From £2,568
Atlant Construction is an established extension buildering business in University College London. We come highly recommended and provide competitiv...
From £2,576
CK Constructions & Development Ltd is a trusted extension builder serving customers in University College London and the surrounding area. Contact ...
From £2,600
FLAVIA CONDE is an established and experienced local extension builder in University College London. Please contact us for a free, no obligation qu...
From £2,384
Need to find an Extension Builder near you for all your extension buildering work?
Pacho Build Ltd provides a local, trusted extension buil...
From £2,672
Longland Construction LTD is a high end refurbishment contractor and sub contractor company in London and surrounding areas. Woodwork, painting and...
From £2,328
NWL BUILDERS LTD are here to help customers who need an Extension Builder in University College London. We offer a competitive rate to complete all...
From £2,184
JK Doors is a trusted extension builder serving customers in University College London and the surrounding area. Contact us to today to get a compe...
From £2,488
Grand Phase Ltd is a trusted extension builder serving customers in University College London and the surrounding area. Contact us to today to get ...
From £2,512
Teammax LTD are here to help customers who need an Extension Builder in University College London. We offer a competitive rate to complete all your...
From £2,416
I would like to take this opportunity to introduce the services offered by KBB Master Builder LTD. KBB Master Builder prides itself on offering hi...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in University College London it ranges from £2,184 (JK Doors based in W1W) to £2,672 (Longland Construction based in WC1N).
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 University College London by posting a job with HaMuch and we will send it to extension builders in University College London.
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 - £17,773

Two storey extension - £88,409

Build a timber frame extension - £26,273

Build a swimming pool - £81,273

Single storey extension - £60,456

Side return extension - £44,569

Install an RSJ - £2,473

Outbuilding - £10,273

Build a Mansard loft conversion - £52,273

Loft conversion - £36,308

Build a kitchen extension - £42,273

Hip to gable loft conversion - £42,273

Granny annexe - £87,273

Garden office - £10,273

Convert a Garage - £16,273

Garage - £18,773

Build a flat roof extension - £22,273

Build a dormer loft conversion - £42,273

Concrete foundations - £6,523

Convert a bungalow loft - £29,273

Convert a basement - £40,569