Our Services.

Professional Metal Fabrication & Installation

We specialize in fabricating and installing high-quality steel components designed to last. Our team delivers precision-crafted solutions for a wide variety of applications, including:

  • Custom metal fences (decorative, privacy, or security)

  • Chain-link fences with optional privacy slats

  • Manual and automated gates

  • Handrails, guardrails, and stair railings

  • Architectural steel features

Fabrication is performed in-house at our Monrovia facility, allowing us full control over quality, customization, and turnaround. Our experienced installers ensure every piece is delivered and secured to exact standards.

Innovative Steel Design-Build Services

Our design-build services allow you to streamline your project from start to finish under one roof. We collaborate closely with architects, engineers, and general contractors to provide:

  • Pre-construction planning

  • Structural steel design consultation

  • Shop drawings & submittals

  • Coordination with trades and site crews

This approach ensures seamless communication, improved timelines, and cost-effective solutions—making us a trusted partner for complex steel projects.

Structural Steel Fabrication & Erection

With our C-51 Structural Steel Contractor’s License, Hanneyan Steel is fully qualified to take on small to mid-sized structural steel projects. We fabricate and erect:

  • Steel columns and beams

  • Moment frames

  • Steel bracing and embeds

  • Mezzanines and platforms

  • Stair systems and decking

Every structural component is fabricated with strict compliance to industry codes and standards, and installed with precision by skilled professionals on-site.

Sandblasting & Powder Coating (In-House)

We are proud to offer in-house sandblasting and powder coating services, which means your metal components are finished and protected to the highest standard—without relying on a third-party provider. Our services include:

  • Surface prep via industrial-grade sandblasting

  • Durable powder coating in various colors and textures

  • Corrosion-resistant finishes for outdoor and structural use

This full-service capability saves time, ensures quality control, and delivers a long-lasting, professional finish on every piece we fabricate.

Custom Metal Solutions

Have a unique idea or specialty need? We can help you bring it to life. Our custom metalwork services include:

  • Architectural design elements

  • Sign frames and branding structures

  • Custom brackets, embeds, and mounting systems

  • Specialized gates, grilles, and screens

From one-of-a-kind designs to small-run production, our shop has the flexibility and craftsmanship to make it happen.