A Rockville disposal that hums, leaks or sits silent is usually jammed, tripped or worn out, and some slow kitchen sinks are really a clog past the unit. A plumber can find which it is and replace the disposal if needed. Call the number on this page to be connected with a local plumber in Rockville.

Is my disposal worth fixing?
Often, yes. A plate jammed by a bone or fruit pit, a tripped overload button, a loose mounting ring or a worn gasket on the discharge pipe can all be fixed in one visit. The answer changes when water leaks from the bottom of the housing or the motor trips again right after a reset. Those point to failed internal seals or a tired motor, and a new unit is usually the better use of your money.
Rockville's median home was built in 1980, so many kitchens mix postwar or 1970s drain lines with newer cabinets and appliances. When a disposal is replaced in a house like that, it is worth having the plumber look at the trap and the drain arm, which may be older than everything else under the sink.
Who issues plumbing permits in Rockville?
It depends on your water provider. The City of Rockville's own water system serves about 70% of the city, and WSSC Water serves the rest. The City's water heater permit guide shows how this splits: City-water addresses get plumbing permits from the City's Department of Community Planning and Development Services, while WSSC-water addresses go to WSSC Water Permit Services. The City publishes a Water Service Provider Map so you can check your address. For a simple disposal swap, the plumber can tell you whether any permit applies.
What if the backup is coming from the sewer?
If the kitchen sink, a toilet and a basement floor drain all back up together, the disposal is not the problem. The City of Rockville lists a 24-hour emergency line, 240-314-8567, for sewer backups and water main breaks; WSSC-served addresses can reach WSSC Water's Emergency Service Center at 301-206-4002. A clog inside your own pipes still needs a plumber, and the plumber can help tell the two apart.
A local note
Rockville is the county seat and a busy I-270 tech corridor city, and many houses here change hands or get remodeled often. If you are buying an older home, running the disposal and dishwasher together during a walkthrough is a fast way to see whether the kitchen drain keeps up.
Garbage Disposals questions in Rockville
Does replacing a garbage disposal need a permit?
Who do I call if sewage is coming from the public sewer?
Is it safe to reach into the disposal to pull something out?
Why does the disposal still smell after I clean it?
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