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8 Ways to Repair a Deteriorating Concrete Patio


A concrete patio is a popular outdoor space for many homeowners. It provides a durable and low-maintenance option for entertaining, relaxing, and enjoying the outdoors.

However, over time, wear and tear can cause your concrete patio to deteriorate, leaving it looking unsightly and potentially unsafe. Fortunately, there are several ways to repair your existing concrete patio to restore its appearance and functionality.

In this guide, we will discuss 8 effective ways to repair a deteriorating concrete patio, allowing you to continue enjoying your outdoor space for years to come.

What Causes Concrete Patios to Deteriorate?

Concrete patios can deteriorate due to a variety of reasons, including:

  • Exposure to harsh weather conditions such as extreme heat, cold, and moisture.
  • Heavy foot traffic or heavy objects being placed on the surface.
  • Improper installation or lack of maintenance.
  • Chemical spills and stains from oil, grease, or other substances.

Understanding the cause of deterioration is important in determining the best repair method for your concrete patio. It can also help prevent future damage and keep your patio looking great for years to come.

Importance of Repairing a Deteriorating Concrete Patio

Repairing a deteriorating concrete patio is not just about improving its appearance, but it also has many practical benefits, such as:

  • Preventing further damage and avoiding costly repairs in the future.
  • Creating a safe patio surface to prevent tripping hazards.
  • Increasing the longevity of your patio by addressing underlying issues and maintaining its structural integrity.
  • Enhancing the overall value and curb appeal of your property.

By repairing your deteriorating concrete patio, you’re not only saving money in the long run but also enjoying a beautiful and functional outdoor space that adds value to your home.


Signs of a Deteriorating Concrete Patio

Cracks and Holes

Concrete cracks and holes are a common sight on older concrete patios and can be caused by a variety of factors such as freezing temperatures, heavy foot traffic, or even tree roots growing underneath the surface. These cracks and holes not only look unsightly, but they can also pose a safety hazard.


Discoloration and Stains

Over time, concrete patios can become discolored and stained due to exposure to elements such as sun, rain, and dirt. This is not only unappealing but can also be difficult to clean with traditional methods.

Uneven Surface

Uneven surfaces on concrete patios are not only unpleasant to look at but can also pose a safety hazard. This is often caused by the ground shifting underneath the concrete, leading to sunken or raised areas.

In this next section, we will discuss 8 ways to repair a deteriorating concrete patio and restore its appearance and functionality.

1. Clean and Reseal

One of the easiest and most cost-effective ways to repair a deteriorating concrete patio is by cleaning and resealing it. Over time, dirt, grime, and other debris can build up on the surface of the concrete, making it look dull and worn.

By thoroughly cleaning the patio with a pressure washer or concrete cleaner and then applying a fresh coat of sealant, you can restore its appearance and protect it from further damage.

2. Patch Cracks and Holes

A few cracks and holes in the concrete may not seem like a big deal, but they can quickly become larger and cause significant damage to your patio.

To seal common concrete cracking, you can use a concrete patching compound that is specifically designed for outdoor use. Simply fill in the cracked concrete or holes with the compound and smooth it out with a trowel. Once it dries, it will blend in seamlessly with the rest of the concrete.

3. Resurface

For more extensive damage, such as large cracks or deep pits, resurfacing your concrete patio may be necessary. This involves applying a thin layer of concrete over the existing surface to create a smooth and even finish. This can also help with discoloration and stains on the concrete.


4. Stain or Paint

If your concrete patio is stained or discolored, you can give it a fresh new look by staining or painting it. Concrete stains come in a variety of colors and can be used to create a custom design or pattern on your patio.

Paint is another option, but make sure to use a concrete-specific paint for best results, as well as a proper concrete broom to remove debris before applying the paint or stain.

Onfloor machines are perfect for prepping concrete slabs or surfaces before staining or painting. The Onfloor OF16S-H is a high-speed machine that can effectively remove any existing coatings or stains from the surface, ensuring a clean and smooth base for your new finish.

5. Add an Overlay

If you want to completely transform the look of your patio, adding an overlay is a great option. It involves placing a thin layer of concrete over the existing concrete slab and can be used to create different textures and patterns. This method is also useful for hiding imperfections in the original concrete.

Onfloor machines can assist with this process by providing a smooth and even finish to the overlay. The Onfloor OF16S-L is perfect for this task because it allows for easy polishing and finishing of concrete surfaces.

6. Repair or Replace Edging

The edging of your concrete patio often takes the most wear and tear, especially if it is made of brick or pavers. If the edging is damaged, it can make your entire patio look unkempt. Repairing or replacing the edging can help give your patio a fresh and polished appearance.

7. Level Sunken Concrete

Over time, concrete patios can sink or become uneven due to changes in the ground underneath. Not only does this look unappealing, but it can also be a tripping hazard. To fix this issue, you can use polyurethane foam to level out the concrete or hire a professional to do the job for you.

Onfloor machines can assist with the process of leveling sunken concrete by providing a smooth and consistent finish to the surface. The Onfloor OF16S-L is a versatile machine that is perfect for this task since it can handle both polishing and leveling with ease.

8. Add Decorative Features

Lastly, adding decorative features such as outdoor rugs, furniture, and plants can all help distract from any imperfections in your patio while also enhancing its overall appearance. Plus, it's a fun and creative way to personalize your outdoor space.

While Onfloor machines may not directly assist with adding decorative features, they can provide a clean and polished surface for these items to sit on. The Onfloor OF16S-H is a versatile high-speed machine that can effectively prep the concrete surface for any decorations you choose to add.



Can I use a regular floor machine to repair my concrete patio?

While some regular floor machines may be able to handle light cleaning and polishing tasks on concrete, it is best to use a machine specifically designed for concrete surfaces. Onfloor machines are equipped with powerful motors and unique features that make them ideal for repairing and restoring deteriorating concrete patios.

Are there any safety precautions I should take when using an Onfloor machine on my concrete patio?

Yes, it is essential to wear protective gear, such as gloves, goggles, and a dust mask, when operating an Onfloor machine. Always read the user manual carefully before use and be sure to keep children and pets away from the work area.

What are expansion joints and do I need to seal those as well?

Expansion joints are gaps between sections of concrete that allow for movement and prevent cracking. It is not necessary to seal these, but we recommend that you fill them with a flexible joint filler to prevent debris from getting stuck in them.

How often should I clean and reseal my concrete patio?

It is recommended that you clean and reseal your resurfaced concrete patio every 2-3 years, depending on the level of foot traffic and exposure to weather elements. However, if you notice significant dirt or wear, it may be necessary to do it more frequently.

Can I repair my concrete patio in cold temperatures?

Ideally, repairs should be done when the temperature is above 50°F (10°C) and when there is no rain in the forecast for at least 24 hours. This allows the patching compound or overlay to properly cure and bond to the existing concrete surface.


With these 8 ways to repair a deteriorating concrete patio, you can restore its appearance and functionality without breaking the bank. Whether it's a simple crack or a complete resurfacing, there are solutions for every level of damage.

And with the help of Onfloor machines, the process can be even more efficient and effective. Say goodbye to unsightly concrete patios and hello to a beautiful outdoor space for you and your family to enjoy!

For a professional finish, trust Onfloor machines to get the job done quickly and efficiently. Don't wait any longer; give your patio the makeover it deserves with Onfloor. Contact us today - your patio will thank you!