Who We Are
Who We Are

Gerald Marino, CPD, President of MDC, Inc., established an organization to provide a continued and genuine focus on quality, commitment and opportunity within the mechanical design and engineering industry. Since 1990, Gerald has designed, managed, and overseen thousands of projects in San Diego and throughout the country.
MDC, Inc. began doing business in 2006 and was officially incorporated in 2007.
MDC was acquired by Keel's Landing, LLC in March 2024.
As a Keel's Landing Partner Company, MDC is a Native American (DBE) and Service-Disabled Veteran-Owned (SDVOSB) small business with multi-state licensure and over six decades of proven industry experience.
What We Do
What We Do

HVAC and Plumbing engineering expertise encompassing all project types: including Shell Building and Campus Design, Commercial Office Tenant Improvements, Apartments, Mixed Use Facilities, Hotels/Motels, High Rise Structures, Biotech and Manufacturing Facilities, Vivariums, Electronics Labs, Fitness Centers, Medical Office Buildings, Primary Care Clinics, Acute Care Facilities, Medical Centers, Retail Centers, Spas, Resorts, Clean Rooms, Community Centers, Colleges, Schools, Restaurants, Breweries, Military Facilities, Cannabis Grow Facilities, Test Labs and Dispensaries.
Why We Are The Right Choice
Why We Are The Right Choice

The MDC staff possesses more than 35 years of qualified experience within the building design, engineering and construction industry.
No matter the project type, MDC will provide HVAC, Plumbing design and engineering services focused on quality and service while adhering to the project time schedule.
Now more than ever, indoor air quality is becoming essential for businesses to ensure the safety of their employees. Adding advanced air cleaning devices and air filtration system upgrades can achieve great results, reducing or eliminating viruses, bacteria, mold and other allergy contributing particulate within an air conditioning and ventilation system. We can help!
Mechanical Design and Engineering
Mechanical Design and Engineering
“Our focus is to establish relationships through quality work, commitment, positive attitude, and great people. I enjoy being in a position that allows MDC, Inc. to provide opportunity for others to succeed in business and in life.”
Gerald Marino CPD
Founder & Director of Engineering
Gerald Marino CPD
Founder & Director of Engineering



Quality mechanical design
delivered on time.