Door Systems, Inc. Email Format

ConstructionCalifornia, United States11-50 Employees

Door Systems, Inc. operates as a full-service provider of doors and smoke-curtain solutions within the construction industry, focusing on containment of smoke and fire for both new projects and existing buildings. The company supports architects with concept design and layout, and assists building owners and engineers in bringing facilities up to code while aiming to reduce ongoing maintenance costs. Its offerings include two exclusive product lines—the DSI Smoke and Fire Curtain System and the Syntegra integrated Door System—represented in California, Nevada, Arizona and select international markets such as Guam and the Middle East.

Headquartered in Placentia, California, the firm positions itself as a specialized partner for fire and smoke containment needs, serving customers in architecture, construction, and building operations. It is a mid-sized organization within the broader construction sector. In 2025, reports indicated that Assa Abloy acquired Door Systems, Inc., reflecting a notable change in ownership within the fire door market.

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