Cortez Heating & Air Conditioning

Mark Anderson


Mark Anderson bought Cortez Heating & Air Conditioning in 1986 when the business was a mix of 85% construction and 15% residential service with five employees. In 1996 he started converting the company to a commercial-only service business, and in 1997 he purchased Penn Mechanical, with 75% of their business volume in service.

Over the next ten years Anderson continued to narrow the focus of the business. Today Cortez is a thriving business with more than 40 employees servicing commercial and industrial accounts located throughout Florida and the Southeastern United States.

For nearly 40 years Mark has sustained industry-leading organizations such as the American Society of Mechanical Engineers (ASME), the American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE), the Manasota Air Conditioning Contractors Association (MACCA), the Florida Refrigeration & Air Conditioning Contractors Association (FRACCA), and the Gulf Coast Builders Exchange (GCBX).

Mark lives in Sarasota, Florida with his wife Marcia, who he has known for nearly 50 years, married since 2012. When they’re not working on the business they enjoy traveling the world and spending time with their children and grandchildren.


Marcia Watson

Secretary Treasurer

As the corporate Secretary and Treasurer for Cortez Heating & Air Conditioning, Marcia comes to the HVAC business with decades of experience in the convenience store/gas station industry where she managed dozens of stores and hundreds of employees and consistently ranked as one of the leading performers in the country.

With her Bachelor of Arts Degree from Dickinson College and years of work experience, Watson brings several essential business management skills to the company including human resources, financial administration, and internal audits. 

Marcia and Mark have been married since 2012. Together they have three children, and six grandchildren.


Steven L. Dobbins

Vice President of Sales

Steve Dobbins is a seasoned sales and operations executive with extensive experience developing and leading service teams and driving operational growth in the commercial mechanical HVACR & BAS industry.

Prior to joining Cortez Hearting and Air Conditioning in 2020, Dobbins spent four years with Harper Limbach as Area VP/GM of Service for Florida and fourteen years as Sales Manager with Comprehensive Energy Services. With his 35 years of experience, Steve actively supports industry organizations including the Building Owners & Managers Association (BOMA), the International Facilities Managers Association (IFMA), and the Central Florida Hotel Lodging Association (CFLA).

Steve is located in Orlando, Florida where he lives with his wife Cynthia, high school sweethearts, now married for 42 years.


David ShepHard

Director of Service Operations

David Shephard brings more than 20 years of experience in the HVAC industry to his role as the Director of Service Operations for Cortez Heating and Air Conditioning.

Shephard studied business and accounting at the State College of Florida, completed the MACCA apprenticeship program when he first started in the trade, and holds a Class-A Air Conditioning Florida Contractor’s License. Before being promoted to the Director of Service Operations position, David was a service manager at Cortez for 10 years.

David, a Florida native, has been married for 19 years, and has three children.

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