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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.

Brands We Trust

RAPID CITY, SD

BRANCH OFFICE

3536 Eglin St, Rapid City, SD 57703
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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.

  • "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."

Proud of Our People, Proven by Results

We are excited to share our lastest achievements and news!

Awards and Certifications

PHCC CONNECT Competition 2025

We’re proud of our team! The PHCC Educational Foundation CONNECT Convention was held in Grand Rapids, MI, in October. We’re thrilled to celebrate our amazing team for their incredible achievements: Cody Green – National PHCC Plumbing Apprentice Runner-Up, Cody Schroeder – 2025 Plumbing Instructor of the Year, and Jantzen Fisher – HVAC Apprentice of the Year. Way to represent Midwestern Mechanical and show what Performance with Pride is all about!

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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