Extended Services Liberty Electric Inc. has extensive experience working at Airport facilities. Our 35 years of experience working at San Francisco International airport and various airports located around the United States have given us the leading edge on airport technology. Maintenance of United Airlines aircraft parking lights. Acupark - premiere/revolutionary/state of the art guidance system. Biotech laboratories - Clean Rooms. Tenant Improvement. Environmental Control Systems. Energy Efficient Retrofits - chiller replacement. Conveyor Systems. 12KV Restaurant and Hotel Facilities. Data Communications. Program Managing. High Voltage.