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    Commercial HVAC

    Commercial Furnace Installation and Repair

    Available in Spencer and Rapid City
    Need a Hand?
    24/7 Emergency Service

    It always happens at the worst possible moment…

    • The office building where employees can’t work comfortably in freezing conditions.
    • The retail store where customers leave because it’s too cold to shop.
    • The warehouse where operations slow down due to equipment protecting against cold.

    And suddenly, a warm, efficient space becomes a cold, costly headache.

    When Business Heating Fails, We Restore Operations Fast

    Since 1983, Midwestern Mechanical has kept thousands of businesses operational through reliable commercial heating solutions across Rapid City and Spencer. Our certified HVAC technicians respond when others won’t—holidays, weekends, middle of the night—because we understand that commercial heating failures can shut down entire operations.

    Help is on the way.

    The Midwestern Mechanical Promise

    When your business heating system fails, you shouldn’t have to worry about finding qualified commercial contractors or losing operational time. That’s why facility managers throughout our region keep our number as their heating emergency contact.

    Here’s how simple we make it:

    1. Call anytime your business needs help.
    2. Our dispatch team sends commercial specialists as soon as possible.
    3. You get detailed assessment and transparent pricing.
    4. We restore your hot water with minimal business disruption.
    5. You get back to serving customers (in a space that stays warm, safe, and up to code).

    Don’t risk heating issues or safety violations with unqualified furnace service.

    See our simple
    5-step process

    Right Where Your Business Needs Us

    Our strategically located hubs in Rapid City and Spencer mean your facility gets:

    • Emergency Response: Usually within 60 minutes for critical situations
    • Commercial-grade solutions: Equipment sized for your business demands
    • Compliance expertise: Meeting all commercial codes and regulations
    • Professional service: Uniformed technicians who understand business environments

    SIOUX FALLS, SD

    HEADQUARTERS

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

    Your Commercial Heating Specialists

    Is your facility struggling to maintain comfortable temperatures? Experiencing heating system inefficiencies that affect productivity? Planning expansion that requires upgraded heating capacity?

    Our commercial furnace specialists understand that business facilities require robust heating systems that can handle large spaces and heavy usage demands. We design, install and maintain commercial-grade systems that keep your operations running smoothly regardless of outside temperatures.

    Real Talk from Real People

    Whether it's facility managers recommending us to their professional networks or our employee-owners who've been with us for decades, the professionals who know us best understand what sets us apart.

    • "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 business productivity depends on warmth,
    trust the commercial heating experts."
    24/7 Emergency Service

    Got Questions? We've Got Answers.

    From managing existing systems to planning facility improvements, we’re here to help you understand commercial heating solutions. Here are some of the most common questions we hear from business leaders in our region.

    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.

    Call Now