About Us

Headquartered in Milwaukee Wisconsin, Enviro® doors is a division of ASI Technologies, Inc. As a leading manufacturer of high performance door systems for over 40 years, ASI has proven its expertise through innovative design and unmatched reliability. Utilizing fiberglass molding techniques originally developed for the boat manufacturing industry, ASI designed totally seamless fiberglass door panels for food processing and cold storage applications.
ASI (Arthur Smith Industries) was established in 1965 by Arthur Smith III, grandson of the founder of the A.O. Smith Corporation. Mr. Smith began manufacturing cooler and freezer doors made of fiberglass for the food industry, under the ENVIRO® brand name. Fiberglass doors had the advantage of being strong, lightweight and easy to clean. But the company’s growth did not occur until it was purchased by George Balbach in 1974. At that time, ASI was the only U.S. manufacturer of fiberglass doors for the food industry. In 1981, ASI responded to another market demand, and patented a hydraulically powered door operation system that vastly improved the speed and reliability of its automatic doors.
ASI is the leading manufacturer of ENVIRO cold storage doors, providing cooler and freezer doors in a wide variety of styles and materials: infitting hinged doors; single and bi-parting horizontal sliding doors; vertical rise doors; and bi-folding panel doors. In 1999 the new “PRO” series was added to the Enviro line in response to the market for a high performance, economical line of doors.
In 2001 the ENVIRO AirSeal® air door was introduced revolutionizing the material handling function in coolers and freezers throughout the food industry. With no maintenance, no downtime, and no waiting time, the AirSeal air door is becoming the product of choice in all major food processing facilities.
2003 was a year of high technology and unmatched solutions in the door industry with the introduction of the ENVIRO IXP™ Impactable Door. Nowhere in the industry has a door with these outstanding features been so well received by the marketplace. Responding to the number one concern in many cooler distribution and processing centers, damaged door systems, ASI has designed a hard panel insulated door system that can be hit from either direction and return to its normal operating position within seconds.
2007 marks the introduction of Enviro's new XP line. Arguably, the biggest change in cooler/freezer doors in 25 years, this new series is designed to exceed the offerings of other door manufacturers, yet is priced to meet demanding budget constraints.
Learn more about the XP series.
