Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity, and resources to see you through your toughest challenges. From design/build to upgrading and retrofitting to ongoing facility maintenance, GEM is the contractor you can rely on for reduced cost of operation and long-term stewardship of your facility. Services include: Boiler installation, repair & maintenance Electrical GEM Process Solutions (GPS) - design/build for process-driven construction projects In-house fabrication shop Machinery installation Mechanical (HVAC, process piping, plumbing) Mechanical insulation Structural steel erection GEM Inc. is a member of the Rudolph Libbe Group of Companies.