Top 10 Mistakes to Avoid When Sealing Concrete Driveways

Top 10 Mistakes to Avoid When Sealing Concrete Driveways

When it comes to sealing concrete driveways, there are common mistakes that many homeowners make that could have detrimental effects on the longevity and appearance of the driveway. In this article, we will discuss the top 10 mistakes to avoid when sealing your concrete driveway to ensure it maintains its durability and aesthetic appeal for years to come.

Top 10 Mistakes to Avoid When Sealing Concrete Driveways

When it comes to sealing concrete driveways, there are several common mistakes that homeowners make that can compromise the longevity and effectiveness of the sealant. By avoiding these mistakes, you can ensure that your concrete driveway remains in top condition for years to come.

1. Not Cleaning the Surface Properly

One of the most crucial steps in sealing a concrete driveway is ensuring that the surface is clean and free of any debris or stains. Failing to properly clean the surface can prevent the sealant from properly adhering to the concrete, leading to premature wear and potential damage.

1.1 Using the Wrong Cleaning Products

Using the wrong cleaning products can do more harm than good when preparing a concrete driveway for sealing. Certain chemicals and cleaners can react negatively with the sealant, causing it to break down or not adhere properly. It is important to use a mild detergent or specifically designed concrete cleaner to ensure the best results.

1.2 Not Removing Stains and Debris

Simply washing the surface of a concrete driveway may not be enough to remove tough stains or embedded debris. It is important to thoroughly scrub the surface and use a pressure washer if necessary to ensure that all stains and debris are removed before applying the sealant. Failure to do so can result in a patchy or uneven seal, compromising the overall appearance and effectiveness of the driveway.

2. Skipping the Repair of Cracks and Damage

When it comes to sealing concrete driveways, one of the biggest mistakes you can make is skipping the repair of cracks and damage. Neglecting these issues can lead to bigger problems down the road and compromise the overall integrity of your driveway. Here are some key areas to focus on when it comes to repairing cracks and damage:

2.1 Failing to Fill Cracks

Cracks in your concrete driveway are not just unsightly, they can also allow water to seep in and cause further damage. Failing to fill cracks before sealing your driveway can result in a shorter lifespan for the sealant and ultimately, the driveway itself. Be sure to thoroughly clean out any debris from the cracks and use a high-quality concrete crack filler to ensure a smooth and even surface.

2.2 Ignoring Spalling or Scaling

Spalling and scaling refer to the flaking or peeling of the concrete surface, typically caused by freeze-thaw cycles or improper sealing. Ignoring these issues and proceeding with sealing your driveway can result in a patchy and uneven finish. It’s important to address any spalling or scaling by removing the damaged areas and properly patching them before applying the sealant.

2.3 Neglecting Joint Repairs

Joints in concrete driveways are designed to allow for expansion and contraction with changes in temperature. Neglecting to repair damaged joints can lead to water infiltration and further deterioration of the driveway. Make sure to inspect the joints for any signs of damage, such as crumbling or separation, and repair them using a flexible joint sealant before sealing the driveway.

By addressing these key areas of crack and damage repair, you can ensure a long-lasting and well-maintained concrete driveway that will stand up to the elements for years to come.

3. Applying Sealer Incorrectly

When it comes to sealing concrete driveways, applying the sealer correctly is crucial to ensure long-lasting protection. Here are some common mistakes to avoid:

3.1 Not Using the Right Tools

One of the most common mistakes when applying sealer to a concrete driveway is not using the right tools. Using the wrong tools can result in uneven application, streaks, or even pooling of the sealer. To prevent this, make sure to use a high-quality sprayer or roller specifically designed for applying concrete sealer.

3.2 Overapplying or Underapplying Sealer

Another common mistake is overapplying or underapplying the sealer. Overapplying can lead to a thick, uneven coat that may not properly adhere to the concrete surface, while underapplying can result in inadequate protection. To avoid this, follow the manufacturer’s instructions for proper application and coverage rates.

3.3 Not Allowing Proper Drying Time

One crucial step that is often overlooked is not allowing the sealer to dry properly. It is important to follow the recommended drying time specified by the manufacturer before allowing any foot or vehicle traffic on the driveway. Failure to do so can result in premature wear and damage to the sealer.

By avoiding these common mistakes and ensuring that the sealer is applied correctly, you can help protect your concrete driveway and prolong its lifespan.

4. Not Choosing the Right Sealer

When it comes to sealing concrete driveways, selecting the right sealer is crucial to ensure long-lasting protection and durability. Many homeowners make the mistake of using the wrong type of sealer or ignoring climate and weather conditions, which can result in premature deterioration and costly repairs. Here are some common pitfalls to avoid:

4.1 Using the Wrong Type of Sealer

One of the biggest mistakes homeowners make is choosing the wrong type of sealer for their concrete driveway. There are different types of sealers available, such as acrylic, epoxy, and penetrating sealers, each with its own set of benefits and limitations. Using the wrong type of sealer can lead to poor adhesion, discoloration, and ineffective protection against stains and UV rays. It is essential to research and consult with a professional to determine the best sealer for your specific driveway needs.

4.2 Ignoring Climate and Weather Conditions

Another common mistake is overlooking the impact of climate and weather conditions on the performance of the sealer. Extreme temperatures, humidity, and precipitation can affect the curing process and adhesion of the sealer, leading to premature failure. It is important to consider the local climate and weather patterns when selecting a sealer and to follow the manufacturer’s guidelines for application and curing times. Additionally, regular maintenance and reapplication may be necessary to ensure optimal protection against the elements.

5. Sealing Over Existing Sealer

One common mistake to avoid when sealing concrete driveways is applying a new coat of sealer over existing sealer. This can lead to a variety of issues and can compromise the effectiveness of the new sealant. Here are some reasons why you should not seal over existing sealer:

  1. Adhesion Issues: When you apply a new layer of sealer over an existing one, there is a risk of poor adhesion between the two layers. This can result in the new sealer not properly bonding to the concrete surface, leading to premature failure and flaking.

  2. Uneven Finish: If there are any imperfections or peeling in the existing sealer, applying a new coat on top can result in an uneven finish. This can detract from the appearance of your driveway and make it look unprofessional.

  3. Trapped Moisture: Sealing over existing sealer can trap moisture between the layers, which can lead to mold and mildew growth. This can cause discoloration and deterioration of the concrete over time.

  4. Shortened Lifespan: By not properly preparing the surface before applying a new sealer, you are essentially shortening the lifespan of the sealant. This can result in the need for more frequent resealing, costing you more time and money in the long run.

To avoid these issues, it is important to properly prepare the concrete surface by removing any existing sealer before applying a new coat. This can be done through methods such as pressure washing, chemical stripping, or grinding. By taking the time to properly prepare the surface, you can ensure that the new sealer will adhere properly and provide long-lasting protection for your driveway.

6. Sealing in Extreme Temperatures

Sealing your concrete driveway in extreme temperatures can lead to poor results and potential damage to the surface. Here are some mistakes to avoid when sealing in extreme temperatures:

  1. Sealing in High Heat: Avoid sealing your driveway when the temperature is too high, as this can cause the sealer to dry too quickly and not bond properly to the concrete surface. It’s best to seal your driveway when the temperature is between 50-80 degrees Fahrenheit.

  2. Sealing in Direct Sunlight: Sealing your driveway in direct sunlight can also cause the sealer to dry too quickly and lead to uneven application. Try to seal your driveway in the early morning or late afternoon when the sun is not directly overhead.

  3. Sealing in Freezing Temperatures: Attempting to seal your driveway in freezing temperatures can cause the sealer to not cure properly and lead to flaking or peeling. Make sure the temperature is above freezing and will remain so for at least 24 hours after sealing.

  4. Using Cold Sealer: If you are sealing in colder temperatures, make sure to warm up the sealer before applying it to ensure proper adhesion to the concrete surface. Cold sealer can be difficult to spread and may not bond correctly.

By avoiding these common mistakes when sealing your concrete driveway in extreme temperatures, you can ensure a long-lasting and professional finish.

7. Not Following Manufacturer’s Instructions

One common mistake that people make when sealing their concrete driveways is not following the manufacturer’s instructions. Each sealant product may have specific application guidelines that need to be adhered to in order to ensure the best results. This could include recommendations on surface preparation, application techniques, drying times, and more.

Failure to follow the manufacturer’s instructions can result in the sealant not adhering properly to the concrete surface, leading to premature wear and tear. It can also affect the appearance of the driveway, causing it to look uneven or blotchy.

To avoid this mistake, always carefully read and follow the instructions provided by the sealant manufacturer. If you have any questions or concerns, don’t hesitate to reach out to the manufacturer or a professional contractor for guidance. By following the recommended guidelines, you can ensure that your concrete driveway is properly sealed and protected for years to come.

8. Not Testing the Sealer First

Before applying any sealer to your concrete driveway, it is crucial to test it first. This will help you determine if the sealer is compatible with your specific type of concrete and if it will provide the desired results.

Here are a few reasons why testing the sealer first is important:

  1. Compatibility: Not all sealers are suitable for all types of concrete. By testing the sealer first, you can ensure that it will adhere properly and not cause any damage to your driveway.

  2. Durability: Testing the sealer will give you an idea of how well it will hold up against the elements and traffic. This will help you choose a sealer that will provide long-lasting protection for your driveway.

  3. Appearance: Different sealers can have different effects on the appearance of concrete. Testing the sealer will allow you to see how it will enhance the color and texture of your driveway.

In conclusion, testing the sealer before applying it to your concrete driveway is a crucial step that should not be overlooked. By taking the time to test the sealer, you can avoid potential problems and ensure that your driveway remains protected and looking its best for years to come.

9. Not Maintaining the Sealed Driveway

One common mistake that homeowners make after sealing their concrete driveway is neglecting to properly maintain it. Without regular maintenance, the sealer can wear down quickly, leaving your driveway vulnerable to damage from water, oil, and other substances.

To ensure that your sealed driveway stays in top condition, it’s important to regularly clean it with a gentle detergent and water. Avoid using harsh chemicals or pressure washers, as these can strip away the sealer and damage the concrete underneath.

Additionally, consider applying a fresh coat of sealer every 1-3 years, depending on the amount of traffic your driveway sees. This will help to keep your driveway looking smooth and protected from the elements.

By staying on top of maintenance tasks, you can extend the lifespan of your sealed driveway and avoid costly repairs in the future.

10. Hiring Inexperienced Contractors

When it comes to sealing concrete driveways, hiring the right contractor can make all the difference. Avoid the mistake of hiring inexperienced contractors who may not have the necessary skills and knowledge to properly seal your driveway.

Inexperienced contractors may use the wrong sealant for your specific driveway type, leading to premature deterioration and costly repairs down the line. They may also apply the sealant incorrectly, resulting in an uneven finish and poor protection against the elements.

To avoid this mistake, take the time to research potential contractors and ask for references. Look for contractors with experience specifically in sealing concrete driveways, and don’t be afraid to ask questions about their process and the products they use. By hiring a qualified and experienced contractor, you can ensure that your driveway is sealed properly and will last for years to come.


In conclusion, properly sealing your concrete driveway is crucial for maintaining its longevity and appearance. By avoiding common mistakes such as applying sealant in extreme temperatures, using the wrong type of sealant, or neglecting proper preparation, you can ensure that your driveway remains in top condition for years to come. Remember to follow the manufacturer’s instructions, take your time during the sealing process, and address any cracks or damage before applying sealant. By taking these precautions and avoiding the top 10 mistakes outlined in this article, you can enjoy a beautiful and durable concrete driveway for many years.