Best Home Theater Installation in San Antonio TX

Was given this company's name in the welcome wagon basket.  I called and explained the issue , quoted $79 for service call and diagnostic.   They  charged us $650 for approx. 40 minutes of running a camera 6 ft from clean out, and stating we had a blockage.  No invoice was given for explanation of services until 2 days later it was emailed.  I called the office and spoke to owner.  He just defended his workers, was very unprofessional, even started raising his voice.  Just beware before you have them come out.  Call another plumber.