Mary Gaffney

President & Owner

Mary Gaffney, President of GEM Mechanical, has over 16 years in the construction industry and over 38 years of project management experience ($25K to $50 Million in size). Her background and experience include project management, operations management, sales, construction management, contract management, and construction technology.
Mary wants every job, regardless of size, to end with a happy owner who enjoyed the process, is completely satisfied with the product delivered, believed their thoughts and ideas were incorporated in the end-result, and felt GEM Mechanical was always accessible, genuine and professional.
Although GEM is a family business, Mary has assembled a team of skilled and seasoned industry professionals who embrace GEM Mechanical’s corporate culture of uncompromised customer service, quality craftsmanship and community involvement. Community involvement is extremely important to Mary. She encourages her team members to engage with local charities and programs on a personal level.
Mary holds a Master of Business Administration degree and a Bachelor’s of Science, Management Information Systems from Widener University. She sits on the Board of Governors for the Mechanical Contractors Association of Eastern PA and is Treasurer of the National Association of Women in Construction - Philadelphia Chapter. Mary is OSHA 30 Certified.