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Our Story
Our main lines of business include: General Contractors, Mechanical Contractors.
G.Y. Engineering Co. has been listed in the Blue Book since 2008.
What We Do
Regions & Counties Serviced
- San Francisco, Oakland, San Jose
California 1
- San Mateo
Our CSI Codes
01 35 16 - Alteration Project Procedures
23 01 20 - Operation and Maintenance of HVAC Piping and Pumps
23 01 80 - Operation and Maintenance of Decentralized HVAC Equipment
23 06 20 - Schedules for HVAC Piping and Pumps
23 06 50.13 - Heating Boiler Schedule
23 06 80.16 - Convection Heating and Cooling Unit Schedule
23 20 00.00.01 - HVAC Piping and Pumps
