Damaged asphalt does not always mean you need a completely new driveway or parking lot. Sealcoating contractors first determine what type of damage is present and whether the pavement is strong enough to receive a protective coating. Small cracks and surface wear may need minor preparation, while potholes, deep cracks, or sunken sections require repairs first.
The important rule is simple: repair damaged asphalt before sealcoating it. Sealcoating can protect sound asphalt from UV exposure, moisture, oxidation, and everyday wear, but it cannot rebuild a weak base or correct major structural problems. Professional contractors inspect the pavement, prepare the surface, complete necessary repairs, and then apply the sealcoat.
What Do Sealcoating Contractors Do With Damaged Asphalt?
Professional contractors normally follow a condition-based process rather than applying sealer over every problem they see. The repair method depends on the depth, size, location, and cause of the damage.
1. Inspect the Asphalt
The first step is a detailed surface inspection. Contractors look for cracks, potholes, raveling, oil stains, standing water, broken edges, depressions, and previous repair areas.
2. Clean the Surface
Dirt, loose aggregate, vegetation, and oil can prevent proper bonding. Contractors sweep, blow, wash, or treat contaminated areas before beginning repair work.
3. Seal Small and Moderate Cracks
Crack sealing is used when cracks have not developed into major structural failures. Filling these openings helps limit water entry and prevents small defects from becoming larger repair areas.
4. Repair Potholes and Broken Sections
Potholes are different from ordinary cracks. They can indicate that water has reached lower pavement layers or that the asphalt has lost structural support. Contractors may use patching or hot asphalt repair before applying sealcoat.
5. Correct Serious Surface Problems
Sunken areas, damaged garage aprons, major depressions, or drainage-related problems may require more extensive asphalt repair. Sealcoating alone cannot level a depressed surface or rebuild a failed base.
6. Apply Sealcoat After Repairs
Once repairs are completed and properly set, the contractor prepares the remaining pavement for coating. Sealcoating then provides a protective surface that helps reduce water exposure, UV-related oxidation, and surface wear.
7. Allow Proper Curing
The pavement needs adequate curing time before normal traffic returns. Temperature, humidity, product type, and weather conditions all affect drying and curing, so contractors should follow the product requirements and avoid sealing when rain or unsuitable conditions are expected.
How Can You Tell if Asphalt Needs Repair Before Sealcoating?
Look for wide or recurring cracks, potholes, crumbling edges, standing water, sunken areas, and loose aggregate. These signs can indicate that the pavement needs more than a simple protective coating.
A useful rule is: sealcoat protects repaired asphalt; it does not replace asphalt repair. If a contractor recommends sealing over serious structural damage without addressing the cause, ask what will prevent the problem from returning.
How Do Sealcoating Contractors Get Better Results?
Good results depend heavily on preparation. Contractors should clean the pavement thoroughly, remove contaminants, repair appropriate cracks and damaged sections, check weather conditions, and apply the coating at the correct coverage rate.
It is also important to choose a contractor who explains what the asphalt needs and why rather than automatically recommending the same treatment for every driveway or parking lot.
My Personal Experience
From a homeowner’s perspective, the biggest difference is usually visible after the inspection, not when the sealer goes down. A contractor who identifies weak spots early can address problems before they spread across a larger section.
I would pay particular attention to cracks that keep reopening, areas where water remains after rain, and asphalt that feels loose or crumbles around the edges. Those signs deserve an explanation before any sealcoat is applied.
Pros and Cons of Professional Asphalt Repair and Sealcoating
Pros
- Helps protect sound asphalt from weather and surface wear.
- Addresses cracks and damaged areas before they become larger problems.
- Improves the appearance of faded pavement.
- Can form part of a regular asphalt maintenance plan.
Cons
- Sealcoating cannot repair major structural failures.
- Damaged areas may require additional repair costs first.
- The pavement must remain closed during the curing period.
- Poor preparation can reduce the life of the finished coating.
How to Maintain Asphalt After Sealcoating
Keep heavy traffic off the surface during the recommended curing period. Watch for new cracks, standing water, oil contamination, and crumbling edges. Early maintenance is usually easier than waiting until damage becomes extensive.
Conclusion
Sealcoating contractors handle damaged asphalt by inspecting it first, repairing problems that require attention, and applying sealcoat only when the pavement is ready. Small cracks may need crack sealing, while potholes, sunken areas, and structural damage can require patching or more extensive repairs.
The goal is not simply to make old asphalt look black again. The goal is to protect a sound surface and address damage before it becomes more expensive to fix.
FAQs
Can you sealcoat damaged asphalt?
Yes, but serious damage should be repaired first. Sealcoating protects asphalt but does not fix potholes, deep structural cracks, or a failed base.
Should cracks be filled before sealcoating?
Yes. Contractors generally repair suitable cracks before applying the protective coating so water cannot continue entering through open cracks.
Can sealcoating fix potholes?
No. Potholes require appropriate patching or asphalt repair before sealcoating can be considered.
How often should asphalt be sealcoated?
The schedule depends on pavement condition, traffic, weather, drainage, and previous treatments. Many residential surfaces are maintained on a roughly two- to three-year cycle, but contractors should evaluate the actual pavement before recommending a schedule.