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    Your Plumbing, Fire protection and Design Partner in

    Sioux Falls, SD

    Headquartered in Sioux Falls since 1992, our team of 143 employee-owners has built the largest non-union mechanical contractor in the region. From plumbing and fire protection to design, we bring trusted expertise and reliable service to homes and businesses across the area.

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    24/7 Emergency Service
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    Services Offered in Sioux Falls

    Three specialties, four decades of expertise. Our Sioux Falls headquarters delivers the full scope of mechanical contractor services with the neighborly care that made us who we are.

    Plumbing

    Sioux Falls Services

    From leaky faucets to full-scale commercial systems, our licensed experts handle it all with precision and pride.

    Residential Commercial

    Fire Protection

    Sioux Falls Services

    Fire sprinkler systems done right—because safety isn't optional. From install to inspection, we've got you covered.

    Multi-Family Commercial

    Design-Build

    Sioux Falls Services

    BIM modeling, CAD plans and prefabrication built in house to streamline and simplify commercial plumbing installs.

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    Brands We Trust

    SIOUX FALLS, SD

    HEADQUARTERS

    4105 N Lewis Ave, Sioux Falls, SD 57104
    Mon - Thur: 8:00 a.m. – 5:00 p.m
    Friday: 8:00 a.m. – 4:00 p.m.
    24/7 Emergency Services
    Click markers to view other locations

    Real Talk from Real People

    Whether it's customers singing our praises or employees who've stuck with us for decades, here's what folks are saying.

    • ""Very polite and respectful of me and my home!""

      - Lourene, Spencer
      ★★★★★

    • "We truly appreciate Midwestern Mechanical and consider their contribution to our project invaluable. Their can-do attitude and ability to communicate with all team members are far too uncommon in today's industry."

      - Mark P., Hospital Project Manager
      ★★★★★

    • "The service and care we received from Midwestern Mechanical was excellent! Our home is large and over 100 years old, which can pose challenges for plumbing repairs. Our technician Jamie is knowledgeable, friendly and efficient."

      - Linda H., Local Customer
      ★★★★★

    • "Midwestern Mechanical's BIM modeling capabilities saved our hospital project significant time and money. Their virtual construction coordination identified and resolved conflicts before we reached the field, and their fire protection design expertise ensured we met all healthcare facility requirements. The entire process was seamless from design through completion."

      - David P., Project Manager, Rapid City
      ★★★★★

    • "When our water heater died on a Sunday morning with three kids needing baths, they were at our house within an hour. The technician explained everything clearly and had us back up and running the same day. Being employee-owned really shows—they care about our family like their own."

      - Amanda J., Sioux Falls
      ★★★★★

    Proud of Our People, Proven by Results

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    Awards and Certifications

    MWM SkillsUSA Champion Takes Apprenticeship to the Top

    Last November, Jantzen Fisher (out of our Rapid City branch) was named the 2025 HVAC Apprentice of the Year by the Plumbing-Heating-Cooling Contractors – National Association (PHCC). The award, sponsored by Rheem, was presented during PHCC CONNECT 2025 in Grand Rapids, Michigan. Fisher’s apprenticeship and scholarship obligations are now fulfilled. As a journeyman, he plans to stay with Midwestern Mechanical but is considering a move to a smaller town.

    Current Promotions

    Got Questions? We've Got Answers.

    Whether it's a midnight water heater emergency or planning your next commercial project, our Sioux Falls team makes complex mechanical systems simple.

    • How long have you been in business?

      Founded in 1983, Sioux Falls headquarters since 1992. That’s 40+ years of mechanical contractor expertise and 30+ years serving as your trusted Sioux Falls neighbors.

    • Do you offer 24/7 emergency service?

      Absolutely—emergency plumber available around the clock because plumbing crises don’t wait for business hours. Call 605.221.0958 and we’ll be on our way.

    • What areas do you serve from Sioux Falls?

      Our headquarters serves Sioux Falls metro plus Brandon, Harrisburg, Tea, Mitchell, Brookings, Yankton—basically anywhere within 90 minutes where you need reliable mechanical contractor services.

    • Can I get a quote online?

      You can start the process online by clicking “Get a Quote” below, and our Sioux Falls team will call you with your free estimate. For immediate assistance, call us directly at 605.339.3963.

    • What kinds of systems do you install and service?

      Complete plumbing systems, water heater installation and repair, fire protection with sprinkler systems, medical gas for healthcare facilities, plus design-build commercial projects.

    • Do you work on residential and commercial projects?

      Both! From home plumbing emergencies to million-dollar hospital fire protection systems. Our residential fire protection services are offered for multi-family homeowners only. Same family-focused care, whether it’s your kitchen faucet or your facility’s compliance needs. 

    Need a Hand?

    We've got you. For everyday service or a big project, hit the button below and we'll get the ball rolling.

    Get a Quote

    Emergency Services

    Need help right now? Our crew's on call 24/7—just tap the button below and we'll be on our way.

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