From £1,840
Need an Extension Builder in PR9? M D Joinery (Southport) Ltd has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £2,200
Looking for an Extension Builder near PR9 for all your extension buildering jobs?
Evergreen Developments Nw Ltd provi...
From £1,592
Prestige Property Conversions Ltd is an established extension buildering business in PR9. We come highly recommended and provide competitive quotes...
From £1,736
Need an Extension Builder in PR9? Tathams Joinery has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £2,016
Need to find an Extension Builder near you for all your extension buildering work?
Lytham Driveways & Patios provides a local, trusted exte...
From £1,960
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £2,200
Urban Select Construction is a trusted extension builder serving customers in PR9 and the surrounding area. Contact us to today to get a competitiv...
From £1,880
Ibuild Design & Build is a Blackpool based building and home improvement company providing quality home improvements for proud homeowners across La...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in PR9 it ranges from £1,472 (A.K.S based in L40) to £2,200 (Evergreen Developments Nw Ltd based in PR8).
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 PR9 by posting a job with HaMuch and we will send it to extension builders in PR9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Southport | £27 | £198 |
| Install An RSJ near Lytham St Annes | £28 | £206 |
| Install An RSJ near Ormskirk | £29 | £206 |
| Install An RSJ near West Lancashire | £28 | £203 |
| Install An RSJ near Formby | £23 | £162 |
| Install An RSJ near Maghull | £33 | £219 |
| Install An RSJ near Skelmersdale | £29 | £211 |
| Install An RSJ near Sefton | £34 | £221 |
| Install An RSJ near Blackpool | £29 | £209 |
| Install An RSJ near Penwortham | £30 | £218 |
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 - £17,140

Two storey extension - £87,460

Build a timber frame extension - £25,640

Build a swimming pool - £80,640

Single storey extension - £47,800

Side return extension - £37,450

Install an RSJ - £1,840

Outbuilding - £9,640

Build a Mansard loft conversion - £51,640

Loft conversion - £30,375

Build a kitchen extension - £41,640

Hip to gable loft conversion - £41,640

Granny annexe - £86,640

Garden office - £9,640

Convert a Garage - £15,640

Garage - £18,140

Build a flat roof extension - £21,640

Build a dormer loft conversion - £41,640

Concrete foundations - £5,890

Convert a bungalow loft - £28,640

Convert a basement - £33,450