Sterling Mainz & Sons Plumbing

Where Plumbing is an Art and Service is a Pleasure

More Than Half a Century of Quality Plumbing Services

Sterling Mainz & Sons Plumbing is a family-owned & operated, fully licensed & insured plumbing company located in Oconomowoc, WI. For more than 60 years, we’ve made it our mission to pair our rich industry knowledge with outstanding customer communication, resulting in exceptional service. When you need a new water heater installed, your toilet or shower fixed, or a professional drain cleaning, count on our plumbers to do it right every time!

Committed to Our Customers

At Sterling Mainz & Sons Plumbing, we are committed to providing expert results in a timely fashion. We take pride in our decades of experience in all things residential plumbing, water heaters, and inspections. Whether it is an installation or repair, we are highly skilled and ready to handle your plumbing needs. Our team of dedicated plumbers is here to make sure the job gets done right.

Plumber in Oconomowoc, WI


Plumber in Oconomowoc, WI


Plumber in Oconomowoc, WI


See Why Your Neighbors Love Us!

“I called them in an emergency-type need and within an hour they were on the way. Super fast and responsive, very friendly and compassionate to my situation, and tidy too!! Thank you!”

— Roxanna K.

“Excellent quality plumbing work and service. They have done work at my condo several times over the past few years and have always done great work that has remained fixed. Very friendly and helpful with service and answering questions.”

— Gary S.

“Sterling Mainz has done so much for us. They have put on a new shower door and also fixed a leak in the pipes downstairs in our basement. Their technicians are the best there is! The quality of work they do is excellent.”

— Jen R.

“Nothing but praise for this business. Both times they got to my home in a short amount of time to handle an emergency. Different problems each time and both were solved quickly and professionally, for which I was extremely grateful. Always someone to answer your call which was another major plus!”

— Susan H.

To learn more about the services we provide, please contact us or call 262-567-4478 today!