From £2,120
Relax... you have found a reliable extension builder in Copdock. LWH Builders is a friendly and reliable company based in Copdock who consider no j...
From £2,288
At AQL Carpentry Ltd, a full-service building company dedicated to providing high-quality construction services to clients throughout Suffolk. With...
From £1,944
Need an Extension Builder in Copdock? Suffolk Asbestos Services has been helping local clients (20 mile radius) with their extension buildering job...
From £2,240
Hurstlea Power And Lighting Ltd is a trusted extension builder serving customers in Copdock and the surrounding area. Contact us to today to get a ...
From £3,168
Universal Property Services Ltd is an established and experienced local extension builder in Copdock. Please contact us for a free, no obligation q...
From £1,880
PPM Builders is a trusted extension builder serving customers in Copdock and the surrounding area. Contact us to today to get a competitive quote f...
From £1,696
Trusted and professional extension builder in Copdock. Experienced in all extension buildering work and keeping within budget and on quote. MILTON ...
From £2,312
San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...
From £2,224
NEIL WYLIE BUILDERS LIMITED is a trusted extension builder serving customers in Copdock and the surrounding area. Contact us to today to get a comp...
From £2,000
Trusted and professional extension builder in Copdock. Experienced in all extension buildering work and keeping within budget and on quote. James F...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Copdock it ranges from £1,696 (MILTON BUILDERS based in IP3) to £3,168 (Universal Property Services Ltd based in IP1).
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 Copdock by posting a job with HaMuch and we will send it to extension builders in Copdock.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Harwich | £34 | £248 |
| Install An RSJ near Tendring | £31 | £226 |
| Install An RSJ near Felixstowe | £31 | £231 |
| Install An RSJ near Colchester | £33 | £230 |
| Install An RSJ near Suffolk Coastal | £28 | £215 |
| Install An RSJ near Sudbury | £34 | £229 |
| Install An RSJ near Clacton-on-Sea | £31 | £232 |
| Install An RSJ near Bury St Edmunds | £34 | £251 |
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 - £17,487

Two storey extension - £87,981

Build a timber frame extension - £25,987

Build a swimming pool - £80,987

Single storey extension - £54,744

Side return extension - £41,356

Install an RSJ - £2,187

Outbuilding - £9,987

Build a Mansard loft conversion - £51,987

Loft conversion - £33,630

Build a kitchen extension - £41,987

Hip to gable loft conversion - £41,987

Granny annexe - £86,987

Garden office - £9,987

Convert a Garage - £15,987

Garage - £18,487

Build a flat roof extension - £21,987

Build a dormer loft conversion - £41,987

Concrete foundations - £6,237

Convert a bungalow loft - £28,987

Convert a basement - £37,356