Black Belt AC and Electric explained the entire process before replacing my entire home AC system. The efficiency we gained as a result is nothing short of amazing! Our home is so much more comfortable, air evenly distributed in both wings. This had never been accomplished before and we were told by another company to install an additional unit to get even air flow. We are so impressed with Black Belt, give them a call before making a decision on another business to install or repair your AC system. You will not be disappointed.