
Enjoy a Breath of Fresh Air!
Learn About Our Indoor Air Quality Products.

Enjoy a Breath of Fresh Air!
Learn About Our Indoor Air Quality Products.
About MD Air Conditioning and Heating
MD Air Conditioning and Heating LLC is a locally owned and operated HVAC contractor serving the Northshore and metro New Orleans since 1984. From our shop in Lacombe, we provide residential and commercial heating, cooling, and indoor air quality service to families and businesses throughout this region. We are a family-owned and family-operated company.
Owners Dustin Mehojevich and Michael Mehojevich live and work in the community we serve. That local ownership is the foundation of the company: accountable service, clear communication, and work we expect to stand behind for years. MD Air holds Louisiana Mechanical HVAC license #79379 for residential and commercial work. Our technicians are NATE certified. The company is licensed, bonded, and insured.

We Love Hearing From Our Customers!
If you've had us work on your HVAC system, we would love to hear from you, too.
I scheduled my annual furnace tune-up and the whole process was seamless. The tech was punctual, thorough, and left the work area cleaner than he found it. He noticed a small issue with the igniter that could have caused problems later and took care of it on the spot. It's nice to head into winter knowing everything is in good shape.
Jennifer O.|10/15/25
Proudly Serving
Abita Springs, Bay St. Louis, Covington, Lacombe, Mandeville, Metairie, New Orleans, Picayune, Slidell, Waveland And the Surrounding Areas

We Service All Brands
































Read the MD Air Conditioning and Heating News

DEMO: Why Buying a Heat Pump Instead of a Furnace Makes Sense
Want to heat and cool your Mandeville, LA, home, reduce your carbon footprint, and simplify your HVAC setup—all at the same time? Consider installing a heat pump today. Homeowners across the...

DEMO: 10 Things to Consider When Buying a New Furnace
Winter in Mandeville, LA, is shaping up to be especially harsh this year. Can you imagine not having your furnace to help you make it through? You go to turn it...



