Welcome to Castle Steel Buildings

Looking for a versatile building at an affordable price?

You've found it!

Specializing in pre-fabricated metal buildings and building products, Castle Steel Buildings brings over 35 years of building experience in Southern California and Arizona.  We service military, government, municipal, industrial, commercial and private customers.

Our buildings are 100% made in the USA and backed by a 25-year rust through warranty. We offer a range of standard and custom sizes and styles. And since you're dealing directly with the factory, we have the ability to manufacturer to your specifications!

Some of our past projects include:
  • Solar Turbines-shipping facility
  • San Diego City School District- book storage facility
  • Waste Water Treatment Facility-operation building
  • Household Hazardous Waste Disposal Facility at Miramar
  • Storage Facilities
  • Emergency Facilities
Skill Sets Include:
  • Full Line Manufacturer
  • All shapes and sizes, including custom
  • Design, Engineering, Fabrication and Construction
  • Maintenance and Repair
We work to provide the highest quality product and services in the industry at a reasonable price. Home