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4 Reasons Why Your Garbage Disposal Is Leaking

A leaking garbage disposal can be a frustrating and messy issue for any homeowner. Not only does it disrupt your daily routine of chores, but it can also lead to more significant plumbing problems if not addressed promptly. In this article, we’ll explore the common reasons why your garbage disposal is leaking and discuss the necessary steps for repair, along with the potential costs involved.

  • Faulty seal
  • Loose connections
  • Cracked disposal body
  • Clogged drain line

While the repair cost for simple issues like loose connections or a faulty seal is generally reasonable, we’ll also explore at what point it’s worthwhile to replace your garbage disposal altogether.


Have your garbage disposal repaired as soon as today. Call Thornton & Grooms.

Don't let a leaking garbage disposal snowball into a major plumbing problem. Call Thornton & Grooms at (248) 644-7810 or click below to schedule a repair online today. With prompt and efficient plumbing service, we'll have your garbage disposal back in top-notch condition, ensuring a clean and smoothly running kitchen.

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#1 Faulty Seal

One of the most common reasons for a leaking garbage disposal is a faulty or worn-out seal. The seal is designed to prevent water and food particles from escaping the disposal unit. Over time, seals can degrade due to regular use, age, or improper installation. To check for a faulty seal, inspect the area around the disposal for water puddles or dampness. If you notice any, it's likely that the seal needs to be replaced.

Repair Tip: Replacing a garbage disposal seal is a relatively straightforward task. However, if you're not comfortable doing it yourself, hiring a professional can ensure the job is done correctly. The repair cost for a faulty seal is generally reasonable, making it a worthwhile investment to prevent further damage.

#2 Loose Connections

Another common culprit behind a leaking garbage disposal is loose connections. The disposal unit is connected to the sink and drain pipes through various fittings and fasteners. If these connections become loose over time, water can escape, leading to leaks. Check all the connections and fasteners, including the mounting bolts, hose clamps, and drain connections, to ensure they are properly tightened.

Repair Tip: Tightening loose connections is a simple and cost-effective solution. Use a wrench to secure any loose bolts or fittings. If you're unsure about the connections or if the problem persists, seeking professional help may be necessary. The repair cost for loose connections is generally low, especially compared to potential water damage costs if left unaddressed.

#3 Cracked Disposal Body

A less common but more severe issue that can cause leaks is a cracked disposal body. The disposal unit is exposed to a variety of food particles and debris, and over time, the grinding action can lead to wear and tear. This wear may result in cracks or fractures in the disposal body, allowing water to leak out.

Repair Tip: Unfortunately, a cracked disposal body usually requires a replacement unit. The repair cost for this issue can be higher than simple fixes, as it involves purchasing a new garbage disposal and potentially hiring a professional for installation. However, investing in a quality replacement will provide long-term benefits and prevent further water damage.

#4 Clogged Drain Line

A clogged drain line can also be a culprit for garbage disposal leaks. When the drain line is obstructed by food particles, grease, or other debris, water can back up and lead to leaks around the disposal unit. Regular maintenance and proper use can help prevent drain line clogs.

Repair Tip: Clearing a clogged drain line can often be done using a plunger or a drain snake. For stubborn clogs, enzymatic drain cleaners can be effective. However, if you are not comfortable dealing with plumbing issues, hiring a professional plumber is a wise choice. The repair cost for clearing a clogged drain line is generally reasonable.

When to Replace Your Garbage Disposal

If you find yourself repeatedly fixing leaks or if the unit's body is cracked, it may be more cost-effective in the long run to opt for a replacement. Cracks in the disposal body compromise its structural integrity, leading to ongoing issues and potential water damage.

Additionally, if your garbage disposal is showing signs of consistent malfunction, such as frequent jams, strange noises, or a lack of grinding power, it may be a clear signal that the unit has reached the end of its operational life. Investing in a replacement in such cases not only ensures a more efficient and reliable kitchen appliance but also eliminates the frustration of dealing with constant malfunctions.


Tired of a leaky garbage disposal? Call Thornton & Grooms today.

Contact us to book an appointment, and let our experienced plumbing professionals restore your garbage disposal to its optimal performance. We’re proud to offer some of the fastest response times in the Detroit-Metro area, including same-day service.

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