The Heating & Air Conditioning Contractors of Maryland

The Heating & Air Conditioning Contractors of Maryland The Heating & Air Conditioning Contractors of Maryland is a trade association for independent heating, ventilation, air conditioning and refrigeration.

The Heating & Air Conditioning Contractor of Maryland (HACC) is a trade association for independent heating, ventilation, air conditioning and refrigeration (HVACR) contractors in the Baltimore metropolitan area. The organization actively promotes and protects the interests and welfare of the industry, its members and the consumers it serves.

05/28/2026

Our president Sean Mallonee speaking before the Harford County Council.

Thanks for having me as a panelist! It’s great to talk workforce development!
05/13/2026

Thanks for having me as a panelist! It’s great to talk workforce development!

Just a reminder we are holding our free Spring social tomorrow. Please register so we have enough food!
05/13/2026

Just a reminder we are holding our free Spring social tomorrow. Please register so we have enough food!

Join us for a Spring Social Event at the HACCMD Training Facility, where we hold apprentice trainings, labs, and other events. In 2020, HACCMD leased a 6,000 square foot facility that we built out to serve the needs of our program. The facility has 3,000 square feet dedicated to teaching HVAC in a l...

05/07/2026
Please see link to graduation photos. You can download the photos directly from the site.
05/06/2026

Please see link to graduation photos. You can download the photos directly from the site.

HACC Graduation 2026

04/30/2026

Congratulations to the 79 graduates of the The Heating & Air Conditioning Contractors of Maryland class of 2026! What an incredible evening honoring your hard work + dedication to the HVACR trade, including our very own Baltimore Technicians - Ryan Wagener and Steve Adams!

The industry is stronger because of skilled professionals like you. Congratulations to all!🎉

04/30/2026

Yesterday, we celebrated BOTH Luke and Ernesto on their graduation from The Heating & Air Conditioning Contractors of Maryland 4-year apprenticeship program! 🎓🎉 Thank you, HACCMD for helping our two grads reach this great accomplishment! Please join us in congratulating Luke and Ernie in taking the next steps in their careers!

Congrats to the class of 2026! 79 apprentices that will shortly be Journeyman. We are so proud to have been part of you...
04/30/2026

Congrats to the class of 2026! 79 apprentices that will shortly be Journeyman. We are so proud to have been part of your story! Check back next week for the professional photos.

Address

P. O. Box 730
Severna Park, MD
21146

Telephone

(410) 431-8889

Website

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