From £2,056
Offering a friendly and professional construction and insulation services to private residential and commercial customers in East Anglia and surrou...
From £1,824
Relax... you have found a reliable extension builder in Stowmarket. Mixbrow Construction is a friendly and reliable company based in Stowmarket who...
From £1,976
Trusted and professional extension builder in Stowmarket. Experienced in all extension buildering work and keeping within budget and on quote. RD F...
From £2,424
Small extension, to full turn key new house builds, listed building works, renovations. We provide a full comprehensive quotation for all your need...
From £2,056
Experienced extension builder ready to quote for your work. Beechwood Building Services is the best extension builder in Stowmarket. No obligation ...
From £2,240
Hurstlea Power And Lighting Ltd is a trusted extension builder serving customers in Stowmarket and the surrounding area. Contact us to today to get...
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 £2,120
Relax... you have found a reliable extension builder in Stowmarket. LWH Builders is a friendly and reliable company based in Stowmarket who conside...
From £1,944
Need an Extension Builder in Stowmarket? Suffolk Asbestos Services has been helping local clients (20 mile radius) with their extension buildering ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Stowmarket it ranges from £1,824 (Mixbrow Construction based in IP6) to £2,424 (SUFFOLK BUILD LTD T/A based in IP22).
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 Stowmarket by posting a job with HaMuch and we will send it to extension builders in Stowmarket.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Stowmarket | £30 | £221 |
| Install An RSJ near Ipswich | £33 | £235 |
| Install An RSJ near Bury St Edmunds | £34 | £251 |
| Install An RSJ near Suffolk Coastal | £28 | £215 |
| Install An RSJ near Sudbury | £34 | £229 |
| Install An RSJ near Thetford | £42 | £277 |
| 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 Colchester | £33 | £230 |
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 - £17,395

Two storey extension - £87,843

Build a timber frame extension - £25,895

Build a swimming pool - £80,895

Single storey extension - £52,904

Side return extension - £40,321

Install an RSJ - £2,095

Outbuilding - £9,895

Build a Mansard loft conversion - £51,895

Loft conversion - £32,768

Build a kitchen extension - £41,895

Hip to gable loft conversion - £41,895

Granny annexe - £86,895

Garden office - £9,895

Convert a Garage - £15,895

Garage - £18,395

Build a flat roof extension - £21,895

Build a dormer loft conversion - £41,895

Concrete foundations - £6,145

Convert a bungalow loft - £28,895

Convert a basement - £36,321