I cant praise Weathershield enough for the service they have provided. I had previously paid another company to come clean my split AC. It was emitting a moldly smell, which I assumed was becasue of mold and build up on the blower wheel and in the pan. The first company used a strong smelling cleaner and told me it was clean. It took 2 weeks for the smell of the cleaner to dissipate, and when it did, the old moldy smell was still there. I took the unit half apart and could see a huge amount of build up still on the blower wheel and black mold growing on the interior of the plastic casing which covers and protects the coils and blower apparatus. I called Weathershield and asked if they could have a technician call me back to discuss my situation. I didnt want to pay - again- for a service that wouldnt clean the unit properly and thoroughly. The office had John, the head technician, call me back that very day and he described to me in detail how he would clean the unit, which was fa ar more involved process than the first company used. I called the office back and Christina scheduled John to come and perform the cleaning the following week. The office called the day before to confirm the appointment, and called the morning of to let me know that the technicians were on their way. John and his helper Hunter showed up right on time, placed booties over their shoes before they come into the house, and spent the next 2.5 hours carefully and thoroughly dismantling, cleaning. and reassembling the unit. I was right there the entire time, and they took great care to explain to me what they were doing and why, without ever showing the slightest discomfort that I was there asking questions and watching the entire time. The next day I heard a slightly unusual sound and called Christina, who scheduled John to come right back out. He made a quick and minor adjustment and the unit is running perfectly now: smoothly, quietly, and the odor is gone. I have lived in SoFla for 13 years, and this company gave the best service with the most professionalism that I have ever received since moving here. Kudos to everyone at Weathershiled for their professional and technical expertise. I will never use another AC company.