One of North County's oldest cities has some of North County's oldest drains. Every meal, every shower, every load of laundry since the houses went up left a little something behind on the pipe walls. So when your drain clogs and the snake clears it, the relief is real but usually temporary, because the snake only opened a tunnel through the buildup. Everything lining the pipe is still lining the pipe, and it closes back in over time.
Hydro jetting cleans the whole pipe. A high pressure stream of water scours the inside of the line, all the way around. Years of grease, soap, and scale can get flushed out of the pipe.
Should every clog get jetted? No, and we'd rather tell you that. Plenty of clogs are one time problems that a snake handles completely. The contractor looks at your actual situation, explains it in plain English, and offers a straight read. Then it's your call, and only yours.