable loft conversion - £41,954

Granny annexe - £86,954

Garden office - £9,954

Convert a Garage - £15,954

Garage - £18,454

Build a flat roof extension - £21,954

Build a dormer loft conversion - £41,954

Concrete foundations - £6,204

Convert a bungalow loft - £28,954

Convert a basement - £36,987