Responded within 15 minutes during a blizzard and worked during the snow storm and near zero temperatures to get generator working during a power outage. Didn't leave until we had power. Followed up throughout the night and next day. Suggested and installed improvements, including fixed natural gas hook up to a more modern connection for better pressure, installed a heating blanket for motor, and a monitoring system for mobile phone and internet alerts. Very professional and would recommend to anyone for all home or business standby generator needs. They also installed a complete system for my daughter and they also were very pleased and had given me their contact information when we had our failure. So even though we were not a customer who had them install our generator they responded quickly to our service needs.