Keystone provides UL-listed assembly services to integrate metal parts, third-party components, and finished subassemblies into fully compliant products. We handle everything from component verification to assembly and packaging to ensure your products meet UL standards.

Our expert team combines decades of experience in fabrication and assembly, guiding projects from initial review through production and quality control to final delivery. By managing the UL assembly process, we help streamline your supply chain and ensure your products are safe, compliant, and market-ready.

Our UL-listed assembly services include:

• Component verification and integration
• Assembly of UL-compliant products
• Coordination with testing and quality control
• Packaging and preparation for shipment

Get UL-Listed Products Faster

Rely on Keystone Fabrication Solutions for UL-listed assembly that meets standards and deadlines. Contact us today to discuss your assembly project and how we can help deliver compliant, ready-to-use products.