Trinity Green Building Contractors are here to help customers who need an Extension Builder in Spalding. We offer a competitive rate to complete al...
From £2,104
R JOSE (BUILDER) is an established and experienced local extension builder in Spalding. Please contact us for a free, no obligation quote and compe...
From £2,168
Relax... you have found a reliable extension builder in Spalding. OLD COURT BUILDERS is a friendly and reliable company based in Spalding who consi...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Spalding it ranges from £2,104 (R JOSE (BUILDER) based in PE11) to £2,264 (Trinity Green Building Contractors based in PE6).
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 Spalding by posting a job with HaMuch and we will send it to extension builders in Spalding.
"RSJ installation" - SPALDING, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Spalding | £32 | £238 |
| Install An RSJ near Boston | £28 | £262 |
| Install An RSJ near Wisbech | £34 | £255 |
| Install An RSJ near Peterborough | £40 | £281 |
| Install An RSJ near Stamford | £35 | £248 |
| Install An RSJ near Grantham | £38 | £228 |
| Install An RSJ near King's Lynn | £33 | £254 |
| Install An RSJ near Huntingdonshire | £36 | £290 |
| Install An RSJ near Kings Lynn & West Norfolk | £31 | £238 |
| Install An RSJ near Corby | £30 | £214 |
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 - £17,479

Two storey extension - £87,968

Build a timber frame extension - £25,979

Build a swimming pool - £80,979

Single storey extension - £54,573

Side return extension - £41,260

Install an RSJ - £2,179

Outbuilding - £9,979

Build a Mansard loft conversion - £51,979

Loft conversion - £33,550

Build a kitchen extension - £41,979

Hip to gable loft conversion - £41,979

Granny annexe - £86,979

Garden office - £9,979

Convert a Garage - £15,979

Garage - £18,479

Build a flat roof extension - £21,979

Build a dormer loft conversion - £41,979

Concrete foundations - £6,229

Convert a bungalow loft - £28,979

Convert a basement - £37,260