I was furious at this company when I found that the newly installed door could not open up the following day. To my surprise, the three individuals I spoke to from this company through the phone listened to me patiently. One of them instructed me on simple trouble shooting procedures as he sounded to be sure that there was no major problem with my door. I realized that the power to the door was plugged off, that’s why the door could not open! I was a little embarrassed for accusing the technician of shoddy work. They even called me the next day to follow up. Thanks guys!!