Common causes include:
- Grease and oil that harden inside the pipe
- Food scraps, coffee grounds and cooking residue
- Soap scum or detergent build-up
- Small foreign objects caught in the drain
- Deeper blockages further along the kitchen waste line
In Sydney, a blocked kitchen sink drain can also be linked to older pipework or recurring drainage issues. Pinpoint Plumbing can inspect the drain, clear the blockage and check whether there are any underlying problems in the pipework.