From £2,136
Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..
From £1,656
we are very efficient in our work.and make sure our client is one 100% satisfied with our work.
From £2,656
A.J Builders is an established and experienced local extension builder in LU7. Please contact us for a free, no obligation quote and competitive ra...
From £2,472
Top Notch Tradesmen is an established and experienced local extension builder in LU7. Please contact us for a free, no obligation quote and competi...
From £2,216
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,544
Need to find an Extension Builder near you for all your extension buildering work?
Greg-Bud provides a local, trusted extension buildering ...
From £2,432
If you are looking for a LU7 extension builder and you need something replaced, fitted, or fixed, contact Space Above Limited today. We are competi...
From £2,448
RS Plumbing and Heating is a trusted extension builder serving customers in LU7 and the surrounding area. Contact us to today to get a competitive ...
From £2,648
Relax... you have found a reliable extension builder in LU7. Bench Mark Construction is a friendly and reliable company based in LU7 who consider n...
From £3,008
Need to find an Extension Builder near you for all your extension buildering work?
A M Interiors provides a local, trusted extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in LU7 it ranges from £1,656 (Rite Builders based in LU1) to £3,008 (A M Interiors based in MK42).
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 LU7 by posting a job with HaMuch and we will send it to extension builders in LU7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Leighton Buzzard | £38 | £270 |
| Install An RSJ near Dunstable | £41 | £272 |
| 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 | £41 | £278 |
| Install An RSJ near Aylesbury Vale | £36 | £246 |
| Install An RSJ near Mid Bedfordshire | £42 | £276 |
| Install An RSJ near Berkhamsted | £41 | £263 |
| 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 - £17,722

Two storey extension - £88,332

Build a timber frame extension - £26,222

Build a swimming pool - £81,222

Single storey extension - £59,432

Side return extension - £43,993

Install an RSJ - £2,422

Outbuilding - £10,222

Build a Mansard loft conversion - £52,222

Loft conversion - £35,828

Build a kitchen extension - £42,222

Hip to gable loft conversion - £42,222

Granny annexe - £87,222

Garden office - £10,222

Convert a Garage - £16,222

Garage - £18,722

Build a flat roof extension - £22,222

Build a dormer loft conversion - £42,222

Concrete foundations - £6,472

Convert a bungalow loft - £29,222

Convert a basement - £39,993