About Us

Since 1872 Michigan Supply has been providing wholesale plumbing supplies throughout the state of Michigan to municipalities, contractors, and maintenance teams in many industries. We specialize in commercial and industrial products and also carry a full line of residential plumbing products. Originally started by the Cooley family of law school came our current owners are all local and combine to have over 90 years of experience in the plumbing industry.

Michigan Supply has been part of many large projects throughout its 150 years in operation including providing plumbing for the state capital building, Firekeepers casino, and Jackson National Life Insurance's main office. We work closely with the local plumbers union and recently provided a boiler training system to help train the future generation of Michigan plumbers. Our relationships with Michigan State University, Sparrow Hospital, Michigan Department of Corrections, and many other large entities goes back many successful years. We have a long relationship with many plumbing and mechanical contractors in Lansing and throughout the state. We attribute our success to our stellar customer service and our staffs combined knowledge of the industry which allows us to go above and beyond for our customers on a daily basis. Whether it be putting together a large job or looking up a particular part for a Lochinvar boiler our staff is there to quickly assist our customers.