From a kitchen sink in Carlton Hills to a laundry line in Sky Ranch, most clogs start the same way. Grease, soap and food build up on the inside of the pipe until the water can't get by. A hand snake from the drain only reaches so far, and if the clog is sitting past that, it doesn't get cleared, it just gets moved around until it backs up again.
That's why the first phone call matters. You tell us what's backing up, how often, and what's been tried, and that decides what comes out to your house. A cable machine for a simple stoppage. A longer cable for a clog out in the main. A camera when the same drain keeps coming back and nobody has seen why.
If the line needs more than a clearing, you'll hear that plainly, with what the contractor saw and why it matters. If a clearing is all it needs, that's what you'll hear too. Either way the choice is yours.