Garbage Disposal Repair And Replacement

Common Problems We See:

  • Won’t turn on at all

  • Hums but doesn’t spin

  • Clogged / drains slowly

  • Leaks

  • Bad smell / odor

  • Makes loud noise

  • Frequent jams

Got a clogged, jammed, or noisy garbage disposal? Knapp’s Service & Appliance Repair provides fast and reliable garbage disposal repair and replacement to keep your kitchen flowing smoothly. We service disposers from all major brands and models and offer honest recommendations. repair when possible, replace when better value. Quality workmanship, done right the first time. Book Knapp’s Service & Appliance Repair for trusted Portland garbage disposal repair and replacement.

Brands We Service:

  • InSinkErator

  • Waste King

  • Moen

  • GE

  • Whirlpool

  • Frigidaire

At Knapp’s Service & Appliance Repair, we fix or replace garbage disposals quickly and reliably. You’ll get honest answers, careful work, and repairs that stop jams and restore power so your sink runs smoothly. Ready to banish clogs? Schedule an appointment today.

We Can Also Help You With Your:

Schedule A Appointment With Your Trusted Technicians Today

Frequently Asked Questions About Garbage Disposals

  • In many cases, a disposal can be repaired if the issue is a jam, reset, loose connection, or a minor leak at the mounting assembly. If the unit is leaking from the bottom or the motor is failing, replacement is often the better long-term value. We’ll inspect the disposal and give you a clear repair vs. replace recommendation.

  • First, turn the switch off and check for a tripped breaker or GFCI outlet. Many disposals also have a reset button on the bottom that may need to be pressed. If it still won’t run, the issue could be a jam, wiring/switch problem, or a failed motor—at that point, it’s best to schedule service.

  • A humming disposal usually means the motor is getting power but the grinding plate is jammed. Stop using it right away to prevent overheating. A technician can safely clear the jam and check for damage to the internal components.

  • Leaks typically come from one of three places:

    • Top/sink flange: seal or mounting issue

    • Side inlet: dishwasher hose connection or gasket

    • Bottom: internal seal failure (often means replacement)
      We can pinpoint the leak source and recommend the most cost-effective fix.

  • Odors are usually caused by food residue stuck under the splash guard, inside the grinding chamber, or in the drain line. A proper cleaning and deodorizing service can remove buildup and help prevent the smell from returning.

  • To prevent clogs and premature wear, avoid:

    • grease, fats, and oils

    • coffee grounds

    • pasta, rice, bread (swells in pipes)

    • fibrous foods (celery, corn husks, onion skins)

    • large amounts of potato peels

    • bones, fruit pits, or non-food items

  • Run cold water before, during, and after use, feed food scraps in small amounts, and allow the disposal to clear fully before turning it off. Regular cleaning helps reduce buildup that causes odors and slow draining.