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Ozzy Marsh
Spilsby, PE23
P MARSH BUILDING CONTRACTOR is an established and experienced local extension builder in Spilsby. Please contact us for a free, no obligation quote...
From £1,784
Trusted and professional extension builder in Spilsby. Experienced in all extension buildering work and keeping within budget and on quote. A J REE...
From £1,728
Spilsby, PE23
Trusted and professional extension builder in Spilsby. Experienced in all extension buildering work and keeping within budget and on quote. PAUL JA...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Spilsby it ranges from £1,728 (PAUL JACKSON BUILDING CONTRS based in PE23) to £2,504 (P MARSH BUILDING CONTRACTOR based in PE23).
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 Spilsby by posting a job with HaMuch and we will send it to extension builders in Spilsby.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near East Lindsey | £27 | £198 |
| Install An RSJ near Boston | £28 | £262 |
| Install An RSJ near Cleethorpes | £32 | £246 |
| Install An RSJ near North East Lincolnshire | £32 | £246 |
| Install An RSJ near Grimsby | £32 | £246 |
| Install An RSJ near Spalding | £32 | £238 |
| Install An RSJ near Lincoln | £31 | £232 |
| Install An RSJ near Kings Lynn & West Norfolk | £31 | £238 |
| Install An RSJ near King's Lynn | £33 | £254 |
| Install An RSJ near North Lincolnshire | £28 | £216 |
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 - £17,305

Two storey extension - £87,708

Build a timber frame extension - £25,805

Build a swimming pool - £80,805

Single storey extension - £51,107

Side return extension - £39,310

Install an RSJ - £2,005

Outbuilding - £9,805

Build a Mansard loft conversion - £51,805

Loft conversion - £31,925

Build a kitchen extension - £41,805

Hip to gable loft conversion - £41,805

Granny annexe - £86,805

Garden office - £9,805

Convert a Garage - £15,805

Garage - £18,305

Build a flat roof extension - £21,805

Build a dormer loft conversion - £41,805

Concrete foundations - £6,055

Convert a bungalow loft - £28,805

Convert a basement - £35,310