
Expert Thermostat Repair in Indian River
Your Trusted Local HVAC Experts Since 1957
A malfunctioning thermostat can disrupt your entire home, leaving you too hot, too cold, and frustrated. At M&M Plumbing, Heating, and Cooling, we understand that you need a quick and effective solution. We specialize in diagnosing and performing thermostat repair for all types of heating and cooling systems, ensuring your comfort is restored without delay.
As a third-generation, family-owned business serving the Indian River community since 1957, we bring more than just technical skill to every job. We bring a commitment to honest service and quality workmanship that our neighbors have trusted for decades. Let our family help yours get back to comfort.
Tired of thermostat troubles? Speak with one of our experts at (231) 377-3899 or fill out our online form to get help.
Why Choose Us For Thermostat Repairs in Indian River?
With more than six decades serving Indian River, our reputation centers on dependable, personal service—not high-pressure sales. We believe honest communication is essential, so you’ll always get straightforward pricing with no hidden charges. Our skilled technicians handle your thermostat repair efficiently, keep workspaces tidy, and accommodate your schedule—including evening, weekend, and emergency appointments when the Michigan weather takes a sudden turn.
- Experience Matters: Serving local homeowners for 65+ years.
- Personal Touch: Family-owned since 1957, now led by second-generation owner Scott Monthei.
- Clear Communication: Upfront estimates—never surprises about pricing.
- Convenient Service: Flexible scheduling, including emergency repairs for sudden temperature swings.
- Flexible Financing: Multiple payment and financing options to fit your budget.
- Local Roots: Proud to support causes like the Kim Monthei Cancer Fund, helping neighbors in need.
What truly distinguishes us is our unwavering commitment to providing you comfort quickly and reliably—all while respecting your time and property. A malfunctioning thermostat can disrupt your routine at any time of year, which is why we make emergency thermostat repair available to local residents when it matters most. We offer budget-friendly payment options for urgent repairs, ensuring no one has to delay restoring comfort because of unexpected expenses. Our team goes beyond the service call, always ensuring spaces are left spotless and following up to confirm your satisfaction.
Comprehensive Thermostat Repair Services in Indian River
At M&M Plumbing, Heating, and Cooling, we provide complete thermostat repair for all common brands, from manual dials to modern smart units. We know Michigan’s seasons demand a reliable system, and our team is ready to diagnose and resolve any issue to keep your home comfortable and efficient.
Accurate Troubleshooting and Diagnostics
Is your thermostat unresponsive, showing incorrect temperatures, or causing your system to cycle erratically? Our first step is always accurate troubleshooting. We meticulously inspect your system to pinpoint the exact source of the problem, ensuring we provide an effective and lasting repair, not just a temporary fix.
Component Repair and Replacement
Many thermostat issues stem from worn-out components. We are fully equipped to replace faulty wiring, aging mechanical parts, or failing power supplies. We use high-quality replacement parts to ensure your thermostat operates reliably and safely for years to come, restoring your system’s peak performance.
Smart Thermostat Upgrades and Installation
If your current thermostat is outdated or beyond repair, consider an upgrade. We can install a modern programmable or smart thermostat to enhance your comfort and reduce energy costs. These units offer better control, which is ideal for Indian River’s climate and for managing seasonal homes remotely.
Safety and Code Compliance
Your family’s safety is our top priority. All our thermostat repairs and installations strictly adhere to state electrical and safety codes. You can have peace of mind knowing that every connection is secure and all work is performed to the highest professional standards by our experienced technicians.
Ready to fix your thermostat? Call us today at (231) 377-3899 or send us a message online.
Diagnosing and Solving Common Thermostat Issues
A thermostat problem can show up in many ways, from a blank screen to a room that never feels the right temperature. We understand how frustrating these issues can be. Our technicians have the experience to quickly figure out what’s wrong with your heating and cooling controls.
Over the decades, we have solved thousands of thermostat issues for homeowners in the Indian River area. Some of the most frequent problems we encounter and fix include:
- The Blank Screen: Often a simple power issue, which could be caused by tripped breakers, drained batteries, or a disconnected wire inside the wall.
- Incorrect Temperature Readings: This can cause your system to run too long or not long enough, often pointing to a needed calibration or a failing sensor.
- Constant Cycling or No Response: This happens when the thermostat fails to properly communicate with your furnace or AC, leading to inefficiency and discomfort.
Our diagnostic process is thorough. We don’t just look at the thermostat on the wall; we examine the wiring and its connection to your HVAC system. This comprehensive approach ensures we identify the root cause, whether it's a simple setting error or a more complex electrical fault.
Our goal is to provide a solution that restores not just your comfort but also your confidence in your HVAC system. We ensure your thermostat communicates correctly with your equipment, providing reliable and efficient temperature control for your home, no matter the season outside.
Our Thermostat Service Process: What to Expect
We believe the repair process should be as reliable as the repair itself. From the moment you contact us, our priority is to provide a clear and hassle-free experience. We want you to feel confident and informed every step of the way, with no surprises.
Our approach is designed to be straightforward and respectful of your time and home. When you schedule a thermostat repair with our Indian River team, here is what you can always expect:
🔶 A Clear Assessment: Our technician will arrive on time, explain the diagnostic process, and clearly communicate the root cause of the issue.
🔶 An Upfront Estimate: Before any work begins, we provide a detailed quote so you know the exact cost of the repair.
🔶 A Thorough Repair: We use quality parts and proven methods to restore full function to your thermostat and heating or cooling system.
🔶 Post-Repair Verification: After the work is done, we test everything to confirm your comfort and provide maintenance tips for our local climate.
Throughout the process, you’ll work directly with our local team—no call centers or impersonal service. If our inspection reveals other HVAC issues, we are transparent about what is urgent and what can wait, always keeping your budget and best interests in mind.
Our commitment to you doesn’t end when we leave your home. We follow up to ensure your system continues operating as intended and document every visit for your records. Whether you have questions later or need seasonal check-ups, our team is always here for you.

Frequently Asked Questions
How do I know if my thermostat needs repair or replacement?
If your home’s temperature doesn’t match your setting, the system won’t turn on or off as expected, or you see frequent error messages, your thermostat may need professional repair. A trained technician can quickly determine whether repair or replacement is the best option.
Are you able to service smart thermostats in Indian River?
Yes, we work with most major smart and Wi-Fi thermostat brands. We can repair, calibrate, or help upgrade your thermostat for improved comfort and efficiency suited to Indian River’s climate.

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"Competent & Professional"
Nick P. Serviced our furnace to prepare it for winter. We are very confident using M&M. They are very competent and professional. Nick reflects the company’s good reputation in northern Michigan.- Valerie H. -
"Super Helpful"
Super helpful! They were able to make an apt for me right away. Collin was awesome, walked me through the process and let me know what I needed to know and had my air conditioner up and running right away.- Stephanie H. -
"Great Company"
M&M Plumbing is a great company, always prompt, courteous, and professional. They are the company we've trusted with any heating, cooling or plumbing needs since moving to Northern Michigan.- Carol F. -
"Highly Recommend"
This is our second experience with M&M and we could not be more impressed. I would highly recommend them.- Warren S. -
"Excellent Service"
Their communication with me by phone was excellent. They had our water going in no time and my kids were able to enjoy their few days away with no interruptions to their plans.- Kathy C. -
"Nice & Helpful"
They got my pump replaced the same day I called so I was very thankful to have it done in a timely manner. Very nice people to work with and helpful with financial matters.- Rita D. -
"Very Satisfied"
Nick arrived within the time block that was texted. He was very personable and professional. He explained what was required after inspecting my furnace and completed the work thoroughly and in a timely fashion.- Shery P. -
"Professional and Friendly"
The crew did an excellent job finding and fixing the issue in the least invasive way possible. It was a horrible and lengthy job for them... and they remained professional and friendly throughout.- Jenna M.
Contact Us for Thermostat Repair & Comfort Solutions
If your thermostat is causing discomfort or disrupting your routine, let our family help restore your peace of mind. Contact M&M Plumbing, Heating, and Cooling today at (231) 377-3899 to schedule trustworthy thermostat repair in Indian River. You will receive honest advice, transparent pricing, and friendly service rooted in over 65 years of local experience. We are here to help—on your schedule, with respect for your home and open communication every step of the way.
An unexpected thermostat problem can quickly turn into major discomfort—especially during the shifts of a Northern Michigan season. Our responsive team makes it easy to get help on your terms, whether you’re living in Indian River year-round or returning for the summer. We arrive prepared to find solutions fast and always clean up when the work is complete. When you call M&M Plumbing, Heating, and Cooling, you are reaching a trusted neighbor known for service, professionalism, and a genuine commitment to local comfort. Give us a call or request service today—we’ll take care of your thermostat concerns so you can get back to enjoying your home.

M&M Plumbing, Heating, & Cooling is glad to provide financing for most of
the services we offer. We know that sometimes the price tag of HVAC and plumbing
systems can be little heavier than you originally thought. If you need a little extra
help paying for our services, we are flexible and here to help with financing!
*You will need to input our contractor ID 202393 for the loan application.