Beware of this company, and the shoddy work they perform. Called them out to do a simple check of the system, because the unit was running longer than it normally does. The tech found a shrader valve core that was leaking, he replaced and topped off the Freon and left. The system ran for 15 minutes and stopped cooling, called the tech back, he then tells us the air compressor has to be replace. Paid them to replace it, 2 hours later units stops working. Called out another company, to check the system, they found that the tech had contaminated the system by mixing different Freon from his gauge. They came out bleed the system and it partially working. Called George Brazil, the air compressor they installed is faulty, Trade Masters refuses to do anything. Beware!!!!