From £2,216
Relax... you have found a reliable extension builder in Aylesbury Vale. D Beagle Building Contractors is a friendly and reliable company based in A...
From £2,648
Trusted and professional extension builder in Aylesbury Vale. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £2,360
D M B E BUILDPLUS is an established and experienced local extension builder in Aylesbury Vale. Please contact us for a free, no obligation quote an...
From £2,640
Just Lofts are here to help customers who need an Extension Builder in Aylesbury Vale. We offer a competitive rate to complete all your extension b...
From £2,056
Paul Brennan Building Services is an established extension buildering business in Aylesbury Vale. We come highly recommended and provide competitiv...
From £2,480
Trusted and professional extension builder in Aylesbury Vale. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £2,440
AMG Roofing (Bucks) Ltd is owned by Ashley Gibson, a small, friendly, family run business that began in 2020, as a result of the Pandemic and an ac...
From £2,328
THREE HUNDREDS BUILDING LTD are here to help customers who need an Extension Builder in Aylesbury Vale. We offer a competitive rate to complete all...
From £2,168
Experienced extension builder ready to quote for your work. VICTOR KING CONSTRUCTION is the best extension builder in Aylesbury Vale. No obligation...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Aylesbury Vale it ranges from £2,056 (Paul Brennan Building Services based in HP22) to £2,648 (C HORWOOD CONSTRUCTION based in HP19).
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 Aylesbury Vale by posting a job with HaMuch and we will send it to extension builders in Aylesbury Vale.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Aylesbury Vale | £36 | £246 |
| Install An RSJ near Aylesbury | £42 | £270 |
| Install An RSJ near Bicester | £35 | £249 |
| Install An RSJ near Bletchley | £39 | £265 |
| Install An RSJ near Leighton Buzzard | £38 | £270 |
| Install An RSJ near Milton Keynes | £39 | £263 |
| Install An RSJ near Cherwell | £35 | £249 |
| Install An RSJ near Dunstable | £41 | £272 |
| Install An RSJ near Berkhamsted | £41 | £263 |
| Install An RSJ near Oxford | £37 | £261 |
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 - £17,666

Two storey extension - £88,248

Build a timber frame extension - £26,166

Build a swimming pool - £81,166

Single storey extension - £58,312

Side return extension - £43,363

Install an RSJ - £2,366

Outbuilding - £10,166

Build a Mansard loft conversion - £52,166

Loft conversion - £35,303

Build a kitchen extension - £42,166

Hip to gable loft conversion - £42,166

Granny annexe - £87,166

Garden office - £10,166

Convert a Garage - £16,166

Garage - £18,666

Build a flat roof extension - £22,166

Build a dormer loft conversion - £42,166

Concrete foundations - £6,416

Convert a bungalow loft - £29,166

Convert a basement - £39,363