• EPA Certified • Licensed & Insured • Serving Kalamazoo & Southwest Michigan
ABOUT DOUGLAS HEATING SUPPLY
About Douglas Heating Supply — Trusted HVAC Experts in Kalamazoo, MI
For more than two decades, Douglas Heating Supply has been the trusted HVAC company for homeowners and businesses across Kalamazoo, MI and Southwest Michigan. We are a family-owned HVAC store, certified dealer, and licensed contractor. We sell, service, and install heating and cooling equipment — all under one roof.
SINCE 2002
Serving Kalamazoo
Licensed & Insured
EPA Certified
Commercial
Residential &
All Services
Free Estimates
EPA certified
Licensed & fully insured
Fast Response
Same-day service
Free estimates
All new installations
MI Michigan License
#7118492
MI Entity
#803143553
OUR MISSION
What We Stand For
"Live Comfortable. Always."
Everything we do at Douglas Heating Supply is built around that promise. From your first call to the final follow-up, our goal is to ensure every home and business we serve stays comfortable, efficient, and worry-free year-round. Honest pricing, warranty-backed work, and a team that genuinely cares.
WHO WE ARE
About Us
Douglas Heating Supply is a family-owned HVAC company rooted in Kalamazoo, MI. Since opening in 2002, we have grown from a local heating supplier into a full-service HVAC store and certified dealer. We serve both residential and commercial customers across Kalamazoo, Portage, Richland, Texas Corners, and all of Southwest Michigan.
We sell, service, and install all major HVAC brands including Bryant, American Standard, Goodman, and Rheem. Our EPA-certified technicians are background-checked, Michigan-licensed, and trained to work on every type of heating and cooling system.
WHAT WE DO
What We Do — Sell, Service & Install
Douglas Heating Supply is more than a service company. We are a full HVAC store where you can walk in, talk to our team, and purchase equipment directly. We sell, service, and install everything your home or business needs to stay comfortable year-round.
WE SELL
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Furnaces and heating systems
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Air conditioners and cooling systems
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Heat pumps and package systems
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Water heaters
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Humidifiers and air purifiers
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Thermostats and controls
WE SERVICE & INSTALL
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Furnace repair and diagnostics
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AC repair and maintenance
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Rooftop unit service
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Water heater replacement
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Indoor air quality solutions
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Thermostat calibration and install
CARE CLUB
The Care Club — Our Preventative Maintenance Program
The Douglas Heating Supply Care Club is our prepaid annual maintenance program starting at $179/year. Members receive two professional tune-ups annually — a spring AC check and a fall furnace inspection — along with priority scheduling and member discounts.
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Regular maintenance keeps your HVAC system running efficiently, extends equipment life, and helps you avoid costly emergency repairs. Available for both residential and commercial customers.
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Meet the Team
The reputation of Douglas Heating Supply is built on the people behind it — a dedicated local team committed to your comfort and satisfaction.
TRUSTED BRANDS
Brands We Install & Service
Our Certifications and Licenses
MI Entity
#803143553
Mechanical License
#7118492
Certification
EPA Certified
Mechanical License
#7118492
State
Michigan (MI)
How long has Douglas Heating Supply been in business?
GOT QUESTIONS?
Frequently Asked Questions
Douglas Heating Supply has been serving Kalamazoo, MI and Southwest Michigan since 2002. We are a family-owned HVAC company with over two decades of experience in residential and commercial heating and cooling.
Do you sell HVAC equipment directly?
Yes. We are a full HVAC store and certified dealer in Kalamazoo, MI. We sell furnaces, air conditioners, heat pumps, water heaters, thermostats, humidifiers, and more. Walk in at 8160 Douglas Ave or call (269) 344-6666.
Do you service both residential and commercial customers?
Yes. We provide HVAC services for both residential homes and commercial facilities across Kalamazoo and surrounding areas, including rooftop unit service, preventative maintenance plans, and 24/7 emergency repair.
What is Care Club?
The Care Club is our prepaid annual maintenance program at $179/year. It includes a spring AC tune-up and a fall furnace inspection, priority scheduling, and member discounts. Available for residential and commercial customers across Kalamazoo, MI.
What areas do you serve?
We serve Kalamazoo, Portage, Richland, Texas Corners, Plainwell, Battle Creek, Allegan, Gobles, Martin, Wayland, Schoolcraft, and all of Southwest Michigan. Same free estimates, same warranty-backed work everywhere.