Stop Small Cracks Before They Become Expensive Problems

Sunrise Sealcoat seals asphalt cracks in Idaho Falls and surrounding areas before water infiltration causes structural damage beneath the surface.

Sunrise Sealcoat provides asphalt crack repair for driveways and parking lots throughout Idaho Falls, Rexburg, Pocatello and surrounding areas. You notice thin lines spreading across your pavement, some barely wider than a pencil, others wide enough to catch a shoe heel. These cracks let water seep below the asphalt surface and into the base material underneath. When that water freezes during Idaho Falls winters, it expands and pushes the pavement apart, turning hairline cracks into wider gaps and eventually potholes. Sealing cracks early stops this cycle and protects the base layer that supports your entire driveway or lot.


Crack sealing fills active cracks with rubberized material designed to flex with temperature changes and prevent moisture intrusion. The process starts with cleaning debris and vegetation out of each crack using compressed air or mechanical tools. Sealant gets applied hot or cold depending on crack width and depth, filling the void completely so water cannot reach the base. This step happens before any sealcoating work because sealcoat cannot bond properly over open cracks and will not stop water from entering through existing gaps. In Idaho's freeze-thaw climate, crack sealing is one of the most cost-effective ways to extend pavement life.


Stop cracks early and request professional crack sealing before winter weather accelerates the damage.

How Crack Sealing Protects Your Pavement Investment

You begin with an inspection to identify which cracks need sealing and whether any have already caused base deterioration that requires deeper repair. The crew cleans each crack to remove dirt, weeds, and loose asphalt so the sealant adheres to stable material. Hot-pour rubberized sealant flows into the crack and fills it from bottom to top, creating a watertight barrier that flexes as the pavement expands and contracts with temperature swings.


After sealing, you see smooth black lines where cracks used to be, and water runs off the surface instead of disappearing into gaps. Your pavement stays stable through freeze-thaw cycles because moisture no longer reaches the base to cause heaving or erosion. The sealed cracks do not reopen immediately, and the asphalt around them remains intact instead of crumbling into larger voids. Sunrise Sealcoat evaluates each crack to determine whether sealing alone is enough or if sections need patching before sealing can work effectively.


Crack sealing works best on cracks less than half an inch wide with stable edges. Wider cracks or those with crumbling sides may require patching or resurfacing before sealant can hold. This service does not repair potholes or sunken areas, but it prevents cracks from expanding into those more expensive problems. Sealant cures quickly in warm weather and may take longer in cooler temperatures, so timing affects when you can drive on the surface again.

Here are answers to questions homeowners and property managers ask about crack repair services.

Common Questions About Sealing Asphalt Cracks

What causes asphalt cracks to form in the first place? Cracks develop from natural aging, UV exposure, temperature fluctuations, water infiltration, and ground movement, all of which stress the pavement until it splits along weak points.

How long does crack sealant last before it needs reapplication? Properly applied sealant typically lasts three to five years, though extreme temperature swings and heavy traffic in Idaho Falls can shorten that window depending on conditions.

When is the best time of year to seal cracks? Spring and fall offer moderate temperatures that help sealant cure evenly, though crack sealing can happen any time the pavement is dry and daytime temperatures stay above 50 degrees.

Why does crack sealing need to happen before sealcoating? Sealcoat is a surface treatment that cannot fill deep voids or stop water from entering through cracks, so sealing provides the structural protection that sealcoating alone cannot deliver.

What happens if I wait too long to seal a crack? Untreated cracks widen as water erodes the base material, leading to potholes, edge collapse, and pavement sections that require removal and replacement instead of simple sealing.

Sunrise Sealcoat inspects your pavement to identify cracks that need immediate attention and those you can monitor for future work. Contact them to schedule a crack sealing evaluation in Idaho Falls and protect your asphalt before the next freeze.