From £2,496
Greater London, E2
Relax... you have found a reliable extension builder in E2. Hannah Construction is a friendly and reliable company based in E2 who consider no job ...
From £2,280
Checa Romero is an established and experienced local extension builder in E2. Please contact us for a free, no obligation quote and competitive rat...
From £2,560
Need an Extension Builder in E2? Sean & Stephen Ltd has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
From £2,416
Trusted and professional extension builder in E2. Experienced in all extension buildering work and keeping within budget and on quote. AB Building ...
From £2,464
Greater London, E2
BLOCK Design & Build is an established extension buildering business in E2. We come highly recommended and provide competitive quotes for your work...
From £2,128
GS Fabric Ltd is an established and experienced local extension builder in E2. Please contact us for a free, no obligation quote and competitive ra...
From £2,728
Gabriel Shin is an established and experienced local extension builder in E2. Please contact us for a free, no obligation quote and competitive rat...
From £2,536
Pencil and Brick is the collective name for our architect practice and our construction company. We're based in East London.We work on a wide range...
From £2,176
ISLE CONSTRUCTION LTD is a trusted extension builder serving customers in E2 and the surrounding area. Contact us to today to get a competitive quo...
From £2,608
Experienced extension builder ready to quote for your work. ATOM BUILD LTD T/A is the best extension builder in E2. No obligation free quotes and m...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in E2 it ranges from £2,128 (GS Fabric Ltd based in E2) to £2,728 (Gabriel Shin based in E1).
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 E2 by posting a job with HaMuch and we will send it to extension builders in E2.
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 - £17,739

Two storey extension - £88,359

Build a timber frame extension - £26,239

Build a swimming pool - £81,239

Single storey extension - £59,784

Side return extension - £44,191

Install an RSJ - £2,439

Outbuilding - £10,239

Build a Mansard loft conversion - £52,239

Loft conversion - £35,993

Build a kitchen extension - £42,239

Hip to gable loft conversion - £42,239

Granny annexe - £87,239

Garden office - £10,239

Convert a Garage - £16,239

Garage - £18,739

Build a flat roof extension - £22,239

Build a dormer loft conversion - £42,239

Concrete foundations - £6,489

Convert a bungalow loft - £29,239

Convert a basement - £40,191