The appt. was set between 10 - 12. The technician, Dan, called me at 10 to let me know he would be arriving in 30 to 40 minutes. Dan was right on time, introduced himself and got right to work. Within a few minutes he had determined the problem, new springs needed. He replaced the springs, did a complete check on the opener, lubricated the track and chain, checked all the nuts & bolts holding the door together. No charge for parts, just labor and service call. Needless to say I am a very satisfied, happy customer.