I had the AC unit drain line that was clogged, and the "emergency drain" was dripping. I tried the usual 'home remedies' and did not work. So I called them since they installed my other new unit. They came, worked on the drain for quite a bit, had to clean it twice. They also pointed out my coil was dirty ( it really was ) so I had them clean it. Not cheap, but they did the job well. Best HVAC company. Highly recommend!