About Us.
Rooted in Craftsmanship. Driven by Excellence.
Hanneyan Steel is a family-owned and operated metal fabrication and structural steel company based in Monrovia, California. With over 30 years of hands-on industry experience, we’ve built a trusted reputation for delivering high-quality steel solutions across Southern California—including work for UCLA, Balfour Beatty, and several public school districts.
What sets us apart is more than our craftsmanship—it's our story, our people, and our dedication to doing things right.
Raffi Hanneyan, a skilled ironworker with roots in Beirut, Lebanon, founded the company with a simple but powerful vision: to deliver honest, hard work and exceptional metal craftsmanship that speaks for itself. Since founding Hanneyan Steel, Raffi has successfully led and completed projects ranging from custom fences and gates to structural steel builds exceeding $4 million in value. His reputation in the industry is a result of consistency, quality, and a deep respect for the trade.
Our Founder: Raffi Hanneyan
Next Generation Leadership: Sevag Hanneyan
In 2016, Raffi's son, Sevag Hanneyan, joined the company, bringing fresh energy and engineering expertise. Sevag worked in the field alongside his father as an ironworker before earning a Bachelor’s Degree in Civil Engineering from Cal Poly Pomona and obtaining his C-51 Structural Steel Contractor’s License. Under his guidance, Hanneyan Steel has expanded into larger-scale structural steel projects and broadened its service capabilities—while preserving the same dedication to hands-on quality and customer satisfaction.
We believe every steel project—no matter the size—is a reflection of our name and reputation. That’s why we don’t cut corners. We focus on:
Precision: Every measurement matters.
Durability: Our work is built to last for decades.
Integrity: We deliver what we promise, and we stand by it.
Service: We guide clients from concept to completion with clear communication and professional results.
What We Believe
At Hanneyan Steel, we proudly serve general contractors, school districts, municipalities, property developers, and private clients across Southern California. Our long-standing relationships with repeat clients like Pinner Construction, Santa Monica Unified School District, and Temple City Unified School District are a testament to the trust we've earned through consistent performance, professionalism, and quality craftsmanship.
As we continue to grow, we remain committed to the same mission: to be Southern California’s trusted partner in metal fabrication and structural steel services. We blend decades of hands-on experience with forward-thinking solutions—anchored by the family values that define our work.