Installation and Sizing Replacement and Service on all makes and models. Residential and Commercial Preventative Maintenance : 1 Year Agreement $119.95 We will come out twice a year and do a complete safety and diagnostic check on the unit. Each additional unit is $110.00. First pound (lb.) of refrigerant is free. Free Estimates Free Service call with all repairs requiring parts Mon thru Fri 8-5 Sales of all makes and models. Duct Replacement and improvement