Furnace Maintenance in Bay City
Protecting Your Furnace Investment Since 1984
A furnace that runs through Michigan winters without a hiccup doesn’t happen by accident. Our preventative maintenance programs are built to protect your equipment investment, reduce the risk of unexpected repairs, and support the working life of your system. Paired with our extended warranty options, which add equipment and labor protection beyond standard manufacturer coverage, maintenance becomes a strategy rather than a chore.
Customers who want more than a one-time tune-up can enroll in our ongoing maintenance programs for scheduled, consistent care year after year. If something does go wrong, extended warranty coverage means you’re not facing the full cost alone.
Ready to schedule a furnace maintenance visit? Call (989) 474-2870 and our team at Custom Engineering can get you set up.
Serving Bay City Since 1984
Custom Engineering has been a fixture in the Bay City area since 1984. Our HVAC technicians are licensed and insured, and we’re an authorized Trane dealer, meaning we work with equipment held to rigorous performance standards. We serve both residential and commercial customers throughout Mid-Michigan, so whether you own a home or manage a commercial property, our team handles furnace maintenance for both.
Custom Comfort, Professional Care
What Makes Us Different?
Honest Recommendations, No Pressure
We don’t arrive at a maintenance visit looking for upsells. Our approach is to listen first, then explain clearly what we found and what your options are. If your furnace is performing well, we’ll tell you. If something needs attention, we can walk you through what it is, why it matters, and what it costs before any work begins.
That straightforward approach is how we’ve built long-term relationships with customers across Bay City and Mid-Michigan. Decisions about your heating system should fit your comfort goals and your budget, and we’re here to give you the information to make them confidently.
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Convenient Financing Options
We make HVAC services manageable with convenient financing options. Subject to credit approval.
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Preventative Maintenance PlansKeep your system in perfect shape all year round with our programs.
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Locally Owned & OperatedAs a proud Michigan company, we deliver honest, dependable HVAC services backed by local expertise and care.
When to Schedule Furnace Maintenance in Bay City
Annual maintenance is the standard recommendation, and timing matters in Michigan. Bay City winters average January highs near 27°F and lows near 17°F, with snow season running roughly November through April. That’s a long stretch of hard furnace use. Scheduling a tune-up in fall, before temperatures drop, means your system is inspected before the first cold snap rather than scrambling after one.
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.
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"By far the most professional and reliable company."Every employee I have had the pleasure of dealing with has been top-notch. Today's visit by Tyler for annual maintenance was great. He was punctual, friendly, and professional.- Michelle G.
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"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.
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"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.
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"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.
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"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.
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"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.
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"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.
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"This business is the best!"We bought our kitchen hood system from them, which they also installed (no small task). They are dependable, efficient, and do great work. Prices are what I would expect for the job. Don't hesitate to hire them.- Marinell S.
Furnace Maintenance Service Area
We provide furnace maintenance throughout Bay City and the surrounding Mid-Michigan communities, including Midland, Saginaw, Kawkawlin, Essexville, Freeland, Gladwin, Linwood, Pinconning, and Roscommon County.
Schedule Your Furnace Maintenance Visit
Call (989) 474-2870 to schedule a maintenance visit with Custom Engineering. If a tune-up reveals that your furnace is nearing the end of its service life, we provide free, no-obligation estimates on new system installations so you can plan your next step without pressure.
Which Home Repairs Require a Specialist?
Some furnace upkeep is straightforward enough to handle on your own. Other tasks carry real safety risk and belong to a licensed technician.
Homeowner tasks:
- Replacing air filters on a regular schedule
- Clearing vents and registers of furniture or obstructions
- Keeping the area around the furnace free of stored items or debris
Tasks that require a professional:
- Inspecting or testing the heat exchanger for cracks
- Checking or adjusting gas connections
- Servicing electrical components or wiring
- Testing and cleaning ignition system components
When in doubt, a licensed HVAC technician can handle it safely and document the work for warranty purposes.