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How to Fix Uneven Garage Floor: The Ultimate Guide.

Fixing an uneven garage floor involves using concrete resurfacing or leveling products. This will help to create a smooth and level surface for your garage.

Uneven garage floors can be dangerous, especially if you use your garage to store vehicles or equipment. They can also be unsightly and make it difficult to use the space effectively. Luckily, there are several solutions available to fix an uneven garage floor.

In this article, we will explore some of these solutions in detail, including how to identify the cause of the unevenness and the tools and products you will need to complete the project to satisfaction. Whether you are a diy enthusiast or plan to hire a professional, this guide will provide you with all the information you need to fix your uneven garage floor.

How to Fix Uneven Garage Floor: The Ultimate Guide.


Table of Contents

Causes Of Uneven Garage Floor

Uneven garage floors can be a major problem for homeowners, causing a range of issues from difficulty with opening and closing doors to dangerous tripping hazards. In this section, we will discuss the various causes of an uneven garage floor.

Water Erosion: Causes And Effects

Water erosion is one of the more common causes of an uneven garage floor, resulting in significant damage to the concrete over time. The following are some of the key points to remember:

  • Rainwater, snow melt, or flooding can seep into even the smallest cracks in your garage floor.
  • The water can erode the concrete, leading to unevenness over time, sinking, and cracks.
  • As weakness in the surface increases, it becomes even more vulnerable to weather events.

Foundation Issues: Causes And Effects

Foundation issues are another common cause of uneven garage floors. The following are some of the key points to remember:

  • Foundation shifts or settling can cause an uneven and unstable garage floor.
  • Expansive soils can put pressure on the foundation resulting in cracks and unevenness.
  • Inadequate soil compaction can make it difficult to keep the foundation level.

Poor Construction: Causes And Effects

Poor construction is a common cause of uneven garage floors, particularly in older homes. The following are some of the key points to remember:

  • Poor quality concrete mix, incorrectly installed reinforcement steel, and incorrect curing times can lead to an uneven garage floor.
  • Shoddy workmanship or using sub-standard equipment can cause considerable damage over time.
  • Insufficient preparation prior to pouring the concrete is a common cause of unevenness.

Aging: Causes And Effects

Over time, garage floors can become uneven due to a range of factors. The following are some of the key points to remember:

  • Aging concrete will naturally develop wear and cracks, becoming more uneven over time.
  • Changes in the soil or drainage of the area can cause the garage floor to shift.
  • Where there is regular traffic or heavy objects that are stored, such as cars and equipment, the surface will often become more uneven over time.

Sign And Symptoms Of An Uneven Floor

Finally, it’s important to be aware of the signs and symptoms of an uneven garage floor, so you can take action in time. Here is what to look for:

  • Cracks or fissures in the concrete
  • Areas of the surface that have become sunken or raised
  • Difficulty opening and closing doors due to the unevenness of the floor
  • Trip hazards or other safety issues that could cause injury.

There are various reasons why your garage floor could be uneven. Identifying the factors that have caused the issue is the first step in taking steps to fix it. By knowing the signs and symptoms of an uneven garage floor, you can make necessary repairs before the problem worsens.

Measuring The Uneven Garage Floor

Measuring Slopes And Dips

Measuring your sloping or uneven garage floor is a vital step in fixing the issue. To do that, you need to use a slope meter. Here’s how to do it:

  • Take two pieces of 2 x 4 wood that are at least 8 inches longer than the width of your garage’s front.
  • Place the first 2 x 4 piece on one side of the garage, and the other 2 x 4 piece on the other side.
  • Place the slope meter on top of the first 2 x 4, then adjust it until you get a reading.
  • Make sure that you place the slope meter’s zero reading at the same height on both ends of the 2 x 4.
  • Move to the other side of the garage and place the slope meter on top of the other 2 x 4. Then, adjust it until you get a reading.
  • Write down the measurements for both sides of the garage to have an accurate reading.

Tools Required For The Job

Aside from a slope meter, you’ll also need some tools to fix the uneven garage floor effectively. Here are some of the things you will require:

  • Measuring tape
  • Concrete grinder/scarifier
  • Duct tape
  • Steel trowel
  • Concrete crack filler
  • Concrete resurfacer
  • Self-leveling compound

How To Read The Slope Meter And Take Notes

To read a slope meter, keep the following tips in mind:

  • Line up the slope meter’s base with the garage floor’s surface where you want to take a reading.
  • Adjust the meter until you see the bubble in the center of the gauge.
  • To take down the measurements, write out the degree of the slope/dip in the direction of the garage door.

Once you have your readings, you can move on to the next step, which is taking notes. To take extensive notes, keep track of the:

  • Position: Note down the exact location where you took the reading.
  • Direction: Note the direction towards which the slope is going. Is it towards the left or the right?
  • Measurement: The measurement reading, whether in degrees or inches and how steep it is.

By taking thorough notes, you’ll have a better idea of the areas that require attention while fixing the uneven garage floor.

Fixing Uneven Garage Floor: Diy Approaches And Professional Help

Garage floors are susceptible to wear and tear, and over time, they could become uneven, creating problems for car owners. Uneven garage floors not only dampen the appeal of your garage but also pose a threat to the safety of your car and yourself.

If you’re dealing with such an issue, read on to learn about diy approaches and professional help for fixing an uneven garage floor.

Simple Diy Approaches And Safety Measures

If you’re the kind of person who likes to take things into their own hands, these simple diy approaches will help you fix the uneven garage floor in no time.

  • Self-leveling concrete: Self-leveling concrete is easy to work with and ideal for correcting minor floor leveling issues. Start by cleaning the garage floor and then pouring the self-leveling concrete compound onto the floor. Spread it with a trowel to achieve a smoother and even finish. The area should be left to dry for 24 hours.
  • Epoxy coating: Epoxy coating is a flooring solution with the power to solve uneven floors. It’s moisture-resistant, durable, and easy to clean. Before applying an epoxy coating, clean the garage floor’s surface and patch any holes or cracks. Apply the epoxy coating in two or three layers, allowing each layer to dry before applying the next one. Don’t forget to follow the manufacturer’s instructions.
  • Floor grinding: Floor grinding is another diy approach that can help level an uneven garage floor. Start by renting a grinder from your local rental store. After putting on safety gear, grind the high spots in the garage floor and vacuum up the dust afterward.

Professional Help: When And Why

An uneven garage floor can be quite a problem. If you’re unsure that you can fix it yourself or don’t have the time to diy, hiring a professional is an excellent option.

  • Experience and expertise: Professional flooring contractors have years of experience dealing with uneven garage floors. They understand the required precision and techniques, and you can trust them to do a better job.
  • Equipment and tools: Professional flooring contractors come equipped with the proper tools and equipment required for the job. They use industrial-strength materials to ensure that the floor remains level for years to come.
  • Save time and money: Hiring a professional can save you time and money in the long run. Attempting the job yourself could lead to costly mistakes, resulting in additional expenses. Professionals provide an in-depth analysis of your garage floor and ensure that the job is completed in a timely manner.

Cost-Effective Diy Solutions

Diy approaches are affordable, and the cost of materials is less than that of hiring a professional.

  • Self-leveling concrete: A 50-lb bag of self-leveling concrete costs between $20-$30. It’s a simple and affordable option.
  • Epoxy coating: Epoxy coating can be a cost-effective solution depending on the size of your garage. An epoxy coating typically runs between $2-$10 per square foot.
  • Floor grinding: Renting a floor grinder can cost anywhere between $50-$150 per day, depending on the size and type of the grinder.

The Pros And Cons Of Diy Over Professional Help

Before you decide whether to undertake the diy approach or hire a professional, it’s worth considering the pros and cons.

**diy pros:**

  • Affordable
  • An opportunity to learn something new
  • Flexibility in design.

**diy cons:**

  • Time-consuming
  • Lack of expertise
  • Potential for costly mistakes

**professional pros:**

  • High-quality work
  • Time-efficient
  • Possess the necessary expertise and equipment

**professional cons:**

  • Expensive
  • Limited creativity
  • Scheduling may be an issue

Fixing an uneven garage floor is something you can do yourself or hire a professional for. While diy approaches are cost-effective and straightforward, hiring a professional promises a quicker, better job. Whatever approach you decide to take, make sure to consider the pros and cons and prioritize your safety while working on your garage floor.

Levelling The Uneven Floor: Steps To Follow

If your garage floor is uneven and you want to fix it, then you’re in the right place. Here, we’ll guide you through the process of levelling the uneven garage floor. Let’s get started!

Removing The Old Flooring

Before starting the leveling process, you must remove the old flooring from the garage floor. Here’s what you should do:

  • Remove the baseboards if you have any.
  • Take out the tiles or carpeting using a scraper or any other tool.
  • Clean the surface thoroughly using a broom or vacuum cleaner.

Preparing The Surface For Leveling Material

After removing the old flooring, the next step is to prepare the surface for the leveling material. Here’s what you need to do:

  • Inspect the surface for cracks or holes. If there are any, then you must fill them with concrete or patching compound.
  • If there’s an oil stain or any other stubborn stain on the surface, then you can clean it using a degreaser.
  • Sand the surface slightly to provide a better grip to the leveling material.

Choosing The Right Compound

Choosing the right compound is crucial in leveling your garage floor. Here are some tips to help you choose the perfect compound:

  • For small dips or uneven areas, you can use self-leveling compound or concrete patching compound.
  • For the larger dips or uneven areas, you can use a concrete mix or a floor resurfacer. Make sure to check the manufacturer’s instructions before purchasing.

Mixing And Applying The Compound

Now that you have chosen the right compound, it’s time to mix it and apply it. Here’s what you should do:

  • Follow the manufacturer’s instructions for mixing the compound.
  • Pour the mixture on the garage floor and spread it evenly using a trowel.
  • Move quickly to distribute the mixture before it dries out, otherwise it will leave lumps and bumps in the surface.

Smoothing Out The Surface

After applying the compound, it’s time to smooth out the surface. Here’s what you should do:

  • Use a long-handled squeegee to level the compound in large areas.
  • Follow up with a cement float to even out any remaining bumps.
  • Let the surface dry for at least 24 hours before placing any heavy objects on it.

That’s it! Now you know how to level an uneven garage floor. With these easy-to-follow steps and the right tools, you can fix your uneven garage floor in no time.

After Care And Maintenance

Proper Cleaning And Maintenance Of Leveled Floor

Keeping your garage floor clean and maintained is crucial for the longevity and appearance of your floor. It’s especially important if you’ve gone through the trouble of leveling your floor. Here are a few tips to keep in mind when caring for your leveled garage floor:

  • Sweep the floor regularly with a soft-bristled broom or dust mop to prevent the buildup of debris and dirt.
  • Use a wet mop to clean the floor using a mild detergent and water. Avoid using abrasive cleaners that can scratch or damage the floor.
  • If you have any spills, clean them up as soon as possible to prevent staining.
  • Use a floor wax or sealant to protect your floor from damage and make cleaning easier.

Importance Of Immediate Action On Cracks And Slopes

Cracks and slopes can cause major damage to your leveled garage floor if they’re not quickly addressed. Here are a few reasons why immediate action is crucial:

  • Cracks can allow moisture to seep beneath the floor, leading to mold growth, water damage, and structural issues.
  • Slopes can cause damage to the integrity of your floor’s structure and can lead to safety hazards.
  • Small cracks and slopes can be easily fixed, but if left untreated, they can turn into more significant issues that require costly repairs.

Identifying Common Cracks And Methods Of Fixing Them

Not all cracks are created equal, and each requires a different method of repair. Here are a few common types of cracks found in garage floors and how to fix them:

  • Hairline cracks: Usually, these minor cracks are harmless. If they bother you, fill them with a concrete sealer or epoxy.
  • Spiderweb cracks: These small, interconnected cracks are typically caused by surface shrinkage. You can fix them with a concrete sealer or epoxy.
  • Structural cracks: These larger cracks indicate a problem with the underlying structure of your garage floor and need professional attention.

Do’S And Don’Ts Of Garage Activities That Affect The Floor

Your garage floor is designed to withstand a lot of wear and tear, but there are certain things that you should avoid to prevent damage. Here are a few do’s and don’ts to keep in mind:

  • Do park your car properly to prevent tire marks and oil stains.
  • Don’t use metal shovels or sharp objects on your floor, as they can scratch or damage the surface.
  • Do use floor mats or rugs in high-traffic areas to prevent wear and tear.
  • Don’t store heavy items or equipment in one spot for an extended period, as this can cause cracks and slopes to form.

By following these tips for after-care and maintenance, you’ll be able to keep your leveled garage floor in top condition. Remember, proper upkeep is essential for protecting your investment and extending the lifespan of your floor.

Frequently Asked Questions For How To Fix Uneven Garage Floor

How Do You Determine If Your Garage Floor Is Uneven?

Use a long straightedge or level to check for dips or bumps in your garage floor.

What Causes Uneven Garage Floors?

Uneven garage floors can be caused by settling, weather changes, or poor installation.

Why Is It Important To Fix An Uneven Garage Floor?

An uneven garage floor can cause damage to vehicles, create tripping hazards, and affect resale value.

Can You Fix An Uneven Garage Floor Yourself?

It is possible to fix an uneven garage floor yourself with self-leveling concrete or by hiring a professional.

How Much Does It Cost To Fix An Uneven Garage Floor?

The cost to fix an uneven garage floor can vary depending on the extent of the damage and the method used, but ranges from $2-$10 per square foot.

How Long Does It Take To Fix An Uneven Garage Floor?

The time it takes to fix an uneven garage floor depends on the extent of the damage and the method used, but can take anywhere from a few days to a week.


By following the steps outlined in this article, fixing an uneven garage floor can be a manageable task. Remember to assess the severity of the problem before deciding on a solution, as well as taking time to properly prepare the surface before beginning any repairs.

Whether using self-leveling compounds, concrete resurfacers, or installing an overlay, it’s important to carefully follow manufacturer instructions and allow ample time for curing. Although the process may require some time and effort, a level garage floor can improve the safety and functionality of your space, as well as the value of your home.

Don’t wait to tackle your uneven garage floor – get started today and enjoy a more even and functional surface for all your home projects.