We used this company for a period of time, and the level of service and professionalism deteriorated to the point where we had to stop using them. The owner was friendly at first - then became increasingly terse and unpleasant as we expressed our dissatisfation with their several cancelations and missed appointments in getting our filters changed. They missed about 3 appointments and didn't want to come to our house unless they had another job in our area. We lost a considerable amount of time trying to work with them to no avail. Their prices remain higher than the competition, and they have great difficulty working with email. We finally had to find another company to service our water system.