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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Leighton Buzzard? Highland Homes & Gardens has been helping local clients (20 mile radius) with their extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
EXPERT BUILDING SERVICES is an established and experienced local extension builder in Leighton Buzzard. Please contact us for a free, no obligation...
Need to find an Extension Builder near you for all your extension buildering work?
Go-Large Design & Build Ltd provides a local, trusted ex...
Klajdi Progja
Need to find an Extension Builder near you for all your extension buildering work?
Mat al construction ltd provides a local, trusted exten...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
THREE HUNDREDS BUILDING LTD are here to help customers who need an Extension Builder in Leighton Buzzard. We offer a competitive rate to complete a...
STEPHEN PARKIN BUILDING CONTRA is an established extension buildering business in Leighton Buzzard. We come highly recommended and provide competit...
We are a family run business that has been trading since 1976 in Tring, Berkhamsted and surrounding areas.

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Leighton Buzzard it ranges from £2,048 (Highland Homes & Gardens based in MK4) to £2,696 (Mat al construction ltd based in LU5).
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 Leighton Buzzard by posting a job with HaMuch and we will send it to extension builders in Leighton Buzzard.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Leighton Buzzard | £38 | £270 |
| Install An RSJ near Dunstable | £41 | £274 |
| Install An RSJ near Bletchley | £39 | £265 |
| Install An RSJ near Aylesbury | £42 | £270 |
| Install An RSJ near Milton Keynes | £39 | £263 |
| Install An RSJ near Luton | £42 | £279 |
| Install An RSJ near Aylesbury Vale | £36 | £246 |
| Install An RSJ near Mid Bedfordshire | £42 | £276 |
| Install An RSJ near Berkhamsted | £41 | £273 |
| Install An RSJ near Ampthill | £38 | £258 |
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 - £17,731

Two storey extension - £88,347

Build a timber frame extension - £26,231

Build a swimming pool - £81,231

Single storey extension - £59,624

Side return extension - £44,101

Install an RSJ - £2,431

Outbuilding - £10,231

Build a Mansard loft conversion - £52,231

Loft conversion - £35,918

Build a kitchen extension - £42,231

Hip to gable loft conversion - £42,231

Granny annexe - £87,231

Garden office - £10,231

Convert a Garage - £16,231

Garage - £18,731

Build a flat roof extension - £22,231

Build a dormer loft conversion - £42,231

Concrete foundations - £6,481

Convert a bungalow loft - £29,231

Convert a basement - £40,101