Our Services
Air Conditioning
Make sure your family doesn’t melt in the summer heat. Install a new AC or schedule an Air Conditioner tune up in East Lansing right away!
Cool Your Space
Heating
If you're looking for a licensed heating contractor to handle your furnace or boiler repair in the DeWitt area, you've found one!
Warm Up Now
Home Performance
A home energy audit in St. Johns is the building science approach toward calculating airflow and measuring it in your home.
Get Energy Audit
For Furnace Repair in DeWitt,
You Can Count on Us.
Comfort First is a second-generation family-owned business. We are a licensed and insured HVAC contractor, serving the greater Lansing area. When we complete a project, our home service specialists leave your house cleaner then when they arrived. We feel that serving you is a privilege, and we take pride in how we treat you, your family, your pets, and your home.
Comfort First takes care of their customers. Once you have become a customer of ours, we believe that it is our duty to continue to provide quality service to you for a lifetime. We offer our repeat customers incredible future discounts, sales, coupons, savings, and promotions on maintenance and other future home improvement projects.
Comfort First takes care of their customers. Once you have become a customer of ours, we believe that it is our duty to continue to provide quality service to you for a lifetime. We offer our repeat customers incredible future discounts, sales, coupons, savings, and promotions on maintenance and other future home improvement projects.
- Family Owned and Operated
- Over 25 Years in Business
- 24-Hour Emergency Service
- Highly Trained Technicians
- Licensed and Insured
BEST DEAL GUARANTEE!
Comfort First is the founder of the one and only “BEST DEAL GUARANTEE”!We guarantee our customers a first class experience on our equipment, services, and our deals.
Comfort First Heating & Cooling, Now Serving Delton and Surrounding Areas
We’re proud to expand Comfort First Heating & Cooling into the Delton area, run by branch leader Josh, a Middleville native and Marine Corps veteran who is returning to the area to be closer to family. Backed by more than 25 years of trusted service from our DeWitt office, we remain committed to delivering reliable, year-round comfort through expert heating and cooling solutions.
New Location servicing Delton, MI. By Appointment Only
Cities We Service
Click on a city below to see what your neighbors are saying about their recent experience with Comfort First Heating & Cooling, Inc.
View List of Cities
Frequently
Asked Questions
What Should I Check Prior to Calling?
Before contacting Comfort First for furnace repair in the DeWitt area, go through the basics. Make sure you don’t have a dead thermostat or a tripped breaker. Then, put in a new air filter and make sure you have the system set correctly. If none of these things are to blame, reach out to us for a furnace diagnostics check.
How Much Does AC Service Cost?
The cost of your AC repair or installation depends on many factors that are rarely, if ever, the same. Because we need to do an onsite assessment, we cannot provide quotes over the phone. Call us and we’ll get you scheduled to get a quote in the St. Johns and DeWitt area.
How Long Will My AC Unit Last?
While the lifespan of a new AC unit varies based on make and model, most will last between 10 and 15 years. Some systems not subject to heavy, constant use can last over 20 years if properly maintained. That doesn’t mean, however, that you should wait for it to break. Old units are often inefficient and expensive to repair. Being proactive about AC replacement is a great way to save money on your utility bills.
How Often Should I Check Air Filters?
You'd be amazed how many HVAC problems are caused by someone forgetting to change their air filter. If you use a 1-inch disposable filter, we suggest replacing those monthly. For people with a 4-inch media filter, two changes a year is often enough.
When Should I Have My Unit Serviced?
In the DeWitt area, we recommend getting your HVAC equipment serviced before the start of each season. In other words, AC maintenance should be done at the beginning of spring, while furnace tune-ups are best done in the fall.
Coupons & Promotions
$20.00 Off
Any Heating or AC Repair
This coupon entitles a homeowner to a $20 discount off any heating or cooling repair service performed by Comfort First Heating & Cooling, Inc. at their residence. Discount is limited to a maximum of $20.00. Only one coupon per service address will be accepted. Coupons are not valid for commercial or rental properties. Coupon must be presented at the time of service. Payment for the balance is expected at the time of service.
Good Through:
October 2026
October 2026
Free Quote
Heating or AC Service
This coupon entitles a homeowner to a free quote or estimate on any heating or cooling repair service performed by Comfort First Heating & Cooling, Inc. at their residence. Payment for the balance is expected at the time of service.
Good Through:
October 2026
October 2026
Serving Your HVAC Needs in Dewitt Since 1997
Heating & Cooling (HVAC) Department
Comfort First Heating & Cooling, Inc. specializes in the repair and installation of residential heating, cooling, and hot water equipment. Our service specialists are trained to service all brands of equipment. Our HVAC services include the service, repair, installation, and replacement of; furnaces, air conditioners, heat pumps, boilers, geothermal units, fireplaces, water heaters, thermostats, air filtration systems, air zoning equipment, UV air purification units, and duct cleaning. Our REGENCY FIREPLACE SHOWROOM is available to walk in customers Monday-Friday. Visit this page to see our showroom hours.
HVAC Services
Home Performance Department
Comfort First is Lansing's leader in specialized home energy audits and home performance repairs. After a thorough evaluation, our home service specialists are trained to make the improvements needed to help make your home more comfortable, while showing you how to conserve energy. We are on the cutting edge of geothermal, home solar, and wind turbine technology so we can help create a self sustaining alternative for powering your home. Our equipment meets the highest energy standards, so most of the projects that we complete qualify for tax credits, incentives, and rebates. The best part is, our specialists do all the research for you up front. They will provide all the details you need to get the maximum amount of money back on your energy improvement projects. Our home improvement services include; high efficiency window replacement, insulation upgrading, attic ventilation improvements, home and basement sealing, wet basement repairs, high efficiency home equipment installation, solar and wind generator design and installation, and much more.
Home Performance Service
Warranty & Maintenance Services
You can rest assured. Our warranties are top notch and industry leading! If you have ever had a concern about equipment, parts, and labor warranties, then fret no more. We lead the way in keeping your home protected. Each piece of equipment is different in warranty, but it is important that you know, our warranties go up to LIFETIME REPLACEMENT, up to 10 YEAR PARTS, and up to 10 YEAR LABOR! Our maintenance services ensure that each customer can maximize the efficiency and increase the life of the equipment, as well as, reduce the expenses of those costly repairs due to neglect. Contact a specialist for more information about our warranties and maintenance plans.
Maintenance Service