OH NO!! Don't use these services. The so called owner is using the name Gwinnett Refrigeration. Yes The Serviceman who comes to Your aid is a hard worker with a really good way with words but he using the Good Name of a company with a good reputation to His advantage. He bought a service truck from the former owner, and never change the Company Name. Ask him for His Bonding information, Company Insurance and ask Him if He has Workers Comp for any persons he brings onto your property as laborers. Ask t see his current HVAC Journeyman Service Technician card!!! It will prove or disprove that he has met the required EPA standards under (section 608) of the US Regulatory Agency. If He does not Readily provide this document upon request, He is NOT authorized to be a service technician. Stay aware of the need to have a certified technician do work for you.