5 Homemade Solutions To Unclog a Kitchen Sink

Dealing with standing water in your kitchen sink? Before you reach for harsh chemicals or call a plumber, try these simple home remedies to unclog your kitchen sink using common items already in your pantry. These solutions are effective, affordable, and safe for most types of plumbing.

At Super Service Today, we’re all about helping homeowners find practical answers first – and stepping in when it’s time for a professional fix.

1. Hot Water Flush – Best for Mild Grease Buildup

Sometimes all your sink needs is a good flush. Boiling water can help melt grease and loosen light blockages caused by soap scum or fat buildup.

How to do it:

1. Remove standing water from the sink

2. Bring a kettle of water to a rolling boil

3. Carefully pour in stages, allowing water to work through between pours

4. Repeat 2–3 times if needed

NOTE: For PVC pipes, stick to very hot (not boiling) water to avoid warping the plastic.

2. Baking Soda & Vinegar – Best for Everyday Clogs

This chemical-free fizzing combo can tackle common kitchen sink odors and minor organic blockages.

How to do it:

1. Pour 1 cup of baking soda down the drain

2. Add 1 cup of white or apple cider vinegar

3. Plug the drain to trap the reaction

4. Wait 15–20 minutes, then flush with hot water

Great for monthly maintenance or quick cleanup of lingering smells and slow drains.

3. Baking Soda & Salt – Best for Greasy Residue

This combo works similarly to the vinegar method but is gentler for older metal pipes. It’s a great overnight option if your sink is draining slowly.

How to do it:

1. Mix 1 cup baking soda with ½ cup table salt

2. Pour down the drain and let sit for several hours or overnight

3. Flush with hot or boiling water the next morning

This method helps break up thick buildup without harsh reactions.

4. Dish Soap & Hot Water – Best for Grease and Fat Clogs

Grease is one of the most common culprits in kitchen sink clogs. Dish soap cuts through it – just like it does on your plates.

How to do it:

1. Pour a few tablespoons of dish soap directly into the drain

2. Follow with a pot of hot (not boiling) water

3. Let sit, then run hot water for 1–2 minutes to flush

Repeat as needed for minor fat and oil clogs.

5. The Sink Plunger – Best for Food or Debris Blockages

If the clog is more physical (like food scraps or paper), a sink plunger is your best bet.

How to do it:

1. Use a clean sink-only plunger (not your toilet one!)

2. Fill the sink with enough water to cover the plunger’s rubber cup

3. Plunge forcefully several times to dislodge the blockage

If your kitchen has a double sink, plug the other drain first with a rag or stopper to ensure strong suction.

Safety Tips Before You DIY

• Avoid using multiple chemical cleaners as they can react dangerously

• Don’t force drain snakes unless you’re comfortable using one properly

• Limit baking soda/vinegar methods on older metal piping – use sparingly

• If you’ve tried multiple methods and still smell rotten eggs or sewage, call a pro. This could indicate a deeper drainage issue

When It’s Time to Call a Plumber

These home remedies to unclog your kitchen sink work well for surface-level clogs. But if you notice:

• Water backing up into other drains (like the dishwasher or bathroom sink)

• Gurgling sounds when draining

• Water draining extremely slowly or not at all

• You’ve tried these methods multiple times with no success

…it’s time to bring in a licensed professional.

Preventing Future Kitchen Sink Clogs

Keep your drains clear with these habits:

• Use a sink strainer to catch food scraps

• Never pour grease, fat, or oil down the drain

• Run cold water with your garbage disposal

• Once a month, flush with hot water and dish soap or baking soda

Call Super Service Today for Expert Drain Help

Tried everything and your kitchen sink is still clogged? Call the local pros at Super Service Today. We’re equipped to handle stubborn blockages with powerful tools and safe techniques that protect your plumbing.Call (781) 654-8373 today for fast, reliable kitchen sink unclogging service near you.