HVAC Services in Southeast Wisconsin
ABOUT RESIDENTIAL MECHANICAL MAINTENANCE
Trusted HVAC experts delivering efficient heating and cooling solutions to keep your space comfortable year-round.
YOUR TRUSTED HVAC SPECIALISTS
Residential Mechanical Maintenance LLC provides professional HVAC installation, repair, and maintenance services for homeowners throughout Greenfield, Franklin, Muskego, Hales Corners, New Berlin, Oak Creek, and surrounding Milwaukee County communities.
Whether your furnace stops working in the middle of winter, your air conditioner can’t keep up during the summer, or you’re looking to upgrade to a more efficient system — our licensed and insured technicians are here to help.
We install, service, repair, and maintain most major makes and models of residential heating and cooling equipment.
"We focus on doing the job right the first time—no shortcuts, no upsells you don’t need."
Matt Remmel & Garrett Mitchell
THE PROS BEHIND RMM
Trusted HVAC experts delivering efficient heating and cooling solutions to keep your space comfortable year-round.
Garrett Mitchell
Hi, I am Garrett, co-owner with Matt. Having family that was involved in skilled trades and machine repair, I got experienced in general mechanical and electrical repair before getting my education through Waukesha County Technical College in Refrigeration Technology. After working in different HVAC related industries, I wanted to pursue my own path and passion for renewable and cleaner technologies. We hope our knowledge and passion is something we can extend to our clients.
Matt Remmel
Hi, I’m Matthew Remmel, owner of Residential Mechanical Maintenance LLC. I got started in the trades with a strong interest in mechanical systems, troubleshooting, and hands-on work. I graduated from MATC with a diploma in Electricity, which gave me a solid foundation in electrical systems, controls, and residential mechanical equipment.
"We provide honest, reliable HVAC service with a focus on quality workmanship and straightforward communication. Whether it’s installing high-efficiency systems, diagnosing difficult issues, or helping homeowners find practical solutions that fit their budget, we take pride in doing the job the right way.
As a locally owned Wisconsin business, we believe in dependable service, attention to detail, and treating customers like neighbors — because that’s exactly what they are."
– Matt Remmel & Garrett Mitchell
WHAT OUR CUSTOMERS ARE SAYING
Real feedback from homeowners and businesses who trust us for their heating and cooling needs. See why our service stands out in comfort, quality, and reliability.
I would give these guys 10 stars if I could! They are fantastic for HVAC and furnace repair and furnace replacement! Let me give you the backstory on what happened..."
— Ryan Hill
Reliable, respectful, friendly, polite and fair! A business of integrity! Matt and Garrett were out early to get our new A/C installed..."
— Laurie Telford
The team worked with us to replace aging furnaces and AC units to heat pumps. They were friendly, professional, and did excellent work..."
— Andy Hall
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Frequently Asked Questions
Mon - Fri 8AM - 4PM (CST)
Residential Mechanical Maintenance LLC provides professional HVAC installation, repair, and maintenance services for homeowners throughout Greenfield, Franklin, Muskego, Hales Corners, New Berlin, Oak Creek, and surrounding Milwaukee County communities.
We except all major forms of payment. Cash, Checks, and Credit Cards.
We offer a free consultation on new installations.
If it’s time to replace your system, we’ll walk you through it the right way.
• Proper sizing (not guesswork) we perform load calculations on the house
• Clean, code-compliant installation
• Honest equipment recommendations
• Clear pricing before work begins
We don’t cut corners—your system will be installed the way it should be.
Strange noises, no heat, no AC, or inconsistent performance? We diagnose:
• Intermittent issues other companies miss
• Electrical and control board problems
• Airflow and duct issues
• System inefficiencies and performance loss
You’ll get a straight answer on what’s wrong and what it takes to fix it.
• Local, owner-operated service
• Straightforward, honest recommendations
• Clean, professional installs
• Experience with real-world problem solving (not just textbook fixes)
ARE YOU READY FOR A PROFESSIONAL CONSULTATION?
If you're not sure exactly what you need, let us provide you with a free consultation and estimate.
GET A FREE ESTIMATE TODAY!
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