

Structural Steel Fabrication & Erection
© JMG Steel Corporation| Est. 2018
Our Company
Learn about JMG Steel Corporation's journey to becoming a leading name in structural steel and welding services.
JMG Steel Corporation is a licensed and certified structural steel and welding company based in Moreno Valley, California. Our site showcases the full scope of our services — including structural steel fabrication, steel erection, welding, and miscellaneous metals — with real project photos, client info, and contact tools to help general contractors and developers connect with us directly.

Explore our comprehensive range of structural steel fabrication, erection, and welding services—designed to meet the unique demands of each project. Whether you’re building from the ground up or need precision modifications to existing structures, we deliver tailored solutions with unmatched craftsmanship, safety, and reliability. From custom steel components to full-scale installations, we’re equipped to support your project at every stage.

We provide expert steel fabrication and welding services. Every piece is crafted to meet exact specifications, ensuring strength, reliability, and seamless fit for field installation.
Steel Fabrication & Welding
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The team provides reliable steel erection services, expertly assembling structural steel frameworks for commercial and industrial projects.
Steel Erection

We also specialize in miscellaneous metals, providing custom fabrication and installation of handrails, stairs, fencing, trash enclosure doors, and ornamental metalwork.
Miscellaneous Metals

Our team is equipped to handle digital files, field measurements, and specifications provided by general contractors, engineers, and architects. Here to serve and make the journey simpler!
Client Tools
Our Services
Our Expertise
20+
Projects Completed
100+
Clients Served
98%
Client Satisfaction
Certifications
Licensed & Certified
Project Applications
Commercial Buildings
We deliver structural steel framing for commercial projects such as office buildings, retail centers, and mixed-use developments. Our scope includes columns, beams, bracing systems, and decking—engineered for accuracy, efficiency, and seamless integration with other trades.
Industrial Facilities
Our team fabricates and erects structural steel for industrial sites including warehouses, logistics centers, and manufacturing facilities. We handle mezzanines, equipment supports, heavy-duty framing, and overhead structures designed to meet high-load and operational demands.
Multi-Family Residential Projects
We provide structural steel services for multi-family housing, including stairs, balcony framing, guardrails, and trash enclosure frames. Our work meets all safety and building codes while maintaining durability, function, and architectural intent.
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Why Choose Us
01
Certifications
Client Satisfaction
02
Custom Solutions
Tailored Services
03
Dedicated Assistance
Client Focus
04
Support
Dedicated Assistance

Client Testimonials
Learn about our involvement in renovation projects and the value we bring to revitalizing existing structures.
“The quality of work and attention to detail surpassed our expectations. Highly recommended!”
Oswyn Herrera
“Great communication and professionalism throughout the project. A reliable partner for any construction endeavor.”
Alicia Aguilar
“JMG Steel Corporation's commitment to excellence is truly commendable. A pleasure to work with!”
Joshua Levine
Our Partners
NKS Mechanical Contracting Inc.
Ace Ornamental Inc.
Steel Design Builders Inc
Struct- Tech Builders Inc