While it's common to tip for appliance delivery, appliance repair technicians do not expect a tip, and some may even be offended by it. Appliance repair technicians are skilled professionals, so just as you do not need to tip a doctor, lawyer, or teacher, you do not need to tip for appliance repair. If you hire a repair technician for ongoing maintenance or use their services regularly, consider giving them a gift during the holidays to show your appreciation.