From £2,152
G J Kelly Brickwork & Building Contractors is a trusted extension builder serving customers in Collier Row and the surrounding area. Contact us to ...
From £2,104
Need to find an Extension Builder near you for all your extension buildering work?
SAB Home Improvement Ltd. provides a local, trusted exte...
From £2,584
Prendi Construction Ltd is an established and experienced local extension builder in Collier Row. Please contact us for a free, no obligation quote...
From £2,152
SS Home Builders is a trusted extension builder serving customers in Collier Row and the surrounding area. Contact us to today to get a competitive...
From £3,432
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
From £2,344
J Mchayle & Sons are here to help customers who need an Extension Builder in Collier Row. We offer a competitive rate to complete all your extensio...
From £2,648
Lori Construction Services Limited are here to help customers who need an Extension Builder in Collier Row. We offer a competitive rate to complete...
From £2,576
Need an Extension Builder in Collier Row? George Builders has been helping local clients (10 mile radius) with their extension buildering jobs for ...
From £2,440
Q Boss D&B is an established extension buildering business in Collier Row. We come highly recommended and provide competitive quotes for your work....
From £2,560
Experienced extension builder ready to quote for your work. CPD Limited is the best extension builder in Collier Row. No obligation free quotes and...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Collier Row it ranges from £2,104 (SAB Home Improvement Ltd. based in RM5) to £3,432 (Optimus Build Solutions based in Rm1).
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 Collier Row by posting a job with HaMuch and we will send it to extension builders in Collier Row.
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 - £17,799

Two storey extension - £88,449

Build a timber frame extension - £26,299

Build a swimming pool - £81,299

Single storey extension - £60,984

Side return extension - £44,866

Install an RSJ - £2,499

Outbuilding - £10,299

Build a Mansard loft conversion - £52,299

Loft conversion - £36,555

Build a kitchen extension - £42,299

Hip to gable loft conversion - £42,299

Granny annexe - £87,299

Garden office - £10,299

Convert a Garage - £16,299

Garage - £18,799

Build a flat roof extension - £22,299

Build a dormer loft conversion - £42,299

Concrete foundations - £6,549

Convert a bungalow loft - £29,299

Convert a basement - £40,866