AC Repairs

AC Repair in Bay City, MI

24/7 Emergency AC Repair Throughout the Great Lakes Bay Region

At Custom Engineering, we've been helping homeowners stay cool and comfortable since 1984 with our air conditioning repair services in Bay City, MI, and surrounding areas. As a locally owned HVAC company, we understand Michigan's unpredictable weather and take a straightforward, personal approach to every repair.

We're always just a phone call away—whether it's a quick question or an urgent repair. If your AC is blowing warm air, running constantly, or making strange noises, it's time to have it looked at. Whether you're in Bay City, Midland, Saginaw, or nearby, we're right here, ready to assist.

Living and working in the Great Lakes Bay Region ourselves, we know how sticky Michigan summers can be. That's why we're committed to keeping your home comfortable without the runaround. Whether you're in Essexville, Auburn, or Freeland, you'll get honest, reliable service from a team that treats you like a neighbor, not a number. 

Need fast air conditioning repair in Bay City or nearby? Call us today at (989) 474-2870 to help restore comfort to your home.

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Custom Comfort, Professional Care

What Makes Us Different?

At Custom Engineering, we will always put you first. That's why so many people in Bay City trust us time and again. We aim to exceed expectations by genuinely listening to your needs and tailoring our services accordingly. This customer-first philosophy drives us to provide not only quality repairs but also preventative advice to ensure your system runs smoothly year-round.

Locally, word of mouth is powerful, and we are proud to say much of our business comes from satisfied customers who recommend us to their friends and family. We believe that by fostering these strong, local connections, we not only contribute positively to Bay City but also build a trusted network of happy homeowners who rely on us for their cooling needs.

  • Affordable Financing Options
    We make HVAC services affordable with financing options offering 0% interest for 72 months.
  • Available Nights & Weekends
    No matter when you need us, we're ready to help. Someone is always available to answer your call.
  • Preventative Maintenance Plans
    Keep your system in perfect shape all year round with our programs.
  • Locally Owned & Operated
    As a proud Michigan company, we deliver honest, dependable HVAC services backed by local expertise and care.

Common AC Repairs We Handle in Bay City

Not every AC issue is obvious. Sometimes it's a sudden lack of cool air, other times it's strange sounds, a thermostat that's not responding, or rooms that just don't feel right. Whether you live in Bay City, Saginaw, Midland, or a nearby town, we're here to help you figure out what's happening.

We work on all types of home cooling systems, from traditional ducted AC units to ductless mini-splits and heat pumps. If you've got a high-efficiency Trane or Mitsubishi Electric system, we know our way around those too.

Common AC problems we handle:

  • Low refrigerant or leaking lines
  • Frozen coils
  • Thermostat glitches
  • Blocked drain lines or dirty filters
  • Faulty capacitors or blower motors
  • Uneven temperatures throughout the house

If your home doesn't feel like it's cooling the way it should, we're ready to take a look, explain what we find, and walk you through what comes next. Our team provides detailed diagnostics using state-of-the-art equipment to ensure we identify the root cause of the problem. This comprehensive approach not only resolves your current issue but helps prevent future problems, keeping your system running at peak performance.

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Trusted by homeowners and Businesses Since 1984

At Custom Engineering, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

    "They really came through!"
    Quick, efficient, and friendly service from both office staff and techs. Fair pricing. Grateful for their help on a freezing day when our furnace failed. Feared the worst. Highly recommend this company!
    - Tammie S.
    "My experience with the company was great!"
    Chaz went above and beyond! He fixed my main house furnace and also advised me on my ceiling-mounted furnace in my back building. Thank you for your quick response. I will use you again!
    - Ann K.
    "Custom Engineering took care of us right away!"
    Our initial call was after hours and not an emergency. We received a call first thing the next morning, and they came out within a few hours. Both gentlemen were very professional and knowledgeable, and were able to repair our furnace right then and there.
    - Reid K.
    "They did a great job!"
    We went through custom engineering for replacing our furnace and air conditioner. They went above and beyond to do what is best for our home. The whole team was respectful and informative. They answered any questions we had!
    - Allison E.
    "Nick was fantastic!"
    He got our furnace up and running again very quickly (on a Saturday!). Very personable and professional! We will definitely be using Custom Engineering Heating & Cooling again - thank you!
    - Krista W.
    "They have been an excellent company to work with."
    Always courteous & competent. They installed a new furnace, AC, garage gas heater, and ran a gas line into our laundry room. They stayed on the job until all was completed and we were extremely satisfied.
    - Terrance V.
    "They did an excellent job - all in one day!"
    I always try to keep my business local, so I called Custom Engineering. They always answered my calls promptly, and the service was friendly with experienced technicians. They were prompt, courteous, and really put my fears to rest. Great job!
    - Debbie M.
    "I don't know what I do without this company!"
    Chaz did an amazing job - straightforward and very helpful. Jason and Trey set up the furnace a week ago, and it runs amazingly! It's nice to stay warm again. They just repaired and replaced my bathroom exhaust fan, too. Thank you again!
    - Cesily W.

Frequently Asked Questions

How Often Should I Have My AC Unit Serviced?

It is recommended to service your AC unit at least once a year. Ideally, schedule maintenance before the heat of summer sets in. Regular maintenance not only extends the life of your unit but also ensures it operates at peak efficiency, saving you money on energy bills. At Custom Engineering, our comprehensive inspection checks important components such as coils, filters, and refrigerant levels. Routine servicing can prevent minor issues from escalating into significant, costly problems, making it a wise investment for any homeowner in Bay City, MI.

Is It Worth Repairing My Old AC Unit?

Whether to repair or replace your old AC unit depends on several factors, including the age of the unit, the cost of the repair, and its efficiency. Generally, if a repair costs more than half the price of a new unit or if the unit is over 10 years old and not keeping up with cooling needs, replacement might be the better option. Our team at Custom Engineering will provide a thorough assessment and help you weigh the benefits of each option to decide what's best for your situation.

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Let's Get Started

A member of our team will be in touch shortly to confirm your contact details or address questions you may have.

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