Residential HVAC Services |

HVAC Problems? We're On It.

From furnace breakdowns on the coldest nights to AC failures during summer heat waves, our residential HVAC team brings expertise, reliability, and genuine care to every home we serve. We're the heating and cooling professionals your neighbors trust—because your family's comfort matters, and we treat every home like it's our own. Explore our services to see how we can help.

A/C INSTALLATION & REPAIR

From broken compressors to poor airflow, we handle repairs, replacements and installs to keep your home cool when it matters most.

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FURNACE INSTALLATION & REPAIR

Cold house in winter? We install and repair furnaces—fast diagnostics, reliable heating and no more shivering through the night.

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Why Midwestern Mechanical

YOUR NEIGHBORS. YOUR TEAM.

For over 40 years, we've been the HVAC company families trust when comfort matters most. Our employee-owned team doesn't just fix heating and cooling systems—we build lasting relationships with homeowners who know we'll always go the extra mile. With locations in Rapid City and Spencer, we're your local HVAC experts.

Got Questions? We've Got Answers.

From furnaces that won’t start to A/C units that aren’t cooling, we’re here to make heating and cooling problems easier to understand. Here are some of the most common questions we get from homeowners.

What should I do if my heating fails in the middle of winter?
Call us immediately by selecting the location nearest to you click here. Our emergency HVAC teams are available 24/7 in Rapid City and Spencer—we’ll dispatch a technician to restore your comfort and safety as quickly as possible.
What areas do you serve for residential HVAC?
We provide residential HVAC services from our Rapid City, SD and Spencer, IA locations—covering western South Dakota and northwest Iowa with reliable expertise.
Can I get a quote online?
You can start the quote process online by clicking “Get a Quote” above, and our local HVAC team will follow up to provide your free estimate and discuss scheduling options.
How often should I have my HVAC system maintained?
We recommend annual tune-ups for both your furnace and air conditioner—it prevents breakdowns and keeps your systems running efficiently all year long.
What brands of HVAC equipment do you work with?
We service all major HVAC brands and install quality systems from trusted manufacturers, so you get reliable equipment backed by solid warranties.
Can you help if my HVAC system is older?
Definitely—whether your system needs repairs to keep it running or it’s time for a replacement, we’ll help you find the most cost-effective solution.
How long have you been in HVAC?
Since 1983—that’s over 40 years of keeping neighbors comfortable across South Dakota and Iowa, one satisfied customer at a time.

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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