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A woman using a plunger to unblock a kitchen sink.

Kitchen sink clogs are often caused by grease and other food residues. This guide will help you identify the signs of a grease-clogged sink, understand the causes, and learn effective methods to prevent and fix these clogs. Proper maintenance can save you from the hassle and expense of severe blockages.

Introduction: Understanding Kitchen Sink Clogs

Kitchen sink clogs are a common household problem, particularly those caused by grease buildup. Grease, oils, and fats can solidify in your pipes, leading to persistent blockages that are difficult to clear without professional help.

What Causes Grease Clogs?

Grease clogs occur when fats, oils, and grease (FOG) are washed down the sink. These substances can cool and solidify in the pipes, trapping other debris and gradually forming a significant blockage. Common contributors include:

  • Cooking Oils and Fats: Bacon grease, butter, and other cooking fats.
  • Food Residues: Particles from washing dishes.
  • Non-Dissolvable Items: Coffee grounds and fibrous foods.

Signs of a Grease Clog

Slow Draining Water

One of the first signs of a grease clog is slow draining water. As grease accumulates, it restricts water flow, causing your sink to drain slowly.

Foul Odours

Decomposing food trapped in grease can emit unpleasant odours. If your kitchen sink smells bad, it could indicate a grease buildup.

Gurgling Noises

Gurgling sounds from your drain often mean there’s a blockage forming, as air struggles to escape past the greasy obstruction.

Recurring Clogs

If you frequently experience clogs despite regular cleaning, it might be due to an underlying grease problem.

Illustration of a kitchen sink overflowing with water.

Preventing Grease Clogs

Proper Disposal of Fats

Never pour grease or oil down the drain. Instead, collect it in a container and dispose of it in the trash.

Use Sink Strainers

Install strainers in your sink to catch food particles and prevent them from entering the drain.

Regular Cleaning

Clean your sink and pipes regularly with hot water and a mixture of baking soda and vinegar to break down minor grease deposits.

Fixing a Grease-Clogged Sink

Hot Water and Dish Soap

Pouring boiling water mixed with dish soap down the drain can help dissolve and flush away grease clogs.

Baking Soda and Vinegar

A mixture of baking soda and vinegar can be an effective natural cleaner. Pour baking soda into the drain, followed by vinegar. Let it sit, then flush with hot water.


A plunger can help dislodge clogs caused by grease. Ensure a tight seal and plunge vigorously.

Professional Help

If DIY methods fail, it’s best to call a professional. They can use tools like hydro-jetting to clear stubborn grease clogs effectively.

Conclusion: Keep Your Drains Clear

Proper maintenance and mindful disposal of grease can prevent kitchen sink clogs. Regular cleaning and the use of strainers can also help maintain clear and functional drains. When in doubt, contact a professional to ensure your drainage system is in top condition.

Person pouring chemical cleaner into a kitchen sink drain to clear a blockage.


1.0 What are some signs of a clogged kitchen sink?

Signs include slow drainage, foul smells, gurgling noises, and frequent clogs.

2.0 Why is it recommended to contact a drainage expert for unblocking?

Experts have the right tools and knowledge to handle severe blockages and can prevent further damage.

3.0 What is the potential downside of using chemical drain unblockers?

Chemical drain unblockers can cause pipe corrosion and long-term damage, leading to more costly repairs.

4.0 What is the primary cause of blocked kitchen sinks?

Grease is the leading cause of blocked kitchen sinks due to its tendency to solidify in pipes.

5.0 How does grease become problematic in drains?

Grease solidifies as it cools down in underground pipes, causing blockages.

Keep Your Kitchen Sink Flowing!

Avoid the hassle of a grease-clogged sink. Contact Unblockers.net today for professional drain cleaning and maintenance services.


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