About Sterling Mainz & Sons Plumbing in Oconomowoc, WI
114 S Main St, Oconomowoc, WI 53066
About the Company
For over 60 years, Sterling Mainz & Sons Plumbing has been the trusted, family-run plumbing service for Oconomowoc homes and businesses. As a third-generation company, our team of master plumbers brings over a century of combined experience to every job, from a simple faucet repair to a complete sewer line installation. We believe in getting it right the first time, which is why we utilize advanced diagnostics like video sewer inspections to accurately pinpoint problems. Fully licensed and insured, we provide rapid, reliable service for both emergency calls and planned installations, ensuring the plumbing in your Oconomowoc-area property functions flawlessly.
Property Service Solutions
- Drain installation
- Hot water recirculation pump repair
- Sewer installation
- Water heater repair
- Sump pump repair
- Water pipe installation
- Garbage disposal installation
- Shower repair
Questions and Answers
My sump pump failed and my Oconomowoc basement is flooding. What should I do?
First, ensure safety by turning off power to the area if water is near electrical outlets. Then, call us immediately. We offer rapid emergency response for sump pump failures, which are a common local issue due to our area's water table. Our technicians can diagnose whether your pump needs a prompt repair or a full replacement to prevent further water damage and get your basement dry.
How can video sewer inspections help with my plumbing problem?
Video inspections allow us to see exactly what's happening inside your pipes without unnecessary digging. For issues like recurring clogs, slow drains, or suspected sewer line damage, we insert a waterproof camera to locate the precise problem—be it a break, blockage, or root intrusion. This targeted approach, used by our experienced team, saves you time and money by ensuring we perform only the repair that's actually needed, right here in Oconomowoc.
What should I consider when replacing my water heater?
Consider the unit's type (tank vs. tankless), fuel source, size for your household's needs, and energy efficiency. As a family-owned business with over 100 years of combined plumbing experience, we guide Oconomowoc residents through these choices. We handle the entire installation process, from removing your old unit to ensuring the new water heater is correctly sized, properly vented, and installed to code for safe, reliable hot water.
Business Location & Hours
| Mon: | 7:30 AM - 5:00 PM |
| Tue: | 7:30 AM - 5:00 PM |
| Wed: | 7:30 AM - 5:00 PM |
| Thu: | 7:30 AM - 5:00 PM |
| Fri: | 7:30 AM - 5:00 PM |
| Sat: | 7:30 AM - 12:00 PM |
| Sun: | Closed |

















