From £1,776
Tekton Construction NW is an established extension buildering business in PR4. We come highly recommended and provide competitive quotes for your w...
From £1,912
Smedley Construction Ltd is a trusted extension builder serving customers in PR4 and the surrounding area. Contact us to today to get a competitive...
From £2,048
Relax... you have found a reliable extension builder in PR4. Green Generation Builders Ltd is a friendly and reliable company based in PR4 who cons...
From £1,744
Need to find an Extension Builder near you for all your extension buildering work?
Poulton Building & Joinery Services provides a local, tr...
From £1,672
Trusted and professional extension builder in PR4. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £1,832
Fishers Building & Paving Ltd is an established extension buildering business in PR4. We come highly recommended and provide competitive quotes for...
From £2,056
S.G. Joinery & Building is a well-established company setup over 15 years ago and working in the Poulton-le-Fylde , Preston ,Garstang and ...
From £1,920
Conway Construction Ltd is an established extension buildering business in PR4. We come highly recommended and provide competitive quotes for your ...
From £2,032
Need an Extension Builder in PR4? John Towers Builders has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £2,096
Need to find an Extension Builder near you for all your extension buildering work?
J.L Noblet provides a local, trusted extension builderin...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in PR4 it ranges from £1,672 (Jones Landscaping based in L30) to £2,096 (J.L Noblet based in PR2).
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 PR4 by posting a job with HaMuch and we will send it to extension builders in PR4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Penwortham | £30 | £218 |
| Install An RSJ near Preston | £30 | £218 |
| Install An RSJ near Fulwood | £31 | £217 |
| Install An RSJ near Leyland | £30 | £223 |
| Install An RSJ near Bamber Bridge | £30 | £216 |
| Install An RSJ near Lytham St Annes | £28 | £206 |
| Install An RSJ near Blackpool | £29 | £209 |
| Install An RSJ near Thornton | £29 | £211 |
| Install An RSJ near Chorley | £30 | £221 |
| Install An RSJ near Southport | £27 | £198 |
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 - £17,209

Two storey extension - £87,563

Build a timber frame extension - £25,709

Build a swimming pool - £80,709

Single storey extension - £49,176

Side return extension - £38,224

Install an RSJ - £1,909

Outbuilding - £9,709

Build a Mansard loft conversion - £51,709

Loft conversion - £31,020

Build a kitchen extension - £41,709

Hip to gable loft conversion - £41,709

Granny annexe - £86,709

Garden office - £9,709

Convert a Garage - £15,709

Garage - £18,209

Build a flat roof extension - £21,709

Build a dormer loft conversion - £41,709

Concrete foundations - £5,959

Convert a bungalow loft - £28,709

Convert a basement - £34,224