With Adavanced Technologies the installation guarantee is 60 days. Any service call to the residence within 60 days will cost you 37 dollars. The best policy is to leave your phone number with the customer and inform them to call you if they have a problem. I tell all of my customers to call me directly for any/all service work that doesn't need new equipment. If you do this you will be amazed at how many customers will call you again and again for side jobs and refer you to their friends for side work.
This is CABL.com posting #170489. Tiny Link: cabl.co/mSvZ