Senneca Holdings is a diversified management and holding company whose companies are focused on the specialty door industry. Senneca oversees the operations of its companies, allocates resources among them, and helps to improve the performance of its operations. Senneca seeks out acquisition opportunities that strengthen their our position in a business segment as well as companies that will diversify our portfolio of specialty doors.


Chase Industries, Inc., founded by Chase Blum in 1932, pioneered the original flexible AirGard Door with its unique top-mounted-only gravity hinging system. Chase was acquired in 1999.


David Eliason, the son of founder, Carl Eliason, created the Easy Swing hinge in the early 1960’s. The Easy Swing hinge is one of the most popular hinges on the market today and is what gave Eliason the reputation of unsurpassed quality and dependability. Eliason was acquired in 2012.


Founded by Lon McCarty in Portland, Oregon, Econo Max Manufacturing is one of only three companies in the United States to extrude clear vinyl strip material used in the fabrication of strip doors. Econo Max was acquired in 1997, and became a Chase branded product in 1998.


Durus Industries was founded in Bend, Oregon in 1973 by Larry Zettle and Jim Brown. Durus Industries manufactured the world’s first rotationally molded cross-linked polyethylene door and was acquired in 1986. Durlite became a Chase branded product in 1991.


Rubbair was founded by the Eckel family and began manufacturing double acting traffic doors in 1952. Rubbair pioneered the only rubber frame traffic door in the marketplace. Rubbair was acquired in 2015.


ColdGuard originated from Staples and Stevens in 1977 in Tampa, Florida. they had a 16,000 sq/ ft/ facility that was dedicated to manufacturing cooler and freezer doors. Since being acquired in 2007, the square footage has more than doubled in size for ColdGuard.


Founded in 1988 by Joseph and Annie Kleynjans, TMI is a leading manufacturer and seller of various PVC and safety products. PVC products include, flexible and rigid sheets, rolled goods, insect screen, roll up doors, and weld and cold storage curtains. Safety products from the Save-T Solutions™ line, provide industrial dock, door and warehouse solutions for the overhead door and material handling industry.