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    Your Plumbing and HVAC partner in

    Rapid City, SD

    Since 2010, our Rapid City team has proudly served the Black Hills with expert plumbing and HVAC services. With 55 employee-owners strong, we treat every customer like family—whether it’s an emergency call or a new furnace install, we’re here when you need us most.

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    Services Offered in Rapid City

    Plumbing, HVAC and design-build expertise with that hometown heart. Our Rapid City team brings decades of mechanical contractor experience to keep your home and business running smoothly—from repairs and installs to full-scale system design.

    Plumbing

    Rapid City Services

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

    HVAC

    Rapid City Services

    Furnace repair, A/C installation, commercial heating and cooling—we design, install and maintain systems that keep you comfortable year round.

    Design-Build

    Rapid City Services

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

    SIOUX FALLS, SD

    HEADQUARTERS

    4105 N Lewis Ave, Sioux Falls, SD 57104
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    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."

    • "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."

    • "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."

    • "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."

    • "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."

    Proud of Our People, Proven by Results

    We are excited to share our lastest achievements and news!

    Awards and Certifications

    PHCC Educational Foundation Convention 2025

    Midwestern Mechanical Apprentices Shine at the South Dakota PHCC Educational Foundation Convention! This year, we had an incredible showing with four of our apprentices competing: HVAC Apprentices: Jantzen Fisher & Trigg LaPlante. Plumbing Apprentices: Cody Green & Trevor Streuli. A huge congratulations to Cody Green (Plumbing) and Jantzen Fisher (HVAC) for taking home First Place in their respective competitions! Cody and Jantzen will now advance to the PHCC National Apprentice Competition this fall.

    Got Questions? We've Got Answers.

    Whether it's a furnace emergency or planning your HVAC upgrade, our Rapid City team makes complex mechanical systems simple for Black Hills property owners.

    • Do you offer 24/7 emergency service?

      Absolutely—emergency plumber and HVAC technicians available around the clock because breakdowns don’t wait for business hours. 

    • What areas do you serve from Rapid City?

      Our Rapid City location serves the metro area plus Box Elder, Black Hawk, Summerset, Hill City, Custer, Spearfish—throughout the Black Hills region where you need reliable plumbing and HVAC services.

    • Can I get a quote online?

      You can start the process online by clicking “Get a Quote” below, and our Rapid City team will call you with your free estimate. For immediate assistance, call us directly at 605.394.9636.

    • What kinds of systems do you install and service?

      Complete plumbing systems, water heater installation and repair, furnace repair and installation, AC installation and service, plus commercial HVAC for businesses throughout the Black Hills.

    • Do you work on residential and commercial projects?

      Both! From home furnace repair to complex commercial HVAC installations. Same family-focused care, whether it’s your bathroom remodel or your business climate control needs.

    • How long have you been in business?

      Founded in 1983, Rapid City location since 2010. That’s 40+ years of mechanical contractor expertise and 14+ years serving as your trusted Rapid City neighbors.

    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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