From £1,912
Trading since 1997 kitchens,bathrooms lofts patios roof work and much more
From £2,248
Trusted and professional extension builder in South Petherwin. Experienced in all extension buildering work and keeping within budget and on quote....
From £2,184
We are a construction company that have been providing professional high quality work for 25 years.
We work mainly with listed and period...
From £1,968
Need an Extension Builder in South Petherwin? NCN Building & Maintenance Ltd has been helping local clients (20 mile radius) with their extension b...
From £2,272
Experienced in extensions, renovations, home improvements, patios, fencing, landscaping, carpentry, plastering and general property maintenance. Ex...
From £1,552
Eastman Landscapes is a trusted extension builder serving customers in South Petherwin and the surrounding area. Contact us to today to get a compe...
From £2,488
Forty years of experience in our local community
From £2,344
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,160
M D A BUILDERS is an established extension buildering business in South Petherwin. We come highly recommended and provide competitive quotes for y...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in South Petherwin it ranges from £1,552 (Eastman Landscapes based in PL15) to £2,488 (Brian C Credicott based in PL19).
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 South Petherwin by posting a job with HaMuch and we will send it to extension builders in South Petherwin.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Plymouth | £30 | £230 |
| Install An RSJ near St Austell | £38 | £245 |
| Install An RSJ near Bideford | £22 | £174 |
| Install An RSJ near Newquay | £32 | £230 |
| Install An RSJ near Truro | £31 | £206 |
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 - £17,446

Two storey extension - £87,918

Build a timber frame extension - £25,946

Build a swimming pool - £80,946

Single storey extension - £53,912

Side return extension - £40,888

Install an RSJ - £2,146

Outbuilding - £9,946

Build a Mansard loft conversion - £51,946

Loft conversion - £33,240

Build a kitchen extension - £41,946

Hip to gable loft conversion - £41,946

Granny annexe - £86,946

Garden office - £9,946

Convert a Garage - £15,946

Garage - £18,446

Build a flat roof extension - £21,946

Build a dormer loft conversion - £41,946

Concrete foundations - £6,196

Convert a bungalow loft - £28,946

Convert a basement - £36,888