Alarm Lock

Alarm Lock Systems, a division of NAPCO Security Technologies, has been a trusted name in electronic access control for over 40 years. Best known for the legendary Trilogy line of standalone and networked keyless locks, Alarm Lock delivers BHMA Grade–1 durability across PIN-code, proximity, and multi-technology credential platforms. Their solutions serve commercial, healthcare, education, and retail applications, with products designed for rugged performance including vandal-proof metal keypads and long-life battery operation. As a member of the U.S. Green Building Council, Alarm Lock maintains LEED compliance across its product line and is sold exclusively through independent locking and security distributors.

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Since 1938, American Doors has supplied commercial doors, frames, and hardware across the U.S., growing from a Houston-based distributor into a multi-market platform serving contractors throughout Texas and Colorado. Family-owned for more than 85 years, we emphasize continuity and craftsmanship, with AHC-certified hardware specialists and experienced estimators delivering fully coordinated Division 8 and Division 10 solutions from specification through installation.

1 (713) 681-8047

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American Doors is part of Riverbend Industries, a family-owned industrial group focused on building durable, operating businesses.

Riverbend partners with management teams for the long term—investing in people, systems, and manufacturing capability while preserving the culture and accountability that make each business successful.

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