Welcome to Merten Plumbing & Heating Inc.
Your trusted partner for plumbing and Hydronic services in Oshkosh, Wisconsin. At Merten Plumbing & Heating Inc., we don’t just repair systems—we build relationships. With five generations of plumbing experience and a commitment to lifetime customer care, our mission is to deliver simple, reliable, and lasting solutions for every home and family we serve.
Read Our Customer Reviews
Michelle
We had an emergency call on the weekend, and they promptly answered and had someone over right away with a new sump pump. We also used them a couple of years ago when our water heater went out and we received the same excellent service. Highly recommend them.
Chelsea
We had a emergency plumbing situation over the weekend and they promptly answered our call, walked us through how to manage it until they arrived and quickly got us in. Robin was extremely friendly, quick and helpful completely resolving our situation.
Mary Kay
Matt is awesome! He is very good at his job and comes as quickly as humanly possible to take care of his customers! Very professional and dependable! I highly recommend him!
A Legacy You Can Count On
Our story starts over a century ago, when the first generation of Merten plumbers began serving the Oshkosh community with hard work and honesty. Since then, our family-owned business has grown and evolved, but our values have remained the same: do the job right, treat every customer like family, and stand behind our work.
We believe that success isn’t measured in service calls or invoices—it’s measured in trust. That’s why we don’t chase high-volume jobs or one-time projects. Instead, we focus on building long-term relationships, where customers come back to us again and again because they know we care. From emergency repairs to full-system installations, we’re here for you at every stage of homeownership.
Complete Plumbing Services in Oshkosh, WI
Whether you’re dealing with a leaky pipe, planning a bathroom remodel, or need a new water heater installed, Merten Plumbing & Heating Inc. has you covered. Our plumbing team brings expert craftsmanship and a deep knowledge of local building codes, water systems, and fixtures to every project we take on. We provide residential and light commercial plumbing solutions, always aiming for long-term functionality, efficiency, and safety. No shortcuts, no guesswork, no surprises.
Plumbing Services We Offer
- General plumbing maintenance and troubleshooting
- Water heater repair and installation (tank and tankless)
- Faucet, sink, and fixture installation
- Bathroom and kitchen remodeling plumbing
- Sewer line cleaning and repairs
- Pipe repair, replacement, and rerouting
- Garbage disposal service and replacement
- Water pressure diagnostics and correction
- Drain cleaning and unclogging
- Sump pump installation and maintenance
- Battery backup sump pump
- Backflow prevention
- Water filtration and softener installation
We understand that plumbing problems are more than just inconveniences—they affect your quality of life. That’s why we’re committed to responding quickly, fixing the problem thoroughly, and explaining your options clearly.
We Don’t Turn Down Jobs
Big job or small, we’ll be there. We’re proud of our “no-pass” approach, which means we take on everything from quick fixes to major overhauls. Whether it’s replacing a shutoff valve or re-plumbing an entire home, we give every job the attention and care it deserves.
We understand that every homeowner’s needs are different. That’s why we tailor our services to fit your space, your budget, and your long-term goals. Our goal is that you are completely satisfied.
Emergency Plumbing Services
For our returning customers, we offer 24/7 emergency plumbing services. If your pipes burst in the middle of the night, you won’t be left scrambling for help. Because you’ve trusted us before, we’ll be there for you when you need us most—no matter the time or day.
When it comes to emergencies, speed matters. But so does skill. We bring both.
Dependable Heating Services to Survive Wisconsin Winters
When winter hits Oshkosh, you need a heating system that’s ready to perform. From boiler repairs to radiant floor heating installations, Merten Plumbing & Heating Inc. is your go-to source for comprehensive heating services.
We understand how critical heat is during the colder months, which is why we offer fast service, dependable repairs, and energy-efficient solutions that keep your home warm without sending your utility bills sky-high.
Heating Services We Provide
- Boiler repair, replacement, and installation
- Radiant floor heating systems
- Thermostat troubleshooting and installation
- Whole-home zoning systems
Servicing All Major Brands
We service all major brands and offer options for both traditional and modern heating systems.
Whether your home is older with baseboard radiators, we have the expertise to keep it running smoothly.
Emergency Heating Repairs
Frozen pipes. Broken Boilers. No heat at midnight. When your system fails, you don’t have time to wait. That’s why our repeat customers get 24/7 emergency heating services. You won’t find yourself shivering through the night when you’ve got Merten Plumbing & Heating on your side.
Energy Efficiency and Smart Upgrades
Today’s heating technology is smarter, quieter, and more efficient than ever before. We can help you upgrade to a high-efficiency boiler or switch to a zoned system for better control and comfort. Let us help you reduce your carbon footprint while improving your home’s performance.
What Makes Merten Plumbing & Heating Inc. Different?
In a crowded industry, what makes us stand out? It’s simple—we treat your home like it’s our own, and we treat you like family. Here are just a few of the ways we go above and beyond:
A True Family Business, Five Generations Strong
Customer Relationships Over Quick Sales
Deep Local Expertise
A Seamless and Stress-Free Experience
We believe plumbing and Hydronic heating shouldn’t be complicated. That’s why we’ve designed our process to be simple, transparent, and convenient from start to finish.
Call
Us
Call us at 920-231-6795 to request service.
Simple Navigation & Communication
Our website is designed to be easy to use. Whether you’re browsing services, reading about our team, or scheduling an appointment, you’ll find the information you need without confusion or clutter. Questions? Concerns? We’re always available to talk through your options.
Honest Pricing
Each job is different and can vary in cost depending. Some work is time and material but some jobs can be estimated. You’ll get clear, honest pricing to the best of our ability. We explain what we’re doing, why we’re doing it, so you’re never caught off guard.
Rooted in the Oshkosh Community
Oshkosh isn’t just where we work—it’s where we live, raise families, and invest in the future. We’re proud to be part of a vibrant, growing community with small-town charm and big-time potential. We’ve worked in homes near Lake Winnebago, by the University of Wisconsin-Oshkosh campus, and throughout the neighborhoods surrounding Menominee Park. We know the city’s homes, infrastructure, and weather patterns like the back of our hand.
Supporting Oshkosh means more than just business. It means showing up, giving back, and staying involved. We’re committed to helping our neighbors thrive—one home, one family, and one project at a time.
Your Trusted Partner for Plumbing and Hydronic Heating
At Merten Plumbing & Heating Inc., we’re not interested in flash or gimmicks. We believe in hard work, fair prices, and real relationships. When you choose us, you’re choosing a partner who’s in it for the long haul. From our family to yours—thank you for trusting us with your home.
Ready to Get Started?
Let’s talk about your needs and how we can help. Whether you’re facing an urgent problem or planning your next upgrade, Merten Plumbing & Heating Inc. is ready to get to work. Call us today to schedule a service, request a quote, or ask a question. Our team is here to serve you with honesty, professionalism, and a commitment to excellence.
Serving the following areas:
Oshkosh, WI and the surrounding areas.