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    Residential Plumbing

    Residential Backflow Prevention

    Available in all locations
    Need a Hand?
    24/7 Emergency Service

    It always happens without warning…

    • Contaminated water flowing backwards through your home’s plumbing system.
    • Lawn chemicals mixing with your family’s drinking water during pressure drops.
    • Unsafe water reaching your kitchen faucets when you least expect it.

    And suddenly, your family’s health and safety are at risk from invisible threats.

    Clean Water Protection Is Our Priority.

    Since 1983, Midwestern Mechanical has protected over 50,000 families from water contamination through proper backflow prevention. Our ABPA and ASSE certified technicians ensure your home’s water stays pure—because we understand that your family’s health can’t be left to chance.

    Help is on the way.

    The Midwestern Mechanical Promise

    When it comes to your family’s water safety, you shouldn’t have to worry about compliance or contamination risks. That’s why homeowners throughout our communities trust us with their annual backflow testing requirements.

    Here’s how simple we make it:

    1. Call anytime, day or night.
    2. Our friendly dispatcher sends the nearest expert.
    3. You get upfront pricing before any work begins.
    4. We solve your problem and restore your peace of mind.
    5. You get back to your life (with properly working plumbing).

    Don’t risk your family’s water safety with unqualified testing.

    See our simple
    5-step process

    Right Where You Need Us

    Our four strategically located hubs across Sioux Falls, Rapid City, Sioux City and Spencer mean we guarantee:

    • Same-Day Service: Usually within 60 minutes for emergencies
    • Upfront, no-surprise pricing: Know the cost before we start
    • Lifetime workmanship warranty: If it’s not fixed right, we’ll make it right
    • Clean technicians who respect your home: We’ll leave your space cleaner than we found it

    SIOUX FALLS, SD

    HEADQUARTERS

    4105 N Lewis Ave, Sioux Falls, SD 57104
    Click markers to view other locations

    Your Water Safety Specialists

    Required annual testing coming up? Noticed water pressure changes? Installing a new sprinkler system that requires backflow protection?

    Our residential backflow prevention specialists understand that protecting your family’s drinking water is serious business. We’re fully certified to test, repair, and install backflow prevention devices that keep contaminated water from ever reaching your family’s faucets.

    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.

    • "Our manufacturing facility's sump pump system failed during a weekend storm, and water started flooding our equipment storage area. Midwestern Mechanical responded immediately, even on Sunday night. They pumped out the water, installed a new high-capacity commercial system with dual pumps and battery backup, and completed everything before our Monday shift. Their commercial expertise saved us thousands in potential equipment damage and production delays."

      - Facility Manager, 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
      ★★★★★
    "When protecting your family's water,
    trust the people who care."
    24/7 Emergency Service

    Got Questions? We've Got Answers.

    Whether you're new to backflow requirements or dealing with a failed test, we're here to help you understand how to keep your family's water safe. Here are the questions we hear most from families in our communities.

    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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