Seal Cracks Now or Repair Potholes Later

Crack Filling in Hartsville and surrounding areas for asphalt surfaces showing surface cracks before water penetrates the base

Blacktop Sealcoating provides crack filling in Hartsville, Charlotte, Columbia and surrounding areas for property owners who notice small cracks forming in driveways or parking lots. You may see narrow lines running across the pavement surface or along the edges where the asphalt meets concrete curbs. These cracks might seem minor at first, but they allow rainwater to seep beneath the surface and erode the base material that supports the pavement above.


Crack filling addresses these openings before they expand into larger structural failures that require expensive patching or resurfacing. We use a rubberized crack filler that remains flexible as temperatures change and pavement shifts with seasonal freeze-thaw cycles. This service is commonly performed before sealcoating to create a complete barrier against water infiltration and to improve the overall effectiveness of the protective coating. Filling cracks early helps extend pavement life and reduces the likelihood of potholes forming in high-traffic areas where vehicles apply constant stress to weakened sections.


If you see cracks developing in your pavement, reach out to schedule crack filling before the damage spreads and becomes more costly to repair.

How Crack Filling Prevents Larger Failures

When you arrange crack filling, we begin by cleaning the cracks with wire brushes, compressed air, or heat lances to remove dirt, vegetation, and loose material that would prevent the filler from bonding to the pavement walls. We heat the crack filler to a liquid state and pour it into the openings using pour pots or specialized applicators that push the material deep into the crack without leaving air pockets. For wider cracks, we may apply backer rod before filling to provide a stable base for the sealant.


After the work is complete, you will see cracks that are sealed flush with the surrounding pavement and no longer collect water or debris. Blacktop Sealcoating uses crack filler that remains pliable through temperature swings, which prevents the seal from cracking as the pavement expands and contracts with seasonal changes. You will notice that rainwater runs off the surface instead of disappearing into the cracks, and the pavement feels more solid underfoot because the base layer is no longer exposed to moisture that weakens its load-bearing capacity.


Crack filling works best when performed during mild weather with low humidity, which allows the filler to bond properly. We address surface cracks and joint separations, but we do not repair structural cracks caused by base failure or settling, which require excavation and reconstruction.

Property owners in Hartsville and neighboring communities often ask how crack filling protects their investment and what they should expect during and after the service.

Questions About Crack Filling and Pavement Protection

Why should I fill cracks instead of waiting until they get worse?

Filling cracks early prevents water from reaching the base layer and causing potholes or pavement collapse, which cost significantly more to repair than surface crack sealing.

How does water damage asphalt through small cracks?

Water seeps through cracks, soaks into the base material, and weakens its ability to support the pavement above, which leads to voids that collapse under vehicle weight.

When is the best time to fill cracks in Hartsville?

Schedule crack filling during warmer months when temperatures stay above 45 degrees, which allows the filler to cure properly without interference from moisture or freezing temperatures.

What type of material is used to fill asphalt cracks?

We use rubberized crack filler that stays flexible through temperature changes and bonds to the pavement walls, creating a watertight seal that lasts through multiple seasons.

What will my pavement look like after crack filling?

Your pavement will show dark lines where the cracks were sealed, and you will notice that water no longer collects in those areas during rainstorms.

If cracks are forming in your driveway or parking lot, contact Blacktop Sealcoating to schedule an inspection and discuss a repair plan before the damage spreads and requires more extensive work.