A clog is never the whole story. The line under it is.
A clogged drain in a beach town has usually been a long time coming. The cottages near the pier have lines that have handled decades of sand, grease, soap, and salt influenced everything, and when they finally back up, the hand snake from the cheapest quote is very often not going to reach the problem. That's the secret nobody explains about drain cleaning. It's not one service, it's tiers of equipment, and who you call determines which tier shows up. Wrong tier, wasted afternoon, clog still there, and now it's had more time to pack in.
The way around all that is one honest phone conversation before anyone's sent out. What's backing up, how often, has it happened before. Those answers do the choosing. Straightforward clog, standard machine, done in a visit. Repeat offender, longer equipment or a camera down the line, because a drain that keeps failing is trying to tell you something and it's cheaper to listen than to guess.
If what the camera finds is bigger than a clog, you'll get the explanation straight, plain English, no pressure, and the decision stays yours. Most of the time, though, the right equipment on the first visit is the whole story. Drain clears, life resumes, and the phone number goes back in the drawer where it belongs.
"The drain's flowing again, and you actually know why. That's the difference."