From £1,936
Tom Coco is an established extension buildering business in L25. We come highly recommended and provide competitive quotes for your work.
From £2,072
Experienced extension builder ready to quote for your work. Elevate Finishing is the best extension builder in L25. No obligation free quotes and m...
From £1,936
Relax... you have found a reliable extension builder in L25. R Sargeant is a friendly and reliable company based in L25 who consider no job as too ...
From £2,104
Relax... you have found a reliable extension builder in L25. PENNY LANE BUILDERS LTD is a friendly and reliable company based in L25 who consider n...
From £2,504
Experienced extension builder ready to quote for your work. Spectrum is the best extension builder in L25. No obligation free quotes and many happy...
From £1,304
Liverpool Direct Builders is a trusted extension builder serving customers in L25 and the surrounding area. Contact us to today to get a competitiv...
From £2,288
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,000
Event planning interior designer new to buisness platform but have project managed a lot of my own home projects and organised events for birthdays...
From £1,888
Relax... you have found a reliable extension builder in L25. Hyst is a friendly and reliable company based in L25 who consider no job as too big or...
From £2,016
DK Building is an established extension buildering business in L25. We come highly recommended and provide competitive quotes for your work.

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in L25 it ranges from £1,304 (Liverpool Direct Builders based in L14) to £2,504 (Spectrum based in L14).
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 L25 by posting a job with HaMuch and we will send it to extension builders in L25.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Huyton with Roby | £29 | £210 |
| Install An RSJ near Knowsley | £29 | £208 |
| Install An RSJ near Prescot | £29 | £211 |
| Install An RSJ near Widnes | £27 | £193 |
| Install An RSJ near Halton | £27 | £193 |
| Install An RSJ near Liverpool | £28 | £199 |
| Install An RSJ near Bebington | £27 | £190 |
| Install An RSJ near Kirkby | £29 | £210 |
| Install An RSJ near Birkenhead | £28 | £200 |
| Install An RSJ near Ellesmere Port | £28 | £193 |
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 - £17,305

Two storey extension - £87,707

Build a timber frame extension - £25,805

Build a swimming pool - £80,805

Single storey extension - £51,096

Side return extension - £39,304

Install an RSJ - £2,005

Outbuilding - £9,805

Build a Mansard loft conversion - £51,805

Loft conversion - £31,920

Build a kitchen extension - £41,805

Hip to gable loft conversion - £41,805

Granny annexe - £86,805

Garden office - £9,805

Convert a Garage - £15,805

Garage - £18,305

Build a flat roof extension - £21,805

Build a dormer loft conversion - £41,805

Concrete foundations - £6,055

Convert a bungalow loft - £28,805

Convert a basement - £35,304