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How to Easily Repair Pitted Concrete + Prevention Tips


Garage floor resurfacing can be daunting for many, but the good news is that pitted concrete can be repaired quite easily.

Pitted concrete, while attractive in some cases, can be unsightly and difficult to clean. Fortunately, there are a few ways to repair pitted concrete surfaces without having to replace it entirely.

Concrete is a durable and versatile material commonly used in construction, known for its strength and longevity. However, over time, concrete surfaces can develop pits, which not only detract from their appearance but also pose potential hazards.

If you're faced with pitted concrete, fear not! In this article, we'll guide you through the process of repairing pitted concrete, restoring its original beauty and functionality. Let's roll up our sleeves and get to work!

What Causes Concrete to Pit?

Your entire floor or concrete driveway might not be pitted - it could just be a few isolated spots. So what causes this issue in the first place?

Before we delve into the repair process, let's take a moment to understand what causes concrete to pit. Pitting occurs due to various factors, including:

1. Freeze-thaw cycles: In regions with cold winters, moisture can seep into the concrete, freeze, and expand. This expansion exerts pressure on the surface, resulting in small pits.

concrete flooring

2. Chemical exposure: Harsh chemicals, such as acids or de-icing agents, can erode the concrete surface over time, leading to pitting. Polymer-modified cement, especially on garage floors, can also experience pitting if not applied correctly.

3. Age and wear: With age, concrete naturally deteriorates, and constant foot or vehicle traffic can exacerbate the problem, causing pitting. Loose concrete particles can also leave pits behind.

4. Improper installation: If concrete was not properly mixed, cured, or finished during installation, it is more prone to pitting and other forms of damage. Deeply spalled concrete is also more likely to develop pits.

Assessing the Damage

Before embarking on the repair process of broken concrete, it's essential to assess the extent of the damage. Take a close look at the pitted concrete surface and evaluate the size and depth of the pits.

This assessment will help you determine the appropriate repair method and materials needed. For minor pitting, surface-level repairs may suffice. However, deeper pits may require more extensive restoration techniques.

Polymer-modified cement patches are ideal for repairing pits on garage floors because they're easy to apply and provide a seamless finish. Deeply pitted or spalled concrete should be patched with a cementitious patching material, such as epoxy or polyurea.

Surface-Level Repairs: Filling in the Pits

For small pits and surface-level damage, you can employ simple repair techniques to restore the smoothness of your concrete surface. Here's how:


cleaning the concrete surface


Step 1: Clean the Surface

Begin by thoroughly cleaning the pitted concrete surface. Use a stiff-bristle brush, mild detergent, and water to remove dirt, debris, and loose particles. Rinse the area well and allow it to dry completely.


applying concrete patch


Step 2: Apply a Concrete Patch

Once the surface is clean and dry, it's time to apply a concrete patch. Choose a high-quality patching compound specifically designed for concrete repairs.

Follow the manufacturer's instructions to mix the compound to the desired consistency. Then, using a trowel, apply the patch to the pitted areas, ensuring the surface is smooth and level.


Step 3: Allow the Patch to Cure

After applying the patch, allow it to cure according to the manufacturer's recommendations. This typically involves a waiting period of several hours or even days. During this time, keep the repaired area protected from foot traffic and excessive moisture.

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Deep Repairs: Resurfacing the Concrete

If the pits in your concrete surface are larger and deeper, a surface-level patch may not suffice. In such cases, resurfacing the concrete is the preferred solution. Here's how to tackle deeper repairs:


Step 1: Prepare the Surface

Begin by preparing the pitted concrete surface for resurfacing. Thoroughly clean the area, removing any loose debris, dirt, or old patching material. A pressure washer can be especially helpful for this task. Once clean, allow the concrete floor surface to dry completely.


Step 2: Apply a Concrete Overlay

To resurface the concrete garage flooring, you'll need to apply a concrete overlay. This overlay is a thin layer of new concrete that will cover the pits and restore the smoothness of the surface. Here's how to proceed:


Step 2.1: Prime the Surface

Before applying the concrete overlay, it's important to prime the surface. This step ensures proper adhesion and enhances the longevity of the repair.

Choose a concrete primer suitable for resurfacing applications and follow the manufacturer's instructions to apply it evenly to the prepared surface.


Step 2.2: Mix and Apply the Overlay

Next, mix the concrete overlay material according to the manufacturer's guidelines. Ensure you achieve the desired consistency, similar to pancake batter.

Using a trowel or a squeegee, spread the overlay evenly across the pitted surface. Work in small sections to maintain control and avoid premature drying.


apply concrete overlay


Step 2.3: Smoothing and Finishing

Once the overlay is applied, use a trowel or a concrete float to smooth and level the surface. Work methodically, starting from one end and moving towards the other.

Pay attention to the edges, ensuring a seamless transition between the resurfaced area and the existing concrete. Continue this process until the entire surface is smooth and even.


Step 2.4: Curing and Sealing

After resurfacing concrete floors, it's crucial to allow the overlay to cure properly. Follow the manufacturer's recommendations for the curing time, which may range from a few hours to several days. During this period, protect the repaired area from foot traffic and excess moisture.

Once the overlay is fully cured, consider applying a concrete sealer to enhance its durability and resistance to future damage. The surrounding concrete should also be sealed to prevent moisture and contaminants from penetrating the repair.

floor contractors

Frequently Asked Questions


Q: Can I repair pitted concrete myself, or should I hire a professional?

A: Repairing pitted concrete can be a DIY project if the damage is minor. However, for extensive repairs or if you lack experience, it's advisable to seek professional assistance.


concrete work protective gears


Q: What safety precautions should I take during the repair process?

A: Always wear protective gear, such as gloves and safety goggles, when working with concrete repair materials. Additionally, ensure proper ventilation in the area to avoid inhaling potentially harmful fumes.


Q: How long will the repaired concrete last?

A: The lifespan of repaired concrete depends on various factors, including the quality of the repair materials, the extent of the damage, and proper maintenance. With appropriate care, a well-executed repair can last for many years.


Q: Can I prevent pitting in concrete surfaces?

A: While it's challenging to entirely prevent pitting, regular maintenance can help minimize the risk. Avoid using harsh chemicals on concrete surfaces, promptly address any spills or stains, and consider applying a concrete sealer for added protection.


Q: Can I use regular concrete mix for repairs?

A: It's recommended to use a specialized concrete patching compound or overlay material designed for repairs. These products offer better adhesion, durability, and ease of application compared to regular concrete mix.


Q: Will the repaired area match the rest of the concrete?

A: With careful color matching and proper execution, the repaired area can blend seamlessly with the rest of the concrete. However, keep in mind that achieving an exact match may be challenging, especially if the existing concrete has weathered or undergone color changes over time.

hiring a floor contractor

Hiring Floor Coating Contractors

A pitted concrete garage floor can be a safety hazard and an eyesore. If you're not confident in your DIY skills, consider hiring experienced floor coating professionals to help you with the repair project.

They will assess the damage, prepare the surface, select appropriate materials, and carry out the repairs with the utmost precision—saving you time and effort in the process.

Additionally, professional floor coating contractors can provide customized solutions for your particular project. They will work with you to find the best solution that fits your budget and meets your aesthetic preferences.

If you're planning to repair pitted concrete, contact an experienced contractor today for a hassle-free experience. They can help you restore the beauty and functionality of your concrete surfaces efficiently and effectively.


Concrete pitting can be unsightly and pose risks if left unrepaired. Fortunately, with the right techniques and materials, you can restore the beauty and functionality of your concrete.

Whether you're dealing with minor pits or deeper damage, the repair process involves cleaning, patching, or resurfacing the affected areas.

Remember to assess the extent of the damage, choose appropriate repair methods, and follow the manufacturer's instructions for the best results.

Onfloor is here to assist you in your concrete repair journey. Our range of high-quality concrete repair products and equipment can simplify the process and ensure professional-grade results.

Take the first step towards restoring your pitted concrete by visiting our website or contacting our knowledgeable team for personalized guidance.

So, don't let pitted concrete bring down the appeal of your surfaces. Take action and restore their beauty, durability, and safety. With the right approach and the assistance of Onfloor, you can enjoy a smooth and flawless concrete surface for years to come.

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