A kitchen sink that clogs once is normal. A kitchen sink that clogs every few weeks, even after being snaked, usually means the buildup is coming from something ongoing rather than a one-time blockage.
Grease Buildup That Keeps Rebuilding
Grease and cooking oil that go down the drain don't just pass through — they coat the inside of the pipe and cool into a sticky layer that catches food particles. Even after a clog is cleared, that coating is often still there, ready to trap the next round of debris.
Older Brockton Cast-Iron Lines
In many of Brockton's pre-1950s triple-deckers, kitchen lines still run through original cast-iron pipe. Decades of buildup can leave a rough, narrowed interior surface that grabs debris far more easily than a smooth newer pipe — meaning the same amount of grease or food waste clogs an old line faster than a new one.
Garbage Disposal Habits
Fibrous scraps, coffee grounds, and starchy foods like pasta or rice can pass through a disposal and still cause buildup downstream, even when the disposal itself seems to be working fine.
A Partial Blockage Further Down the Line
If snaking only clears the clog for a short time, it may only be reaching part of the obstruction. A partial blockage further down — from grease, roots, or a low spot in the pipe — can keep collecting debris and clogging that same fixture again and again.
When it's time for more than another snaking
If the same kitchen sink has clogged more than twice in a few months, it's usually worth a closer look at the line itself — whether that means hydro jetting to actually clear the grease coating, or a camera inspection to find what's really going on.
Tired of the same kitchen sink clogging over and over? Our clogged drain clearing service gets to the actual cause. For grease buildup that keeps coming back, see our hydro jetting service.