How to Remove Garage Floor Stains

It seems like every time your car leaks something; it ends up on your garage floor. Over time, these stains can build up and create an unsightly mess. However, there are a few simple tricks that you can use to remove these stains and keep your garage floor looking clean. For example, use a stiff brush and some detergent to scrub stubborn stains. 

How to Remove Garage Floor Stains

You can also treat tough stains with a mixture of bleach and water. Just be sure to leave the mixture on for the recommended amount of time before rinsing it off. You can remove even the most stubborn garage floor stains with a little elbow grease. In this blog post, you will learn in detail how to remove garage floor stains by following the step & tips.

Summary: To remove garage floor stains, sweep or vacuum the area to remove any loose debris. Next, apply a heavy-duty concrete cleaner to the stained area and scrub with a stiff-bristle brush. Let the cleaner sit for 15-20 minutes, then rinse with a pressure washer or hose. Try a mixture of baking soda and water or a commercial rust remover for stubborn stains.

What Are Some Common Causes of Garage Floor Stains?

Many different things can cause garage floor stains. Some common causes include:

  • This is one of the most common causes of garage floor stains. Oil and grease can come from your car and other sources like lawn equipment or hobbies that use oil or grease.
  • Brake fluid can leak from your car and onto the garage floor, causing stains.
  • Antifreeze can also leak from your car and cause staining.
  • If you wash your car in the garage, soap and detergent can get on the floor and cause staining.
  • If there is any moisture on the floor, mildew can grow and cause stains.

Step by Step Processes for How to Remove Garage Floor Stains

Step 1: Identify the Stain

Before you start the cleaning process, it is crucial to determine the type of stain you are dealing with. Common garage floor stains include oil, grease, tire marks, paint, rust, and mildew. Identifying the stain will help you choose the appropriate cleaning method and materials. Each type of stain may require a different approach, so accurately assessing the stain will save you time and effort in the long run.

Step 2: Gather Necessary Materials

Once you have identified the type of stain, gather the appropriate cleaning materials. These may include:

  • A scrub brush
  • Absorbent materials like kitty litter, sawdust, or cornstarch
  • A degreaser or commercial cleaner designed for specific stain types
  • A cleaning solution, such as detergent or vinegar mixed with water
  • A pressure washer or garden hose with a high-pressure nozzle
  • Protective gloves and goggles
  • A bucket and clean water
  • A stiff-bristled broom or brush

Having all the necessary materials on hand will streamline the cleaning process and ensure that you are well-prepared to tackle any type of stain.

Step 3: Clear the Area

Before you start cleaning, remove any objects or debris from the area surrounding the stain. This includes vehicles, tools, storage containers, and other items that could interfere with the cleaning process. Sweep the garage floor to remove any loose dirt or dust. By doing so, you will create a clean and unobstructed workspace.

Step 4: Apply Absorbent Material (for Oil and Grease Stains)

If you are dealing with oil or grease stains, start by applying an absorbent material such as kitty litter, sawdust, or cornstarch to the stained area. Let the material sit for at least 30 minutes to an hour, allowing it to absorb as much of the oil or grease as possible. Once the absorbent material has done its job, sweep it up and dispose of it properly.

Step 5: Pre-treat the Stain

Depending on the type of stain, you may need to pre-treat the area before proceeding with a more thorough cleaning. For example, for paint stains, use a paint thinner or remover according to the manufacturer’s instructions, and for rust stains, consider using a rust remover product. Always follow the product guidelines and wear appropriate protective gear to ensure your safety.

Step 6: Apply a Cleaning Solution

Prepare a cleaning solution appropriate for the type of stain you are dealing with. For general cleaning, a mixture of detergent and water or vinegar and water should suffice. For more stubborn stains, consider using a commercial cleaner or degreaser specifically designed for the type of stain you are addressing. Apply the cleaning solution to the stained area and allow it to sit for a few minutes to help break down the stain.

Step 7: Scrub the Stain

Using a stiff-bristled broom or brush, scrub the stained area vigorously. Apply firm pressure and use a circular motion to break up the stain and lift it from the garage floor. Depending on the type and severity of the stain, you may need to scrub for several minutes to achieve the desired results.

Step 8: Rinse the Area

After scrubbing the stain, rinse the area thoroughly with a garden hose or pressure washer. If using a pressure washer, be sure to use a low-pressure setting to avoid damaging the garage floor. Ensure that all traces of the cleaning solution and loosened stain are washed away, leaving the area clean and free of residue.

Step 9: Inspect and Repeat (if Necessary)

Inspect the stained area to determine if further treatment is needed. If the stain has been successfully removed, move on to the next step. However, if the stain persists, repeat the cleaning process (steps 6 through 8) until the desired results are achieved. Some stubborn stains may require multiple rounds of treatment to be fully removed. Be patient and persistent, as it may take time and effort to eliminate the stain completely.

Step 10: Dry the Floor

Once the stain has been successfully removed, allow the garage floor to air dry. You can speed up the drying process by using a squeegee to remove excess water or by setting up fans to circulate air around the area. Ensure that the floor is completely dry before returning any vehicles, tools, or other items to the garage. This will help prevent any new stains from forming and keep your garage floor looking clean and well-maintained.

Step 11: Apply a Protective Sealer (Optional)

To help protect your garage floor from future stains and make cleaning easier, consider applying a protective sealer. There are various types of sealers available, including epoxy coatings and penetrating sealers. Research the best option for your garage floor and follow the manufacturer’s instructions for proper application. A protective sealer can extend the life of your garage floor and make it more resistant to stains and damage.

Step 12: Maintain Cleanliness

Regular maintenance is key to keeping your garage floor stain-free and in good condition. Sweep or vacuum the floor regularly to remove dirt, dust, and debris that could cause stains or damage. Immediately address any spills or stains that occur to prevent them from setting in and becoming difficult to remove. By staying proactive and diligent about maintaining your garage floor, you can keep it looking clean and pristine for years to come.

Sweep or Vacuum Regularly

Tips for How to Remove Garage Floor Stains

  1. Always wear protective clothing when working with chemicals. This includes gloves, goggles, and a face mask. Work in a well-ventilated area to avoid inhaling dangerous fumes.
  2. Never mix different chemicals together. This can create dangerous reactions. Dispose of all chemical products and containers according to local regulations.
  3. Be sure to read the manufacturer’s instructions carefully before using any product. Never use a power washer to clean a garage floor, as this can damage the surface.
  4. Always test a small area of the floor before treating the entire surface. Use an acid-based cleaner for oil or grease stains.
  5. Use a detergent or soap to remove dirt and grime. Use a bleach solution to remove mildew or mold stains.
  6. Rinse the area thoroughly with clean water after cleaning. Allow the floor to dry completely before walking on it or applying a sealer.
  7. If using a sealer, apply it according to the manufacturer’s instructions. Do not park cars on the floor until the sealer has had time to dry completely.
  8. Regularly sweep and mop the floor to keep it clean and debris-free.

How Can You Prevent Garage Floor Stains From Happening in the First Place?

The best way to deal with garage floor stains is to prevent them from happening in the first place. Here are some ways:

  • Keep your garage clean and free of debris. This will help reduce the chances of stains forming in the first place.
  • Sweep or vacuum your garage floor regularly. This will help pick up any dirt or debris that could potentially cause stains.
  • If you spill something on your garage floor, clean it up immediately. The longer a substance sits on the floor, the more likely it is to cause a stain.
  • Consider applying a sealer to your garage floor. This will create a barrier that can help prevent stains from penetrating the floor’s surface.

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Is It Necessary to Call Any Professional to Remove Garage Floor Stains?

No, it’s unnecessary to call any professional to remove garage floor stains. You can clean your garage floor stains on your own in several ways. One way is to use a pressure washer. You can rent or purchase a pressure washer from most hardware stores. Another way is to use a stiff brush and some soapy water. 

Use a Stiff Brush and Some Soapy Water

You can also use a chemical cleaner, such as trisodium phosphate (TSP). TSP is available at most hardware stores. Be sure to follow the instructions on the package. If you have oil stains on your garage floor, you can try using kitty litter or sawdust to absorb the oil. Let it sit for a few hours, then sweep it up and dispose of it. You can also try using a degreaser to remove oil stains. 

Be sure to test the degreaser on a small floor area first to ensure it doesn’t damage the finish. If you have rust stains on your garage floor, you can try using a wire brush to remove them. You can also try using a chemical rust remover. Be sure to follow the instructions on the package and test the product on a small area of the floor first.

How Much Will It Cost to Remove Garage Floor Stains by Hiring a Professional?

The cost will be minimal if you plan to remove garage floor stains yourself. You will only need to purchase some basic cleaning supplies and rent a power washer if you do not already have one. If you decide to hire a professional to remove the stains, the cost will be higher.

Remove Garage Floor Stains Yourself

The average cost to remove garage floor stains is between $100 and $300. The price will depend on the size of your garage and the number of stains that need to be removed. If you have a large garage with multiple stains, the cost will be on the higher end.

There are a few things that you can do to reduce the cost of removing garage floor stains. First, try removing as many stains as possible before calling in a professional. Second, if you have a power washer, use it to remove most of the stains and hire a professional to finish the job. This will save you money because the professional will not have to rent a power washer.


If you have been struggling to remove stains from your garage floor, we hope this guide has been helpful. Remember, the key to successful removal is to act quickly and use the right products and tools. 

If you are not comfortable tackling the job yourself, hire a professional to get the job done safely and efficiently. I hope this article has been beneficial in learning how to remove garage floor stains. Make the necessary preparations and take steps to rid your floor of unwanted blemishes.

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Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

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