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Mommaerts Plumbing, Inc.

"Plumbing Experts Serving Oconomowoc And Surrounding Areas For Over 20 Years"

About Us

Mommaerts Plumbing, Inc. has been Oconomowoc’s trusted plumbing specialist since 1998, proudly serving homeowners and businesses throughout Waukesha County and the Lake Country area. With decades of hands-on experience, we provide comprehensive plumbing services designed to keep your home running smoothly and efficiently.

From water heaters and sump pumps to garbage disposals, fixture replacements, leak repairs, and full-system troubleshooting, our team is equipped to handle a wide range of plumbing needs with precision and care. Every service call is backed by our commitment to quality workmanship, honest communication, and complete customer satisfaction.

As a locally owned company, we take pride in delivering dependable service and building long-term relationships within our community. When you need reliable plumbing expertise you can count on, Mommaerts Plumbing, Inc. is here to help.

Reach out today to experience the exceptional service that has set us apart since 1998.

Areas Served

Waukesha County, WI | Oconomowoc, WI

Our Certifications

What We Offer

Our Specialties include:

Our Services include:

Our Products include:

Testimonials

On 7/29/2025 Alan Ericksen had this to say:
Wish I was able to give 10 stars! My parents and I have relied on Andy for years, nobody does it better. Just can't say enough about both communication and service. Much kudos to Mommaerts plumbing.

On 2/12/2025 Dan Heiden had this to say:
If you want quality service call Andy. Testimonial written by Dan Heiden on this site.

On 5/2/2024 Kitty O. had this to say:
AWESOME customer service!! Andy & helper had a great sense of humor & did a fantastic job.

On 9/4/2022 MVPMAN12 had this to say:
OUTSTANDING QUALITY AND SERVICE! I cannot thank Andy and his team enough for the work they just did. They just installed a Navien tankless water heater and a Capital water softener and I've never had a better set up! Not only did they re-route our plumbing, they did a phenomenal job of ensuring the old stuff (water heater and water softener) were safely and properly hauled away. If you want decades of in-depth job knowledge, high level professionalism and the top of the line products, Andy and his team at Mommaerts Plumbing, Inc. is the route to go!

On 7/18/2022 Karmen Lehman had this to say:
These guys are the best! I wouldn’t dream of using anyone else. Nothing but great things to say about them.

Contact Us

Mommaerts Plumbing, Inc.
Oconomowoc, WI 53066
Phone: (262) 567-5720
Email: mommaertsplumbing@hotmail.com

Servicing the Lake Country area

Where To Find Us

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Payment Types Accepted

Visa, MasterCard, American Express, Discover, Personal Checks, Debit Cards

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 7:00 AM - 3:00 PM
Tuesday: 7:00 AM - 3:00 PM
Wednesday: 7:00 AM - 3:00 PM
Thursday: 7:00 AM - 3:00 PM
Friday: 7:00 AM - 3:00 PM

FAQ

What types of plumbing services do you provide?
We offer a full range of residential plumbing services, from routine repairs to complete system installations. This includes fixing leaks, repairing or replacing fixtures, clearing drains, installing water lines, addressing low water pressure, repairing toilets, and troubleshooting complex plumbing issues. Our team is equipped to handle both older homes and modern plumbing systems with precision and care.

Are your plumbers licensed and experienced?
Yes. Our team consists of licensed, highly trained plumbing professionals with extensive experience in residential plumbing systems. We stay up to date on industry standards, safety practices, and modern plumbing technologies to ensure every job is completed with accuracy and care.

Do you offer emergency plumbing services?
Availability may vary, but we make every effort to assist customers quickly when urgent plumbing issues arise, such as major leaks, water heater failures, or sump pump breakdowns. Calling our office directly is the best way to check immediate availability and response times.

What areas do you serve?
Mommaerts Plumbing, Inc. proudly serves Oconomowoc, WI, Waukesha County, and the broader Lake Country area. Our service region includes residential neighborhoods, lake homes, rural properties, and small businesses. Whether you’re located in downtown Oconomowoc or in the surrounding communities, our team provides prompt, reliable plumbing service you can count on.

Do you repair and replace water heaters?
Yes. We service and install traditional tank water heaters and high‑efficiency models. If your water heater is leaking, producing rusty water, making unusual noises, or failing to keep up with demand, we can diagnose the issue and recommend the most cost‑effective solution. We also provide guidance on when replacement is more practical than repair.

Do you install and repair sump pumps?
Absolutely. We install, repair, and replace sump pumps to help protect your home from basement flooding and groundwater intrusion. If your sump pump is running continuously, failing to activate, or showing signs of wear, we can inspect the system and ensure it’s functioning properly. We also advise homeowners on backup options for added protection.

Can you repair or replace garbage disposals?
Yes. We repair jammed, leaking, or non‑functioning garbage disposals and install new units when replacement is the better option. Our team ensures your disposal is installed correctly, safely wired, and operating efficiently to prevent future issues.
Do you handle plumbing for remodels and new construction?
Yes. We provide complete plumbing installation for kitchen remodels, bathroom remodels, basement finishing, and new home construction. This includes rough‑ins, fixture installation, water and drain line setup, and ensuring everything meets local codes. We work closely with homeowners and contractors to deliver clean, efficient, long‑lasting plumbing systems.

How long has Mommaerts Plumbing, Inc. been in business?
We have proudly served the Oconomowoc and Lake Country communities since 1998, bringing more than two decades of experience, craftsmanship, and customer‑focused service to every job. Our long‑standing reputation is built on reliability, honesty, and consistent quality.

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