Meet the Team
The People Behind Maddox Mechanical
Our team is committed to delivering dependable mechanical solutions with professionalism, expertise, and exceptional customer service. From leadership to field operations, every member of Maddox Mechanical plays a role in helping our clients keep their facilities running safely and efficiently.
Brannon Marcelline
Brannon Marcelline is the Founder, Chief Executive Officer, and Service Manager of Maddox Mechanical Services. With nearly 20 years of experience in the commercial HVAC industry, he has built the company into a trusted mechanical contractor serving healthcare facilities, manufacturing plants, senior living communities, and other commercial clients throughout Georgia.
Trained through Local 72 and the Mechanical Trade Institute as a Journeyman and Chiller Mechanic, Brannon brings extensive technical expertise and hands-on leadership to every project. He oversees company operations, field service, customer relationships, and quality control, ensuring each job is completed safely, efficiently, and to the highest industry standards.
Chief Executive Officer & Service Manager
Dianne Marcelline
Dianne Marcelline serves as the Bookkeeper and Office Manager for Maddox Mechanical Services, bringing more than 30 years of experience in bookkeeping, office administration, and small business financial management.
She oversees the company's daily administrative operations, including accounting support, payroll coordination, invoicing, accounts payable and receivable, and office management. Dianne holds a Master's degree in Business Administration and uses her education and decades of experience to strengthen the company's financial processes and day-to-day operations. Her attention to detail and commitment to efficiency help provide the strong administrative foundation behind Maddox Mechanical's continued success.
Bookkeeper & Office Manager
Chief Financial OfficerElizabeth Marcelline
Elizabeth Marcelline serves as the Chief Financial Officer of Maddox Mechanical Services, overseeing the company's financial operations, contract administration, business planning, and strategic growth initiatives.
With a background in business management, real estate, and entrepreneurship, she brings a thoughtful approach to financial oversight, operational efficiency, and long-term planning. Elizabeth works closely with company leadership to strengthen internal processes, support sustainable growth, and ensure Maddox Mechanical continues to deliver the dependable service and professionalism clients have come to expect.