How to Clean up Old Cement Garage Floor? Expert Tips 2024

Is your old cement garage floor looking worse for wear? Years of grime and dirt buildup can turn it into an unsightly mess. But fear not! With the right tools and techniques, you can transform your garage floor from dull and dirty to fresh and clean. In this post, how to clean up old cement garage floor? to clean up old cement garage floor? and restoring their former glory. It’s time to bid farewell to those stubborn stains and embrace the satisfaction of a pristine garage.

How to Clean up Old Cement Garage Floor

How to Clean up Old Cement Garage Floor?

Tools and Materials

Before diving into the cleaning process for your old cement garage floor, it’s essential to gather the right tools and materials. Here’s a comprehensive list to ensure you’re well-equipped for the task:


  1. Broom and Dustpan: For sweeping away loose dirt and debris.
  2. Wet/Dry Vacuum or Shop Vac: To remove finer dust particles.
  3. Degreaser: Choose a suitable garage floor degreaser for effective stain removal.
  4. Stiff-Bristled Brush: This will be your trusty tool for scrubbing stubborn stains.
  5. Hose or Power Washer: For rinsing off the cleaning agents and debris.
  6. Concrete Sealer or Epoxy Paint: To protect and beautify your garage floor.


  • When selecting a degreaser, look for a product that is safe for use on cement surfaces and effective at removing oil and grease stains.
  • Invest in a quality stiff-bristled garage floor brush with a long handle to save your back and make scrubbing more manageable.
  • Consider using a power washer if you have access to one, as it can significantly ease the cleaning process.

Preparing the Garage

Preparation is key to a successful garage floor cleaning. Here’s what you need to do:

  1. Clear the Space: Start by removing any clutter, tools, or vehicles from your garage. This ensures you have a clean, open workspace to maneuver while cleaning.
  2. Sweep Thoroughly: Use a broom and dustpan to sweep away loose dirt, dust, and debris. This step prevents the broom from pushing more dirt around during cleaning.
  3. Ventilation: Ensure good ventilation by opening windows or doors. Adequate airflow will help dissipate fumes from cleaning agents and accelerate the drying process.

Removing Stains and Dirt

Removing those stubborn stains and dirt from your old cement garage floor is crucial. Here are various methods and some tips for tackling specific types of stains:

  1. General Cleaning: For regular cleaning, you can use a mixture of dish soap, 1 cup white vinegar, and 1 gallon of warm water in a bucket. This concoction is effective for removing general dirt and grime.
  2. Tough Stains: To combat tougher stains and oil spots, try a solution of 1 part all-purpose cleaner, 2 parts warm water, and 4 parts ammonia. This mixture can break down stubborn stains effectively.
  3. For Grease Stains: For those unsightly grease stains, mix 1/3 cup of Tide laundry detergent with 1 gallon of warm water. This solution works wonders on greasy spots.

Cleaning Cement Floor Procedures

Now that you’ve got your tools and the right cleaning solutions, it’s time to get down to cleaning garage floor. Here’s how to perform different cleaning techniques:

Pressure Washing:

  1. Connect your power washer to a water source and ensure it’s set to an appropriate pressure level.
  2. Starting from one corner of the garage, work your way across the floor, maintaining a consistent distance from the surface.
  3. Use broad, overlapping strokes to ensure even cleaning.
  4. Pay extra attention to stained or heavily soiled areas.


  1. Dip your stiff-bristled brush into your chosen cleaning solution.
  2. Scrub the garage floor in a circular motion, paying extra attention to stains.
  3. Rinse your brush frequently to prevent spreading dirt around.
  4. Continue until the entire floor is scrubbed.

Chemical Cleaners:

  1. Apply your selected cleaning solution to the garage floor.
  2. Allow it to sit for a few minutes to break down stains.
  3. Use a brush or a scrubbing tool to work on any stubborn spots.
  4. Rinse the floor thoroughly with a hose or power washer to remove the cleaning agent and debris.

By following these techniques, you’ll be well on your way to a cleaner, more attractive garage floor.

Maintenance Tips for Concrete Garage Floor

Maintaining a clean and well-maintained garage floor doesn’t end with the initial cleaning and sealing. Here are some long-term maintenance tips to keep it looking its best:

  1. Regular Cleaning: Sweep or use a blower to remove dust and debris regularly.
  2. Periodic Washing: Occasionally wash your garage floor with a hose or pressure washer to remove built-up grime.
  3. Stain Removal: Address any spills or stains promptly to prevent them from becoming permanent.
  4. Sealer Reapplication: Depending on the type of sealer used, reapply it every 1-2 years to maintain its protective qualities.
  5. Inspection: Periodically inspect your garage floor for any signs of damage, and address issues promptly to avoid costly repairs.

Repairing Cracks and Damage

Garage floors often bear the brunt of heavy vehicles and constant use, resulting in cracks and damage over time. Identifying and addressing these issues is essential for preserving the integrity of your garage floor. Here’s how to go about it:

Identifying Cracks and Damage:

  1. Visual Inspection: Begin by examining your garage floor closely. Look for cracks, spalling (chipping or pitting), or any other visible damage.
  2. Moisture Test: Perform a moisture test by taping a plastic sheet to a section of the floor. If you notice condensation under the plastic after a day or two, you may have a moisture issue.
  3. Listening: Sometimes, tapping on the floor with a mallet can help identify hollow or loose-sounding areas, indicating damage beneath the surface.

Addressing Cracks and Damage:

  1. Small Cracks: For minor cracks, you can use a concrete patching compound. Follow the manufacturer’s instructions for the best results.
  2. Large Cracks: Larger cracks may require epoxy filler or cement-based patching material. Clean the crack thoroughly, apply the filler, and smooth it with a trowel.
  3. Spalling: For areas with spalling, you might need to resurface the entire floor with a thin layer of concrete overlay.

Suggest Suitable Repair Materials and Methods:

  • Concrete Patching Compound: Use this for small, shallow cracks and minor imperfections.
  • Epoxy Filler: Suitable for filling deep cracks and holes in the concrete.
  • Cement-Based Patching Material: Ideal for repairing larger areas of damage.
  • Concrete Overlay: For resurfacing the entire garage floor.

By addressing cracks and damage promptly, you not only extend the life of your garage floor but also prevent more significant issues from arising.

FAQs on How to Clean up Old Cement Garage Floor

How do You Remove Ingrained Dirt from Concrete?

To effectively remove ingrained dirt from concrete, you’ll need the right tools and cleaning products.

Start by wetting the area with a garden hose and use a sturdy brush with stiff bristles along with a warm water and detergent cleaning solution to scrub the dirt away.

In cases of stubborn dirt, a pressure washer can be employed to aid in loosening it. For persistent stains, consider using a concrete cleaner designed to penetrate deep into the concrete and dissolve the dirt. Rinse the area with clean water and allow it to dry for a refreshed appearance.

What do Professionals Clean Concrete With?

Professionals have various techniques in their arsenal. For light cleaning, they use mild dish detergent and warm water. For stubborn stains, a pressure washer, trisodium phosphate and water mixture, or a commercial degreaser might be necessary. In extreme cases, professional concrete cleaners containing acids are used as per the manufacturer’s instructions.

How Do You Make Old Concrete Floors Look New?

To rejuvenate aging concrete floors and give them a fresh appearance, several methods can be employed. The initial step is to address any cracks and joint damage on the floor. Afterward, staining, polishing, the application of urethane, and specialty coatings like epoxy can be utilized to achieve a revitalized look.

What Is the Best Solution to Clean Concrete Garage Floors?

A highly effective garage floor cleaning solution involves the use of natural acids such as lemon juice or vinegar.

These gentle acids are particularly suitable for stain removal, especially for common garage stains like rust caused by metal objects. To tackle such stains, simply pour lemon juice or vinegar over the affected areas and follow it up with scrubbing.

How Do You Clean a Filthy Concrete Floor?

Cleaning a filthy concrete floor can be accomplished using various cleaning solutions. Options include Castile soap, liquid dish detergent, stone cleaners, and mild floor cleaners. Create a solution with one of these products, apply it to the floor with a wet mop, and subsequently rinse using a mop dampened with clean water.


Cleaning up an old cement garage floor can be a tedious task, but with the proper supplies and maintenance, you can make your garage floor look like new. Start by sweeping away any dirt and debris, then use a stiff brush to scrub away any oil and grease spots. 

Use a pressure washer to remove any remaining grime and then apply a sealant to protect your floor from future damage. With a little bit of elbow grease and the right cleaning supplies, your cement garage floor will look like new in no time.

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