From £2,072
G. Finnigan Builders is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for your wo...
From £1,864
Need an Extension Builder in WA10? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £1,808
Trusted and professional extension builder in WA10. Experienced in all extension buildering work and keeping within budget and on quote. M L R Buil...
From £2,080
Need to find an Extension Builder near you for all your extension buildering work?
Leabra Construction North West Ltd provides a local, tru...
From £2,096
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for yo...
From £1,424
MJ Barker & Son is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for your work.
From £2,232
Hello, I am Allan. I have run Allan Rowe Property Services since September 2014. I am based in Newton Le Willows and provide a wide range of proper...
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 £2,576
We are Aurora Building Company & we are the home improvement company you can depend upon to help transform your home to suit your needs. We spe...
From £2,000
Higher End Construction Limited is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WA10 it ranges from £1,424 (MJ Barker & Son based in WA11) to £2,576 (Aurora Building company ltd based in L12).
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 WA10 by posting a job with HaMuch and we will send it to extension builders in WA10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near St Helens | £31 | £224 |
| Install An RSJ near Prescot | £31 | £223 |
| Install An RSJ near Knowsley | £31 | £222 |
| Install An RSJ near Huyton with Roby | £31 | £225 |
| Install An RSJ near Newton-le-Willows | £31 | £221 |
| Install An RSJ near Ashton-in-Makerfield | £30 | £220 |
| Install An RSJ near Widnes | £31 | £220 |
| Install An RSJ near Kirkby | £31 | £223 |
| Install An RSJ near Orrell | £29 | £214 |
| Install An RSJ near Halton | £31 | £220 |
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 - £17,315

Two storey extension - £87,723

Build a timber frame extension - £25,815

Build a swimming pool - £80,815

Single storey extension - £51,304

Side return extension - £39,421

Install an RSJ - £2,015

Outbuilding - £9,815

Build a Mansard loft conversion - £51,815

Loft conversion - £32,018

Build a kitchen extension - £41,815

Hip to gable loft conversion - £41,815

Granny annexe - £86,815

Garden office - £9,815

Convert a Garage - £15,815

Garage - £18,315

Build a flat roof extension - £21,815

Build a dormer loft conversion - £41,815

Concrete foundations - £6,065

Convert a bungalow loft - £28,815

Convert a basement - £35,421