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High-Performance Doors for Cleanrooms, Cold Storage & Industrial Applications
At ASI Doors, we specialize in engineering and manufacturing high-performance door solutions tailored to meet the demanding requirements of diverse industries. Our product lineup includes high-speed overhead doors, cleanroom sliding doors, and fire-rated systems designed to enhance productivity, safety, and energy efficiency. With a focus on innovation, we deliver durable, low-maintenance doors for cold storage facilities, pharmaceutical environments, cleanrooms, automotive dealerships, and government buildings. Our ISO-Flex series represents cutting-edge technology with damage-resistant panels and high-speed operation.

Backed by decades of experience and a commitment to American craftsmanship, we prioritize reliability and cost-effectiveness while addressing the unique challenges of controlled and refrigerated environments. Our team works closely with clients to ensure solutions meet strict regulatory standards, including FDA, ISO, and GMP requirements. Through continuous improvement and customer-centric service, we maintain our position as a trusted leader in the door manufacturing industry.
Services
High-Speed Overhead Doors Cleanroom Sliding Doors Fire Doors Cold Storage Doors ISO-Flex Series Rigid Roll-Up Doors Ventilation Security Systems Government Facility Doors Automotive Dealership Doors Distribution Center Doors
Highlights and features
  • Engineered & Made in America with patented ISO-Flex technology
  • Specialized solutions for pharmaceutical, biotech, and cold storage environments
  • Compliance with FDA, ISO, GMP, and EMEA regulatory standards
  • Durable, low-maintenance systems reducing lifetime costs
  • Nationwide support with 15 U.S. facilities and global reach
Services
High-Speed Overhead Doors
Our high-speed overhead doors provide rapid access while maintaining environmental controls in industrial and cold storage settings. Engineered for durability, these doors reduce energy loss and improve traffic flow efficiency. Ideal for pharmaceutical facilities and distribution centers requiring frequent access with minimal temperature disruption.
Cleanroom Sliding Doors
Designed for controlled environments, these sliding doors meet cGMP and ISO standards for biotech and pharmaceutical applications. Their seamless construction prevents contamination while allowing smooth operation. Features include airtight seals and easy-clean surfaces to maintain strict hygiene protocols in critical manufacturing spaces.
Fire-Rated Doors
Fire-rated doors offer critical protection in commercial and industrial buildings by containing flames and smoke. Constructed with advanced materials, they provide extended resistance periods while maintaining operational functionality. Compliant with safety codes for government facilities and high-traffic commercial spaces requiring enhanced fire protection systems.
Cold Storage Door Systems
Engineered for freezer and cold storage environments, these doors prevent frost buildup and maintain temperature consistency. Features include thermal break technology and durable components that withstand frequent use. Reduces energy consumption while ensuring operational reliability in food distribution centers and pharmaceutical cold chain facilities.
ISO-Flex Series
The patent-pending ISO-Flex series combines high-speed operation with impact-resistant panels. Designed for high-traffic areas, these doors automatically reset after collisions, minimizing downtime. Ideal for automotive dealerships and manufacturing plants where durability and continuous operation are essential to maintaining productivity and energy efficiency.
Questions
What industries do ASI Doors serve?
We provide specialized door solutions for pharmaceutical, biotech, cold storage, automotive, government, and distribution center applications.
Are ASI doors compliant with regulatory standards?
Our products meet FDA, ISO, GMP, and EMEA requirements for controlled environments and critical manufacturing processes.
How do ISO-Flex doors improve operational efficiency?
The ISO-Flex series features impact-resistant panels that reduce downtime by automatically resetting after collisions in high-traffic areas.
What support options are available?
We offer technical service resources, warranty programs, and dedicated customer support for all our door systems.
Can ASI Doors accommodate custom applications?
Our engineering team designs solutions tailored to specific environmental challenges, including temperature control and security requirements.
Where are ASI Doors manufactured?
All products are engineered and manufactured in the United States at our Milwaukee facility.
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Reviews (1)
Joe Januzzi
May 22, 2021 Report
They do not protect their employees nor do they pay their employees all their money. They do not follow OSHA requirements. Products are improperly built with wrong parts. Do not do business with or work with them.