They have stood by us since we found out that our unit wasn’t working. They came out the next day and gave an evaluation and choices on what they could do to repair or replace. We chose to replace it. They had access to our condo while we were not there and did the job checking, with us, by phone when they encountered a problem. They had to return n to help us set up the thermostat to our phones. After changing the thermostat with 3 different ones they found one that would work at no extra cost to us. I highly recommend them. Thank you Craig and Alan. Sue Usdowski.