There are two different types of work anticipated under this contract: 1) preventative maintenance and 2) general and emergency repairs to restore operation of the systems. Prospective bidders are being asked to provide costs for a fixed compensation preventative maintenance contract, which shall include compensation for all filters, belts, other related materials associated with the performance of preventative maintenance, labor, and overhead for each facility. Compensation for general and emergency repairs to the systems will be on a time and material basis, with the scope of work to be mutually agreed upon by the City and the contractor. The contractor must be capable of making repairs or replacing equipment such as motors, pumps, pulleys, belts, compressors, gauges, instruments , filters, valves, piping, furnaces, boilers, or other appurtenances used to control the temperature, humidity, and air flow, and electrical lines, mechanical and control components are included.Prospective bidders are also being asked to provide a mark-up on parts and materials purchased for general and emergency repairs. The contractor shall furnish all labor, equipment, parts, and materials, to maintain and operate the respective HVAC systems in first class working order and operating condition at all times. The contractor shall provide the necessary transportation for workmen, materials, and equipment to fulfill the terms of the contract. HVAC Preventative Maintenance Services shall be performed four times per year during the hours of 8:00 am through 4:00 pm and must be pre-scheduled and coordinated with each Department