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Commercial HVAC

Commercial Furnace Installation and Repair

Available in Spencer and Rapid City
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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.

  • "I spoke to Tom about some work I was considering having done at my home. I was very impressed with how knowledgeable, honest and upfront he was when he provided options and went over the pros and cons. Other companies I've called wanted to charge me $50 just to give a quote. If you need work done at your home I recommend you call Tom at Midwest Mechanical."

    - J K, Sioux Falls
    ★★★★★

  • "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 sewage started backing up into our basement, we were panicked. They were here within 45 minutes, even on a Saturday evening. The crew worked through the night to get everything flowing properly again and cleaned up everything perfectly. You can tell they really care about doing things right."

    - Mike T., Spencer
    ★★★★★

  • "Our water pressure had been getting worse for months, then one morning we had almost no water at all. They diagnosed a collapsed water line and had us back to full pressure by the end of the day. The crew was professional, clean, and explained everything clearly. Our water has never worked better."

    - Sarah K., Rapid City
    ★★★★★
"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.

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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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