1. Inspect and perform assessments of all HVAC units, for all buildings owned by the DCCD. If HVAC units need to be repaired and/or replaced, contractor shall provide description of deficiencies along with cost estimates, within five (5) business days from inspection to the DCCD. 2. Inspect and perform assessment of all Walk-In Cooler/Freezer at the Shiprock Child Care Center. If Walk-In Cooler/Freezer needs to be repaired and/or replaced, contractor shall provide description of deficiencies along with cost estimates, within five (5) business days from inspection to the DCCD. 3. The contractor shall develop a written preventative maintenance plan. The plan shall incorporate preparations for hot and cold seasons, to properly weatherize all HVAC units, which is cost and energy efficient for all buildings owned by the DCCD. 4. The written preventative maintenance plan shall include a bimonthly visit by the contractor to all DCCD Child Care Centers buildings listed (see site locations list), to maintain optimal functionality of all the HVAC units.