From £2,256
Experienced extension builder ready to quote for your work. Shackleton Construction is the best extension builder in Dartmouth. No obligation free ...
From £1,848
Trusted and professional extension builder in Dartmouth. Experienced in all extension buildering work and keeping within budget and on quote. HAAT ...
From £2,200
Experienced extension builder ready to quote for your work. NOMAD CONSTRUCTION LTD is the best extension builder in Dartmouth. No obligation free q...
From £1,936
Experienced extension builder ready to quote for your work. Tim Lewry T L Construction is the best extension builder in Dartmouth. No obligation fr...
From £1,832
Need to find an Extension Builder near you for all your extension buildering work?
Emphatic Attics provides a local, trusted extension buil...
From £1,872
Trusted and professional extension builder in Dartmouth. Experienced in all extension buildering work and keeping within budget and on quote. PC Bu...
From £1,880
Trusted and professional extension builder in Dartmouth. Experienced in all extension buildering work and keeping within budget and on quote. Consi...
From £1,784
Need to find an Extension Builder near you for all your extension buildering work?
Mann Building & Damp Proofing provides a local, trusted ...
From £2,112
Pride & Joy Construction is an established extension buildering business in Dartmouth. We come highly recommended and provide competitive quotes fo...
From £2,144
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Dartmouth it ranges from £1,784 (Mann Building & Damp Proofing based in TQ3) to £2,256 (Shackleton Construction based in TQ6).
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 Dartmouth by posting a job with HaMuch and we will send it to extension builders in Dartmouth.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Paignton | £27 | £222 |
| Install An RSJ near Torbay | £27 | £223 |
| Install An RSJ near Torquay | £28 | £223 |
| Install An RSJ near Newton Abbot | £27 | £236 |
| Install An RSJ near Teignbridge | £27 | £260 |
| Install An RSJ near Exmouth | £24 | £210 |
| Install An RSJ near Plymouth | £30 | £230 |
| Install An RSJ near Exeter | £27 | £221 |
| Install An RSJ near East Devon | £27 | £221 |
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 - £17,286

Two storey extension - £87,680

Build a timber frame extension - £25,786

Build a swimming pool - £80,786

Single storey extension - £50,728

Side return extension - £39,097

Install an RSJ - £1,986

Outbuilding - £9,786

Build a Mansard loft conversion - £51,786

Loft conversion - £31,748

Build a kitchen extension - £41,786

Hip to gable loft conversion - £41,786

Granny annexe - £86,786

Garden office - £9,786

Convert a Garage - £15,786

Garage - £18,286

Build a flat roof extension - £21,786

Build a dormer loft conversion - £41,786

Concrete foundations - £6,036

Convert a bungalow loft - £28,786

Convert a basement - £35,097