From £2,176
Nathan Thomas Plumbing is an established extension buildering business in WA7. We come highly recommended and provide competitive quotes for your w...
From £1,672
Trusted and professional extension builder in WA7. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £1,872
J.M.C Building Services is a trusted extension builder serving customers in WA7 and the surrounding area. Contact us to today to get a competitive ...
From £1,976
Relax... you have found a reliable extension builder in WA7. David Anderson Builders is a friendly and reliable company based in WA7 who consider n...
From £2,232
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in WA7. We offer a competitive rate to complete all your exten...
From £2,256
AJ Solutions is an established extension buildering business in WA7. We come highly recommended and provide competitive quotes for your work.
From £1,912
Here at RC Building Services Ltd we pride ourselves on providing reliable, excellent quality and competitively priced building services. Our priori...
From £1,808
Relax... you have found a reliable extension builder in WA7. R A C Gas is a friendly and reliable company based in WA7 who consider no job as too b...
From £1,896
G P Roofing & Building Service is a trusted extension builder serving customers in WA7 and the surrounding area. Contact us to today to get a compe...
From £1,904
Need an Extension Builder in WA7? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension buildering jo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WA7 it ranges from £1,672 (Jones Landscaping based in L30) to £2,256 (AJ Solutions based in CH1).
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 WA7 by posting a job with HaMuch and we will send it to extension builders in WA7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Runcorn | £33 | £228 |
| Install An RSJ near Halton | £31 | £220 |
| Install An RSJ near Widnes | £31 | £220 |
| Install An RSJ near Warrington | £31 | £222 |
| Install An RSJ near Huyton with Roby | £31 | £225 |
| Install An RSJ near Prescot | £31 | £223 |
| Install An RSJ near Knowsley | £31 | £222 |
| Install An RSJ near St Helens | £31 | £224 |
| Install An RSJ near Ellesmere Port | £31 | £214 |
| Install An RSJ near Newton-le-Willows | £31 | £221 |
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 - £17,270

Two storey extension - £87,656

Build a timber frame extension - £25,770

Build a swimming pool - £80,770

Single storey extension - £50,408

Side return extension - £38,917

Install an RSJ - £1,970

Outbuilding - £9,770

Build a Mansard loft conversion - £51,770

Loft conversion - £31,598

Build a kitchen extension - £41,770

Hip to gable loft conversion - £41,770

Granny annexe - £86,770

Garden office - £9,770

Convert a Garage - £15,770

Garage - £18,270

Build a flat roof extension - £21,770

Build a dormer loft conversion - £41,770

Concrete foundations - £6,020

Convert a bungalow loft - £28,770

Convert a basement - £34,917