
Heating Installation & Replacement in Bay City, MI
Upgrade Your Comfort with Reliable Heating Solutions from Custom Engineering
Enhance your home’s comfort with reliable heating installation and replacement services from Custom Engineering. Whether you're replacing an old system or building a new property in Bay City, we can help you select the right solution. Locally owned and operated, we understand the importance of staying warm during Michigan’s cold winters.
With decades of experience, we offer personalized service and expert guidance throughout the entire process. From the initial consultation to final installation, we’ll help you explore your options. Let us provide the heating solution you can rely on, right here in Bay City.
We proudly serve Bay City, Saginaw, Midland, and the surrounding areas. Call (989) 474-2870 to book an appointment and get a free estimate.

Custom Comfort, Professional Care
What Makes Us Different?
At Custom Engineering, we will always put you first. That's why so many people in Linwood trust us time and again.
-
Affordable Financing OptionsWe make HVAC services affordable with financing options offering 0% interest for 72 months.
-
Available Nights & WeekendsNo matter when you need us, we're ready to help. Someone is always available to answer your call.
-
Preventative Maintenance PlansKeep your system in perfect shape all year round with our programs.
-
Locally Owned & OperatedAs a proud Michigan company, we deliver honest, dependable HVAC services backed by local expertise and care.
Choosing the Right Heating System for Your Home
We provide a variety of heating system options to match your home’s unique needs. Our team will guide you through the benefits and help you choose the best fit for your comfort and budget.
Here’s a quick rundown of the heating systems we install:
- Gas furnaces. Gas furnaces are a reliable, cost-effective choice for many locals. They provide powerful heat and are especially efficient during our cold winters. If you’re looking for a proven option that can quickly warm your property, a gas furnace could be the right fit. We’ll help you select the right size and model to maximize efficiency and comfort.
- Electric heat pumps. A heat pump is a versatile solution that can both heat and cool your property. Ideal for moderate climates, they’re energy-efficient and can save you money on your utility bills over time. If you're looking for an all-in-one system to keep your space comfortable year-round, an electric heat pump might be the way to go. We’ll guide you through the pros and cons to help you make an informed decision.
- Ductless mini-split systems. These systems are perfect for properties without existing ductwork or for heating and cooling specific areas. Ductless mini-splits are highly efficient and offer better control over the temperature in individual spaces.
During your consultation, we’ll discuss your goals and make recommendations that fit your home, lifestyle, and budget. We’re here to help you find the perfect heating solution that keeps you cozy throughout the Michigan winters.


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.
-
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.
-
I needed help, and Custom Engineering got to me fast and saved the day. Nick, the technician, was great. He was personable and intelligent and he got my repair done super fast. Thanks, Custom Engineering!- James T.
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
Heating System Maintenance Tips
Proper maintenance is key to extending your system’s lifespan and improving its efficiency.
Here are some easy maintenance tips to keep your heating system running smoothly:
- Change filters every 1-3 months. Dirty ones restrict airflow and can cause your system to work harder, leading to higher energy bills and potential breakdowns. We can guide you on the best filters for your system and help you stay on top of this simple task.
- Schedule annual tune-ups. A yearly tune-up gives your heating system the attention it needs to stay in top condition. Our team can inspect, clean, and service your system to catch any small issues before they become bigger problems.
- Keep vents and returns clear. Blocked vents and returns can restrict airflow and make your system work harder to heat your home. Regularly check that your vents and returns are free from obstructions to improve airflow and system efficiency.
We also provide ongoing maintenance services and can remind you when it's time for a check-up, so you never have to worry about forgetting an important task.
Ready for a Warmer Home?
If you’re in Bay City, Saginaw, Midland, or any of the surrounding areas, we’d love to help with your heating installation or replacement. Our process is simple, our pricing is transparent, and our team is here when you need us.
We offer financing through Wells Fargo and Michigan Saves, with 0% options available for qualifying homeowners through Wells Fargo, to make your heating system replacement even easier.
Contact us today at (989) 474-2870 or online for a free estimate. Let us help make heating your home a little easier!