Kitchen Sink Keeps Backing Up? Here's Why
Quick answer: A kitchen sink that keeps backing up is almost always caused by grease buildup in the drain line. Fats and oils harden on the pipe wall and trap food waste, narrowing the line until water can't drain. Snaking clears a temporary path, but the grease layer remains, so it backs up again. Hydro jetting removes the grease entirely and restores full flow — the reliable fix for a recurring kitchen backup.
Why it's usually grease
Kitchen lines handle the heaviest grease load in the house. Even careful households send some FOG down the drain, and it accumulates over time. A garbage disposal adds food solids that stick to the greasy walls. The result is a line that backs up no matter how often you clear it.
The tell that points to grease is the pattern: a clog that returns, and returns faster each time, especially after cooking or running the dishwasher. That's grease narrowing the line and catching food behind it — not a one-off obstruction. A truly isolated clog, like an object dropped down the drain, doesn't come back on a schedule the way a grease-coated line does.
Why snaking doesn't hold
When a snake clears a grease-clogged kitchen line, it bores a hole through the blockage and the sink drains again — for a while. But the grease coating the rest of the pipe wall is untouched, so the line is still narrowed and re-clogs as soon as a little more FOG and food collect. That's the frustrating cycle behind a sink that's been snaked repeatedly and keeps backing up: the method clears the symptom and leaves the cause.
The fix that lasts
Hydro jetting scours the grease off the full pipe wall, so the line stops backing up. To keep it clear: scrape plates, collect cooking grease instead of pouring it down, use a strainer, and run hot water after washing dishes.
Because jetting removes the grease layer itself rather than punching through it, the line is restored to its full diameter and stays clear far longer than a snaked line would. Paired with good habits — keeping FOG out of the drain in the first place — a jetted kitchen line can run trouble-free for a long stretch. If your sink has backed up more than once or twice, that's the signal to stop snaking and clear the grease properly. Call (207) 419-2600.
When to call a professional
If a clog keeps returning, more than one drain is slow, or you're dealing with backups, odors, or roots, it's time for a professional look. A camera inspection pinpoints the cause and confirms whether hydro jetting is the right fix — call (207) 419-2600 for fast local service in Sterling Heights and nearby Metro Detroit.