Welcome To McWhirter Steel

California's Most Reliable Structural Steel Fabricator and Erector

Pre-Construction Detailing

BIM Modeling/Detailing

Our detailers use state of the art software technology to provide accurate drawings and 3D modeling for our clients.

Steel Fabrication

Steel Fabrication

We are very diverse and can handle fabrication projects from the smallest level to mid rise buildings.

Building Erectors

Erection

McWhirter Steel was a large union erector for many years and has had over 70 union ironworkers working throughout CA.

Recent Projects