Safety and Quality



At Horizon, we are proud to have achieved 1,400,000 consecutive hours without time lost due to recordable incidents, a testament to our safety-first culture dating back to 2018. We believe that safety is paramount to our success, and this is reflected in our ongoing efforts to refine and improve our comprehensive safety program. Our team engages in weekly Shop and Field training and awareness sessions, with additional group training and safety award meetings held quarterly. Our current EMR (Experience Modification Rate) stands at .59, continually improving thanks to upgrades in our fabrication facility and the unwavering commitment of our employees. Emphasizing our dedication to safety, most Safety Committee members, shop, and field personnel have undergone extensive training and continuing education programs such as OSHA 30-Hour, OSHA 10-Hour, PPE, Fall Protection, Forklift Driver Training, CPR, and First Aid.



Superior quality craftsmanship has allowed Horizon Glass to rise to the top of Colorado glass fabrication and installation rankings. Our company singlehandedly employees over half of the AGMT Master Glaziers certified in the state and currently stand as the only NACC-Certified company in Colorado.

Horizon Glass will provide a Safety and/or Quality Assurance Program for any project when requested by an architect, owner’s representative, general contractor or property and facilities manager.

Horizon Glass Achieves Milestone as First NACC-Certified Contractor in Colorado

Horizon Glass, a Denver-based commercial glazing contractor, proudly announces its distinction as the first company in Colorado to achieve North American Contractor Certification (NACC). This prestigious certification, recognized by the American National Standards Institute (ANSI), acknowledges Horizon Glass for upholding industry-leading standards in architectural glass and metal subcontracting. CEO Louis Sigman emphasizes the transformative impact of NACC on redefining quality and instilling a heightened sense of accountability throughout the organization. The certification process, involving a meticulous nine-month collaboration with NACC administrators, reaffirms Horizon Glass's commitment to excellence in glazing quality, construction safety, and business operations. With certifications in all eight categories, including interior and exterior entry systems, building envelope low-rise, and active glass, Horizon Glass sets a benchmark for glazing contractors in the state. Building owners, architects, and insurers gain peace of mind knowing they are partnering with a NACC-certified subcontractor, reducing stakeholder risk and ensuring adherence to the highest industry standards. As Horizon Glass celebrates its 45th year, the achievement underscores its dedication to meeting the unique glass needs of clients and navigating Colorado's environmental challenges with precision. For more information, visit Horizon Glass and NACC Program.

Safety and Excellence

Unwavering Commitment to Safety & Quality

Zero-Punch List

As a project is completed, Horizon maintains a "Zero-Punch" philosophy. This means that it is our intent to identify any flaws throughout and insure that the end result lives up to your expectations, ensuring that customer satisfaction and optimum product performance is provided upon turnover.

Early Coordination and Testing

At the onset of each project, we collaborate closely with general contractors and trade specialists. This proactive approach, aided by our use of Isometric 3-D technology in designs, ensures seamless trade integration and prevents any envelope breaches, right from the design phase.

Guaranteed Performance

Every project undertaken by Horizon Glass comes with a quality guarantee. Adhering to the Framing and Glass System Performance Specifications, we make certain that our aluminum curtain wall, storefront, and glazing installations align perfectly with the highest industry standards.

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