Start with the problem
A kitchen sink can drain poorly even when the disposal appears to work. Grease or debris may be farther along the pipe, beyond the part you can see. Tell the plumber whether both bowls back up and whether dishwasher use changes the problem. Those details help define which connections need checking.
When to ask for help
- Sink water lingering after washing dishes
- Gurgling when the dishwasher discharges
- Water moving between two sink bowls
What the plumber needs to check
Grease and food residue may collect inside the line. A blockage downstream of the trap can affect both bowls even when the disposal runs normally.
How should I prepare?
Clear the cabinet for access and explain whether the dishwasher or disposal changes the symptom. Tell the provider about chemicals already put down the drain.
Before you agree to the work
A sound waste line may only need clearing. A recurring restriction deserves a discussion of pipe condition, layout, and whether inspection would change the repair plan.
What should I move before the plumber arrives?
Clear the cupboard under the sink and leave a safe working area. Mention any drain chemicals you've used so the provider can plan around them.
How to arrange the next step
- Describe the issue, property location, and any immediate safety concern.
- Ask the provider to confirm that they handle the job at your address.
- Check the visit charge and agree on any repair before it begins.
- Keep the findings and ask what was checked when the work was finished.
For Oregon provider checks, use our license and scope guide. This website does not perform plumbing work or guarantee a provider match.
Questions about kitchen drain cleaning
Can both sink bowls share one clog?
Yes. A restriction after the bowls join can affect both. The provider should assess the shared drain rather than assume two separate blockages.
Will a new disposal clear the pipe?
Replacing the unit does not remove a downstream obstruction. Confirm which component is actually causing the problem.
Related homeowner guide
Why does the same drain keep clogging? — If the same drain blocks again, ask what the previous clearing revealed and what a closer inspection could establish.
General service guidance · Updated 2026-10-02 · How we prepare our content
