Sean Gaffney

Vice President of Construction

Sean leads the organization's field operations. He is responsible for manpower, field-to-office coordination, and client satisfaction. Sean has 15 years of construction experience and holds various licenses and certificates for Plumbing, HVAC, and welding. He is a journeyman Steamfitter trained at Local 420. Sean holds a Bachelor’s of Science Degree in Project Management from Colorado State University, and a certificate in Construction Management from Temple University, Fox School of Business. In addition, Sean completed the Mechanical Contractors Association, Project Management program and is OSHA 30 certified.

Other Team Members

Drew Silich

Vice President of Operations

Michael Gaffney

Senior Vice President

Mary Gaffney

President & Owner

5101 Birney Highway
Aston, PA 19014

Contact Us

email info@gemmsi.com

office (610) 361-9667

fax (610) 361-9677