100 Years of Expertise

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About Us

Founded in 1933, Hillside Maintenance Supply is a family owned company. We are proud of the relationships we have developed within the industry and with our clients. Our company was founded on the principles of being a service oriented company and a valuable resource for knowledge and training in the field of cleaning and sanitation products and solutions.

With over 30 years in the veterinary industry, in both privately owned hospitals and corporate veterinary companies, the fourth generation of our family has launched Pet ProClean a division of Hillside created to meet the specific needs of animal hospitals, groomers and boarding kennels.


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Tom Glueck - President

Tom Glueck has nearly 50 years’ experience directing operations for the family business of Hillside Maintenance Supply Co. establishing valuable business relationships within the cleaning industry.

Jim Glueck – Vice President

Jim Glueck brings 30+ years of finance and customer development to Pet ProClean. Jim’s dedication to addressing customer needs has helped build Hillside’s reputation as a leader in the cleaning industry.

Alex Glueck – Sales and Business Development

Alex’s involvement in the family business in a variety of roles most of his life gives him the ability to focus upon the individual needs of his customers. He combines his love of animals and passion for ecologically responsible business operations with his LEED certification

Karen Glueck Gerfen – Veterinary Industry Consultant

Karen has over 30 years of experience from starting out in a small town mixed practice, to being the Director of Training and Safety for a publicly-traded veterinary hospital company.   She has developed and implemented a vast number of training programs including a proven OSHA/Safety training system specifically for animal hospitals.