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honest & friendly service
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honest & friendly service
why choose paradigm
We are Residential and Commercial Installation & Service Experts!
We're hard-working, dedicated and trustworthy.
We take pride in our work.
We'll treat your home like its our own home.
We're respectful of your time and your budget.
We're fast, friendly, and efficient.
We love what we do, and we do it well.
We live, work, and play where you do. ​
Your neighbors are already our customers. We want you to be our customer too! Reviews ›
In 2008, Joe Sullivan and Aron Gerdan started Paradigm Plumbing & Mechanical in Joe’s basement in Ferndale. Both had years of plumbing, mechanical, and construction experience, and the pair quickly began fulfilling plumbing installation needs and finding their niche working with builders and homeowners throughout Metro Detroit. Paradigm has grown to be one of the leading residential and commercial installers and service providers in the region, and its ever-expanding customer base can be attributed to expert knowledge and honest & friendly service. The Paradigm Plumbing & Mechanical and Paradigm HOME Service teams are qualified, insured, and ready to get to work.
The Paradigm Leadership Team
Joe Sullivan was born and raised in Ferndale, Michigan, and if you know Ferndale, you know the Sullivan name. Both Joe’s father, Joe, and his uncle Pat, served as chief of police and his mother’s father was also on the police force. Along with graduating from Ferndale High, Joe and his family have never left Ferndale. The dedication and lineage to this small hamlet run deep.
While committed to the community, Joe is the “outlaw” in the family, choosing to start his own business.
Aron Gerdan got into plumbing by chance. While on a job with Joe, a friend and fellow plumber asked them for help on a big roof drain project. “It kind of stuck from there,” he says of getting into the business. Today he thrives on the fact Paradigm provides the best product available for commercial and residential customers. He says the combined knowledge of the team and how well they work together is what makes the Paradigm difference.
Aron and Joe met via a mutual friend in 1997, started working together, and decided to open their own business. Aron has been learning and refining his craft ever since, whether on the job, through classes, or at supplier workshops.
Born and raised in Pleasant Ridge, Aron moved to Berkley after high school and then settled in Ferndale. Two years ago, he moved back to Pleasant Ridge on the same street where he grew up.
When he’s not working, Aron collects old skateboards, BMX bikes, and other collectibles.
Kevin Leitheim began his plumbing career right after high school, working on new construction projects. In 2008, during the recession, he made the move to the service side of the trade—a decision that shaped his future. “I knew there would always be a need for service, no matter how shaky the economy was,” Kevin says. “What I love most is going from house to house and knowing that at the end of the day, I’m helping people.” Within a few years, Kevin realized plumbing wasn’t just a job—it was a long-term career with bigger opportunities ahead. “That’s when I met the ‘boys’ from Paradigm.” In 2018, Joe and Aron entrusted Kevin with launching the HOME Service division. Since then, he has achieved several personal and professional milestones, including earning his Journeyman license and completing advanced supplier training in areas such as tankless water systems and confined space work.
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Over his years with Paradigm, Kevin has grown into a leader, mentor, and dependable team player.
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Kevin lives in Oak Park with his daughter in their first home. “My second home is at Paradigm.”
