What Is Crack Sealing?
Crack sealing is the process of cleaning out cracks in asphalt pavement and filling them with hot-pour rubberized sealant. The sealant flexes with temperature changes, blocks water from reaching the sub-base, and prevents the freeze-thaw cycle that turns small cracks into potholes. Done annually, crack sealing is the single most cost-effective preventive maintenance step in pavement management.
Crack Sealing vs. Crack Filling
Crack sealing uses hot-applied rubberized polymer that flexes and bonds. Crack filling uses cold-pour materials that are cheaper but less durable. For commercial work, we use hot-pour crack seal — it lasts 5+ years vs. 1 to 2 for cold-pour fillers.
Our Crack Sealing Process
We start by routing cracks 1/4 inch wide or larger to create a clean, deep reservoir. The crack is then air-blown clean of debris and moisture. Hot-pour rubberized sealant heated to 380F is applied with a kettle wand, slightly overfilled, then squeegeed flush. The sealant sets within 30 minutes and accepts traffic within 1 to 2 hours.
When to Crack Seal
Best window is spring through fall when cracks are at their smallest (cold weather opens them up). Done annually, crack sealing prevents 80% of pothole formation. Most Chicagoland commercial properties need crack sealing every 1 to 2 years depending on traffic and pavement age.
Why Crack Sealing Matters
Water is the #1 destroyer of asphalt. A 1/4-inch crack lets water reach the sub-base, where it freezes, expands, and pushes asphalt out from below. One winter can turn a small crack into a 4-inch pothole. Crack sealing stops the cycle — and it costs cents per linear foot vs. dollars per square foot for pothole patching.
Frequently Asked Questions
How long does crack sealing last?
How often should I crack seal?
Can crack sealing fix alligator cracking?
Will crack seal show through new sealcoat?
Get a Free Crack Sealing Estimate
Every estimate is free, on-site, and itemized. Most project reviews coordinated after submission. Written quotes. No high-pressure sales calls and no lump-sum surprises — just a clear scope you can act on.
Match crack treatment to crack behavior
Crack sealing and filling are maintenance methods for selected cracks, not cures for alligator cracking or unstable pavement. Width, movement, contamination, moisture and surrounding condition affect preparation and material choice.
Put these items in the written scope
- Separate working cracks from fatigue cracking.
- Remove vegetation, debris and moisture as specified.
- Define routing or reservoir preparation where applicable.
- State material and placement temperature requirements.
- Keep failed pavement in a separate repair scope.
Related planning resources
Get a Free Crack Sealing & Crack Filling Estimate
Tell us about the property, pavement condition and operating constraints. We will review the request and coordinate the next step.