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 £1,696
Trusted and professional extension builder in IP3. Experienced in all extension buildering work and keeping within budget and on quote. MILTON BUIL...
From £2,000
Trusted and professional extension builder in IP3. Experienced in all extension buildering work and keeping within budget and on quote. James Franc...
From £2,224
NEIL WYLIE BUILDERS LIMITED is a trusted extension builder serving customers in IP3 and the surrounding area. Contact us to today to get a competit...
From £1,496
Caley & Son are here to help customers who need an Extension Builder in IP3. We offer a competitive rate to complete all your extension buildering ...
From £1,880
PPM Builders is a trusted extension builder serving customers in IP3 and the surrounding area. Contact us to today to get a competitive quote for e...
From £3,168
Universal Property Services Ltd is an established and experienced local extension builder in IP3. Please contact us for a free, no obligation quote...
From £1,656
Dmc paving&landscaping we. Family run company with many years experience with over 100 reviews on other websites
From £1,944
Need an Extension Builder in IP3? Suffolk Asbestos Services has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £2,120
Relax... you have found a reliable extension builder in IP3. LWH Builders is a friendly and reliable company based in IP3 who consider no job as to...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in IP3 it ranges from £1,496 (Caley & Son 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 IP3 by posting a job with HaMuch and we will send it to extension builders in IP3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Felixstowe | £31 | £231 |
| Install An RSJ near Harwich | £34 | £248 |
| Install An RSJ near Tendring | £31 | £226 |
| Install An RSJ near Suffolk Coastal | £28 | £215 |
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Colchester | £33 | £230 |
| Install An RSJ near Clacton-on-Sea | £31 | £232 |
| Install An RSJ near Sudbury | £34 | £229 |
| 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 - £17,350

Two storey extension - £87,774

Build a timber frame extension - £25,850

Build a swimming pool - £80,850

Single storey extension - £51,992

Side return extension - £39,808

Install an RSJ - £2,050

Outbuilding - £9,850

Build a Mansard loft conversion - £51,850

Loft conversion - £32,340

Build a kitchen extension - £41,850

Hip to gable loft conversion - £41,850

Granny annexe - £86,850

Garden office - £9,850

Convert a Garage - £15,850

Garage - £18,350

Build a flat roof extension - £21,850

Build a dormer loft conversion - £41,850

Concrete foundations - £6,100

Convert a bungalow loft - £28,850

Convert a basement - £35,808