We've used Dependable for several year for air/heater maintenance, but first time for contact was a scorching Friday evening. Voice mail said they were open only during week but a message could be left. I didn't leave a message (but should have) and searched for other phone contacts on line. Was an option to make an appointment online which I did. Was contacted Monday morning, but no appt until Tuesday. Technician who came to fix the problem was wonderful as usual, and told me that if I"d left a phone message, their on call person would have contacted me Sat. No where online or during phone message was there any mention of an on call technician, but there sure should be.