Torrington Design
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
Relax... you have found a reliable extension builder in Tower Hill. London Trowel Co. is a friendly and reliable company based in Tower Hill who co...
Trusted and professional extension builder in Tower Hill. Experienced in all extension buildering work and keeping within budget and on quote. Ther...
Experienced extension builder ready to quote for your work. Glenward Builders Ltd is the best extension builder in Tower Hill. No obligation free q...
CK Constructions & Development Ltd is a trusted extension builder serving customers in Tower Hill and the surrounding area. Contact us to today to ...
A to Z Builders Ltd are here to help customers who need an Extension Builder in Tower Hill. We offer a competitive rate to complete all your extens...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Tower Hill. No obligation fr...
JK Doors is a trusted extension builder serving customers in Tower Hill and the surrounding area. Contact us to today to get a competitive quote fo...
GS Fabric Ltd is an established and experienced local extension builder in Tower Hill. Please contact us for a free, no obligation quote and compet...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Tower Hill it ranges from £2,128 (GS Fabric Ltd based in E2) to £2,576 (CK Constructions & Development Ltd 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 Tower Hill by posting a job with HaMuch and we will send it to extension builders in Tower Hill.
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 - £17,620

Two storey extension - £88,180

Build a timber frame extension - £26,120

Build a swimming pool - £81,120

Single storey extension - £57,400

Side return extension - £42,850

Install an RSJ - £2,320

Outbuilding - £10,120

Build a Mansard loft conversion - £52,120

Loft conversion - £34,875

Build a kitchen extension - £42,120

Hip to gable loft conversion - £42,120

Granny annexe - £87,120

Garden office - £10,120

Convert a Garage - £16,120

Garage - £18,620

Build a flat roof extension - £22,120

Build a dormer loft conversion - £42,120

Concrete foundations - £6,370

Convert a bungalow loft - £29,120

Convert a basement - £38,850