Terrific customer service from beginning to end. Darlene was able to adjust our appointment to a later time and still keep the same date! That was huge! Rob called on his way to let us know what time he would show up and he was friendly and professional. He provided suggestions for maintenance to keep our unit running more efficiently and checked the furnace filter that needed changing. We have used H2C for plumbing and AC service and have been very pleased each time.