How to Clean Garage Floors (4 Quick Steps)

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Categories Hard Floors
Garage doesn’t have to equal grimy.

Is it about time you cleaned out the garage? Maybe you’d started moving things around when you noticed a few stains on the concrete floor?

Concrete flooring isn’t as durable or stain-resistant as many think. Things like water and oil can quickly penetrate the surface and leave permanent marks. So what can you do about it? Follow the guide below to see how to clean garage floors.


There are a few steps to take to make sure you give your garage a thorough clean. It might take a whole day or two, but once it’s done, cleaning next time will be much easier.

Prepare the Garage

Before you can start cleaning the floors, you’ll have to do the dreaded task of tidying. This is our three-step formula to conquer the quest:

1. Clear the Garage

It’s difficult to clean if you’re maneuvering around large objects. So start by removing large items such as bikes, tools, cars, boxes, basins and other things in the way.

You may leave behind items on shelves if they won’t be in the way of water sprays, soap, or hoses.

2. Protect Outlets and Drywall

Drywall is especially prone to water damage if left exposed. It can become soft and weak and, therefore, lose its structure. When this happens, mold will quickly start to grow, which could become a health risk in your home (1).

To prevent this, cover at least 3 feet of the drywall — measuring from the floor — with a tarp or other material. This should also protect any outlets that might be present in the garage.

3. Remove Dust and Debris

Sweep the floors and remove any dust, dirt and debris that might be present. This will make the job much cleaner once you apply water and detergent.

How to Remove Stains

When the garage is clear, and you’ve cleaned the floor with a broom, it’s time to focus on stains. We love these five stain removal methods:

Method #1: Natural Acid

Lemon juice and vinegar are two acidic products that work effectively at removing stains. Rust is a common stain found in the garage due to metal objects such as bikes and tools. So if you have metal lockers or standing cabinets, you might find one or two rust stains when you move them.

Although rust can be frustrating to discover, it’s relatively easy to remove. Pour pure white vinegar or lemon juice straight onto the stain.

Allow it to sit for about five minutes before applying some elbow grease. Use a stiff brush to scrub and scour the stain away.

If this wasn’t successful and you still see the rust, you can repeat the process or use a commercial product.

You can also use muriatic acid if the stain is very persistent. This is a very acidic chemical, also known as hydrochloric acid — it’s highly corrosive, so it should be handled with care. Mix one part muriatic acid in 10 parts water.

Precaution

If muriatic acid is exposed to the skin, it will cause burns. The strong fumes can also burn the nose and lung lining (2). So always wear protective gear such as gloves, goggles and a mask.

Method #2: Use a Detergent

Good old powdered detergent can do wonders to various stains you might find in your garage. Get out a bucket of warm water and a box of detergent. Apply the detergent on the stain generously until covered.

Take a stiff brush and dip it in the warm water — then scrub the stain. You’ll have to apply some pressure while scrubbing. Wipe away as much detergent as you can when done and allow it to dry.

Method #3: Kitty Litter

If you’re a cat owner who often discovers oil stains in the garage, you might just find another use for cat litter. Kitty litter is highly absorbent and can help to remove oil stains without the need for chemicals.

For this method to work, however, you’ll need clay-based litter. Spread a generous amount to cover the stain and leave it overnight. Then, the following day, sweep the litter away and check on the stain.

There might still be traces of the stain left the next day. If so, replace the soiled litter with a new pile and leave it overnight again. It might take a few days, but cat litter is effective at removing new spills and old stains.

Method #4: Commercial Product

When everything else fails, there’s always the option of a commercial product. There are many grease and oil removers available. They effectively remove grease, oil, brake fluid and more from concrete.

Always follow the directions provided by the manufacturer to make sure you’re using the product correctly. Some products require a long working time of a few hours, while others only require scrubbing and rinsing straight away. However, the most effective grease and oil removers are left until dry and then removed.

Method #5: Removing Sealer and Old Paint

If you’re planning on coating your concrete floor with epoxy, you must remove sealers and old paint.

You can use a chemical stripper to remove sealers and paint. Use your chosen chemical as directed by the manufacturer.

If you like, you can also use a solvent to remove the spots. These are quick but can have strong fumes so you should keep the garage door open.

A floor grinder is also effective at removing sealers and old paint. You can rent one from your local hardware store. Use a special grind head that will remove paint, mastic, and sealer.

The floor grinder will create a lot of dust, so wear a mask and goggles to stay protected. This method requires a lot less elbow grease compared to using chemicals. However, if you’re not confident using a grinder, start in a small area until you get used to the machine.

Deep Cleaning the Garage Floor

After treating spots and stains, it’s time to draw your attention to the entire floor. For this, you’ll need the following tools:

  • Detergent.
  • Warm water.
  • Push broom or regular broom with stiff bristles.
  • Power washer.
  • A buffer.

1. Make Your Solution

To make your cleaning solution, you can use any product of your choice. If you have a lot of oil spills, a degreasing product is good. You can also use regular laundry detergent if the floor is soiled.

Follow the directions provided by the degreasing product and mix a suitable amount with the warm water. If you choose to use detergent, here’s how to mix it:

Fill a bucket with a gallon of warm water. Warm water will help to dissolve dirt and grease; it’s more effective than cold. Add one-third of a cup of detergent and give it a good mix to make sure the detergent is fully dissolved.

2. Use a Broom

Apply the solution to the entire floor — you might need more than 1 gallon to cover the area. Allow the solution to sit for about 10 minutes — the cleaner will absorb and dissolve oil, dirt and grime. Then take your push broom or regular broom and scrub the entire floor.

Start at the farthest part of the room and work your way towards the exit. As you scrub, push the water and soap out the garage door. This will help the concrete to dry once you’re done.

When you’re finished, use a garden hose to rinse the area and then allow it to dry. If you have a floor squeegee, use it to direct the water out of the garage. This will eliminate standing water and help the floor dry quicker.

3. Rinse With Power Washer

If your garage floor is especially grimy, a power washer could help to remove stubborn dirt. If you don’t have one at home, you can rent it at your local hardware store.

Apply the cleaning solution to cover the floor and allow it to sit for 15 minutes. Use the power washer to spray the entire floor. Move the nozzle using broad strokes as you go along the floor.

Start at the back of the garage and work your way out. Allow the water to drain out of the open garage door.

4. Finish With a Buffer

A buffer is highly effective at restoring concrete floors. It’s a machine with a powerful scrubber — nylon is best for concrete. You can rent a buffer from your local hardware store.

Start by pouring the cleaning solution on the floor. Turn the buffer on and carefully guide it in sections to cover the floor. Again, start at the farthest part of the garage to avoid walking on the newly cleaned areas.

If this is your first time using a buffer, you might be slightly surprised at its power. However, start with small sections to get used to it. Then, once you’re confident, do larger sections. Finally, allow the floor to dry afterwards.

What Are Epoxy Floors?

Epoxy floors are quite common in garages due to the durable surface. It’s a “system” composed of a combination of hardeners and resins. When these are mixed, a chemical reaction occurs that forms a durable plastic material (3).

Due to the tough exterior, epoxy floors are often used in industrial environments, sports facilities and hospitals. The plastic material sticks very easily to any base surface such as concrete.

There are many types of epoxy flooring systems, such as:

  • Epoxy mortar floors: This is the strongest epoxy available. It’s commonly used in commercial kitchens, service areas with heavy equipment and manufacturing plants.
  • Epoxy flake floors: These are made with colored chips or flakes to create vibrant surfaces. Flake floors are commonly used in showrooms, sports venues and laundromats.
  • Self-leveling epoxy floors: Self-leveling epoxy is applied to old or damaged concrete to make a seamless, smooth surface. This system is also available in various colors and patterns. It’s mainly used in commercial garages, warehouses and showrooms.
  • Anti-static epoxy floors: Electro-static charge is a significant danger in certain workplaces. However, the anti-static surface reduces static hazards by using a conductive material that grounds any electricity. It’s mainly used in healthcare, pharmaceutical and chemical facilities.

Cleaning epoxy floors isn’t difficult, and it usually doesn’t require any heavy-duty chemicals or scrubbers. You can generally plan your cleaning to sweep weekly and mop monthly to keep it clean.

How to Clean Epoxy Floors

1. Sweep Weekly

The easiest way to sweep epoxy floors is by using a dust mop. With this tool, you won’t have to do a lot of back and forth sweeping like a broom.

Attach the microfiber cloth to the floorhead and work in sections until you’ve covered the entire floor. Then collect the dust and debris in a dustpan and wash the microfiber cloth in the washer once you’re done.

2. Wash Monthly

If there’s high-traffic in your garage, you can mop the floor once a month. Otherwise, once every three or four months should suffice. Epoxy floors don’t stain or hold onto dirt like other types of floors, therefore, it’s not necessary to wash them as often.

The best way to wash epoxy floors is by using ammonia, water and a foam or sponge mop. Fill a bucket with 1 gallon of hot water and pour in half a cup of ammonia. Mix it well and dip the mop allowing it to soak slightly.

Start at the back of the garage and glide the mop in sections. Dip the mop when it begins to feel dry or when you notice streaks. When you’re done, you can let the floor dry by itself or wipe it using an old cloth or towel.

If you have a floor squeegee, wrap a towel around it and use it to dry the floor. This is much easier than having to bend down and wipe.

Avoid Soap-Based Cleaners

These can leave a soapy residue on epoxy floors. Stringy mops should also be avoided as they can leave streaks. Instead, use foam mops or microfiber pads.

3. Remove Residue

If stains occur or you notice residue caused by a car or other factors, you can use hot water to remove them. Pour hot water straight onto the stain or residue and wipe with a towel or cloth.

If it’s a larger area, you can use a garden hose to wet the area and wipe it with a microfiber mop.

4. Scrub Stains

Although stains are unlikely to settle on epoxy floors, it can still happen. If it does, you’ll need a sponge, hot water and a cleaning solution.

Protect Your Floors

Never use harsh chemicals or abrasive solutions on epoxy floors. It’s a durable surface, but certain chemicals can damage it.

For tough stains, you can use an all-purpose cleaner. Mix it as directed, and it should remove grease and soil efficiently.

Apply the solution to the stain and rub the area using a sponge. Rinse the area if required by the cleaner you’re using.

Removing Tire Stains from Epoxy

Tire marks are common in garages but can be frustrating to discover. The best way to remove the marks is by soaking them in a standard cleaning solution. Then use a stiff brush to scrub the area until the marks are gone.

If the marks don’t want to budge, you will need something stronger. There are commercial products available to handle these issues.

The best way to remove tire marks is by preventing them. Whenever you discover a mark, remove it immediately to avoid a buildup of stains. Tire stains can be absorbed by the epoxy if left for too long. It will then be more difficult to get rid of.

Things to Avoid on Epoxy Floors

Even though epoxy is a durable material, there are specific cleaners you should avoid by all means. These include:

  • Citrus: Lemons, oranges and grapefruits are often recommended when removing tough stains. However, they can dull the surface and eventually cause damage.
  • Vinegar: Due to the high acidity, vinegar is used to clean and disinfect various surfaces. But, acids will slowly de-gloss epoxy and other garage floor coatings (4).
  • Soap: Having to clean your garage floor twice due to a filmy residue can be frustrating. If you want to avoid this, use only soap-free cleaners. The film soap leaves behind can also cause the floor to become extremely slippery, which can be dangerous.

Clearing the Clutter

We often leave things in our garages and forget about them, causing clutter. So, having a clean garage can help to clear your mind. But after clearing the floor, you might discover all sorts of stains and spots. Luckily, these can be cleaned quickly using the right tools and cleaners.

They way you clean the garage floor depends on what you’re facing — tough stains require tough methods. Lighter stains and marks can be washed away using a power washer or floor buffer. Finally, consider coating your floors with epoxy to keep cleaning easy and the floor protected.

How often do you clean your garage? Leave a comment in the section below and tell us how you do it.

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About the Author

Amy Anthony

Amy is a stay-at-home-mom, seasoned writer, and a home cleaning and organization aficionado. Amy enjoys having an absolutely spotless home and has worked hard to develop strategies to keep it that way, despite having 2 kids and 3 dogs!
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