One day before our home inspection in preparation for selling our house, our old water heater began leaking. My wife asked Kellam for a quote for replacing the direct vent heater with a similar system. They told her $2800 and we agreed to that price. When they arrived at the house, they said the price would actually be $6200 because we needed some sort of special system (despite the fact that the old system was a standard builder grade 50-gallon tank heater). With just hours left in the work day and not enough time to find another company to do the work, we agreed to it. We asked for an itemized invoice, which the installation tech said we would get from the managers. Now they are saying the managers are not at work and they only have “flat rate billing.” So they knew we were stuck and with no time to find another company before our inspection and they raised the price by 220%. Yes we agreed to it but it seems pretty clear that they knew we were in a tight spot and took advantage of us. I recommend avoiding them if you possibly can.