I spoke with Dennis on the phone. He analyzed my problem and we made an appointment for Nate to come out a few days later to fix our sink. I was called 30 minutes before my appointment to let me know Nate was on his way. He diagnosed my sink problem and had all the parts to fix it with him on his well equipped (and immaculately neat) truck. Nate even took the time to look over my water filtration system and my hot water heater when I asked him for his advise. He was very knowledgeable. I would use Go Green Plumbing again and would highly recommend them.