Menu

Residential HVAC

Residential A/C Installation and Repair

Available in Spencer and Rapid City
24/7 Emergency Service

It always happens at the worst possible moment…

  • The air conditioner that stops working during the hottest week of summer.
  • Strange sounds and warm air when you desperately need cool comfort.
  • Energy bills that soar because your aging system struggles to keep up.

And suddenly, your comfortable home becomes unbearably hot when your family needs relief most.

When Summer Heat Strikes, We Bring the Cool Relief

Since 1983, Midwestern Mechanical has rescued thousands of families from sweltering summers across Rapid City and Spencer. Our certified HVAC technicians arrive when others won’t—holidays, weekends, middle of the night—because we understand that cooling failures can’t wait until “business hours.”

Help is on the way.

The Midwestern Mechanical Promise

When your family’s cooling system fails, you shouldn’t have to worry about finding reliable contractors or enduring the heat. That’s why homeowners across our communities trust us to restore their cool comfort quickly.

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 an A/C system that actually keeps up).

When the A/C goes out, nobody’s happy. Let’s change that.

See our simple
5-step process

Right Where You Need Us

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

  • 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 Home Cooling Specialists

Is your air conditioner blowing warm air instead of cool relief? Hearing unusual noises from your AC unit? Noticing some rooms stay warmer than others?

Our residential air conditioning specialists understand that reliable cooling is essential for your family’s comfort during hot summer months. We work with all major AC brands and can diagnose any problem, or help you choose the perfect replacement that efficiently cools your entire home.

Real Talk from Real People

Whether it's grateful families recommending us to friends or our employee-owners who've been with us for decades, the people 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."

  • "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."

  • "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."

  • "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."

"When your family needs cool comfort,
trust the cooling experts who deliver."
24/7 Emergency Service

Got Questions? We've Got Answers.

From unexpected cooling emergencies to planned system replacements, we’re here to help you understand your home’s air conditioning options. Here are some of the most common questions we hear 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.

Call Now