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D & M Heating and Air Conditioning

About Us

D & M Heating and Air Conditioning is a family-owned-and-operated contractor dedicated to top-notch heating and cooling services in DeMotte, IN, and nearby areas. Our highly skilled technicians specialize in heating repair, air conditioning repair, furnace repair, and duct repair, ensuring your comfort year-round. We pride ourselves on our commitment to excellence and customer satisfaction. Whether it’s routine maintenance or urgent repair needs, trust us to provide reliable and efficient solutions for your home. Experience unmatched comfort and service with D & M Heating and Air Conditioning. Contact us today!

Areas Served

DeMotte, IN | Lake County, IN | Porter County, IN | White County, IN | Roselawn, IN | Lowell, IN | Rensselaer, IN | Hebron, IN | Wheatfield, IN | Lake Village, IN | Morocco, IN | Newton County, IN | Jasper County, IN

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What We Offer

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Testimonials

On 9/23/2026 Rhonda Flahive had this to say:
I’m very pleased with the results Testimonial written by Rhonda Flahive on this site.

On 9/4/2026 Lisa Kenney had this to say:
Dan at D&M Heating and Air Conditioning was great! He was prompt, on time, knowledgeable, thorough, and professional! He was able to fix our A/C unit on the spot and was very reasonably priced. I’d highly recommend D&M Heating and Air Conditioning! Thanks Dan!

On 9/1/2026 Dave Graham had this to say:
I have an A/C that dates back to 1300BC. My fan blade decided to break right when this heat wave comes outa nowhere. I can't find a new fan. I call D&M to see if they can be of assistance. Dan...the owner..comes by the next day and slaps on another blade he had laying around and recharged my unit.. now it's humming like a snow pigeon. I am so very grateful to live in a town with businesses like this. Thank you D&M heating and air-conditioning. You have a life long customer here.

On 8/2/2026 Tammy DeVries had this to say:
Above and beyond customer service and superb knowledge base! Dan drove out to our lake house on Koontz Lake to give us a free consultation and explained all things air conditioning so we could make the best AC decision. We then hired him to install a new AC unit- even gave him our house key to be there when we were gone. He and his crew did a fantastic job! Weeks later, we had an AC issue at our DeMotte home, so we called D&M and Dan and his crew came over later that day! He fixed the problem, gave us some pointers, and did NOT charge us for the visit! Thank you Dan and crew for being diligent in your work, knowledgeable about your products, and prompt in your service.

On 8/2/2026 Tammy DeVries had this to say:
Above and beyond customer service and superb knowledge base! Dan drove out to our lake house on Koontz Lake to give us a free consultation and explained all things air conditioning so we could make the best AC decision. We then hired him to install a new AC unit- even gave him our house key to be there when we were gone. He and his crew did a fantastic job! Weeks later, we had an AC issue at our DeMotte home, so we called D&M and Dan and his crew came over later that day! He fixed the problem, gave us some pointers, and did NOT charge us for the visit! Thank you Dan and crew for being diligent in your work, knowledgeable about your products, and prompt in your service. Testimonial written by Tammy DeVries on this site.

Contact Us

D & M Heating and Air Conditioning
DeMotte, IN 46310
Phone: (219) 613-3688
Email: kaileygarcia.dm@gmail.com

Where To Find Us

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Payment Types Accepted

Personal Checks, MasterCard, Visa

Our Hours

24 Hour Emergency Service

Holiday Hours May Vary. Please Call For Details.

Monday: 9:00 AM - 5:00 PM
Tuesday: 9:00 AM - 5:00 PM
Wednesday: 9:00 AM - 5:00 PM
Thursday: 9:00 AM - 5:00 PM
Friday: 9:00 AM - 5:00 PM
Saturday: By Appointment Only
Sunday: By Appointment Only

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