Generally, if your garbage disposal is still turning on but it's not working as it should, a plumber is probably the best professional to diagnose and fix the problem. While a skilled general handyman might be equipped to fix a garbage disposal, they might have more trouble getting parts if needed. 

If your garbage disposal does not turn on at all, it might be an electrical problem rather than a mechanical or plumbing-related one. So, you might need an electrician to check and repair your wiring.

Usually, if you speak to any of these professionals, they should be able to point you to the right service professional based on the issues you're experiencing.

No matter what type of professional you choose, make sure you do the following before hiring anyone:

• Verify that they're licensed, bonded and insured

• Read their customer reviews and testimonials

• Find out if they offer a warranty for workmanship and parts

• Get price quotes from at least three professionals

The national average cost for professional garbage disposal repair is approximately $100 to $230,* according to Thumbtack data. A licensed plumber should include the cost of labor when creating a quote, and you can expect it to cost more for complicated repairs that take longer to complete. For example, fixing a leaking disposal or making electrical repairs is usually more time-consuming and expensive.

These factors can also raise the cost of repair:

• Complex disposal features like auto-reversing and multiple grind stages

• High-power motors and stainless steel parts instead of plastic

• Cities with a high cost of living (which can impact labor costs)

*Data on file at Thumbtack. For a personalized cost estimate, request a quote from a professional.

For a licensed plumber, fixing a garbage disposal usually takes 30 minutes to two hours. However, the exact amount of time will depend on the complexity of the repair. For example:

• Fixing a tripped breaker is as simple as flipping a switch and usually takes a few minutes

• A burnt-out motor means replacing the disposal, which can take hours.

• Most leaks involve tightening connections or replacing worn gaskets, which can take roughly an hour.

• A minor clog can take less than an hour to fix. But a severe clog may require disassembling the unit, which typically takes significantly longer.

Here's what you can expect when you hire a plumber to fix your garbage disposal:

• Diagnosis: The plumber will check for simple fixes like a tripped breaker. Then, they’ll access your disposal to inspect it and quote you a price for repair.

• Disassembly and repair: If your disposal has a leak, the plumber will check the gaskets and connections. For a clog, they might take the disposal apart to clear it.

• Reinstallation or replacement: If the issue is fixable, the plumber will reinstall your disposal and ensure it works properly. If the unit needs to be replaced, they’ll recommend a new model.

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

If you’re deciding whether to hire a professional for garbage disposal repair, there are a few important factors to consider.

For starters, some minor fixes can be DIY-friendly. Here are examples of basic repairs savvy homeowners can handle themselves:

• Simple clogs

• Tripped breaker

• Resetting the disposal

• Loose mounting hardware

However, it’s usually best to hire a pro for any repair that involves:

• Disassembling your disposal unit

• Fixing the electrical wiring

• Installing new piping

• Checking local permits or plumbing codes

• Using tools you don't already have (ex: wrenches, pliers, screwdriver, hex key, etc.)

A licensed plumber can also help identify issues (like a burnt-out motor) that indicate you need to install a new garbage disposal instead of repair it.

Minor garbage disposal issues like clogs, damaged blades or a worn gasket are usually worth repairing. In most cases, these repairs are faster and less expensive than replacing the entire unit.

However, it’s usually best to replace the unit in the following situations:

• Old disposal: Models older than 10 years are typically near the end of their lifespan.

• Frequent repairs: If you experience constant issues with your disposal, it may be cheaper in the long run to replace it.

• Burnt-out motor or cracked housing: Replacing these parts often comes close to or exceeds the price of installing a new disposal.

Contact a local plumber to get a quote on garbage disposal installation near you.

If you notice any of the following, your garbage disposal likely needs repairs:

• Slow or no draining: If your sink won’t drain, there’s probably a clog somewhere. You can usually clear minor clogs with vinegar and baking soda. But if the sink still doesn’t drain, a plumber may have to disassemble and clean your disposal.

• Not turning on: If the unit has power and won’t turn on, the motor may be bad.

• Leaks: A leak may require replacing a gasket or replacing the unit if there's a crack.

• Food not grinding: Dull or damaged blades can make your disposal less effective.

If your unit is cracked or has a bad motor, you’ll likely need to replace it. Reach out to plumbers in your area to get a quote for repairs and replacement.