Crack Sealing

Crack Sealing: The Essential First Line of Defense for Asphalt

Crack sealing is the most cost-effective way to stop water from infiltrating your pavement base and turning small defects into potholes, alligator cracking, and costly replacements. As Tennessee’s local paving pros, Select Chip Seal uses hot-applied, rubberized sealants and a disciplined process to restore flexibility, block moisture, and extend the life of your surface. If you’re weighing options, start with a quick assessment on our asphalt repair or asphalt paving pages.

What Is Asphalt Crack Sealing and Why It Matters

Crack sealing is a long-lasting repair method that cleans, prepares, and fills pavement cracks with an elastomeric, hot-applied sealant. Unlike surface “band-aids,” professional sealing bonds to crack walls and flexes through Tennessee’s temperature swings. The payoff is big: less water reaching the base, slower crack growth, fewer patches, and a longer interval before overlays. Learn how sealing fits into a broader plan on sealcoating and asphalt repair.

Crack Sealing vs. Crack Filling: Choosing the Right Treatment

Crack sealing is best for “working” cracks that open and close seasonally. Hot rubberized sealant is routed (or neatly banded) into a clean reservoir so it can stretch without tearing.
Crack filling is a more economical option for non-working or low-movement cracks in areas with minimal thermal cycling. It offers shorter life than sealing but still blocks water for a season or two.
Not sure which you have? Our inspectors identify movement type, width, and pattern, then recommend sealing or filling. Book an evaluation through our contact page.

Types of Asphalt Cracks and What They Signal

Longitudinal and transverse cracks: Often temperature- or shrinkage-related; typically good candidates for hot-applied sealing.
Block cracking: Grid-like pattern from aging binder; sealing helps, but resurfacing may be near.
Edge cracks: Usually tied to shoulder support and drainage issues; sealing plus edge stabilization recommended.
Reflective cracks: Mirror joints through an overlay; sealing can slow propagation, but plan for future resurfacing.
Alligator (fatigue) cracking: Structural failure. Sealing won’t solve it; consider patching or full-depth repair under asphalt repair.

Our Professional Crack Sealing Process in Tennessee

Inspection and mapping: We rate pavement condition, locate priority areas, and note drainage and base concerns.
Preparation: Power brooming and compressed air remove dust; heat lance or drying ensures clean, dry walls.
Routing (as needed): Creates a uniform reservoir so sealant bonds well and can expand/contract without tearing.
Hot-applied sealant: Polymer-modified rubber is heated to spec, placed precisely, and tooled for profile and adhesion.
Finishing: A light blot of aggregate (when specified) reduces tracking; traffic returns once cooled and set.
Protection plan: We align crack sealing with future sealcoating and routine inspections to maximize service life.

Best Timing for Crack Sealing in Tennessee’s Climate

Sealing is ideal in cool, dry weather when cracks are more open and surfaces are moisture-free. Spring and fall offer excellent bond conditions, but well-managed summer projects perform great with proper surface prep. We schedule sealing ahead of your planned sealcoating window to reduce downtime and optimize performance.

Driveway Crack Sealing vs. Parking Lot Crack Sealing

Residential driveways: Focus on tight, routed seals, clean edges, and neat banding for curb appeal. Pair with sealcoating to unify color and protect from UV and oil drips.
Commercial lots: Prioritize traffic control, ADA routes, and phasing to minimize disruption. Seal first, then stripe and refresh layout under asphalt paving or asphalt repair.

When Crack Sealing Isn’t Enough—Overlay or Replace?

If you’re seeing widespread alligator cracking, base pumping, or chronic standing water, crack sealing alone won’t solve the root cause. We’ll recommend targeted patches, mill-and-overlay, or reconstruction:
Overlay (resurfacing): Sound base but aged surface? Correct birdbaths and tie-ins, then place a new wear course under asphalt paving.
Chip seal option: For long rural drives, a textured, value-forward chip seal overlay adds traction and weather resistance.
Replacement: Structural failures or severe contamination call for base rebuild and new pavement under asphalt paving.

Cost Factors for Professional Crack Sealing

Total linear feet and average crack width
Routing requirements and accessibility
Surface cleaning time and moisture conditions
Traffic control, phasing, and business-hour constraints
Add-ons like spot patching, leveling, and post-seal sealcoating
We provide clear, per-linear-foot pricing and line-item options so you can compare sealing alone vs. sealing plus strategic patching. Start a quote on asphalt repair.

Maintenance After Crack Sealing: Protecting Your Investment

Allow proper cool-down before traffic or turning tires in place.
Keep edges supported with soil or stone shoulders to reduce edge cracking.
Schedule periodic sealcoating to block UV and oils.
Inspect annually—especially after winter—to spot new cracks early and reseal as needed.
Manage runoff: clean gutters, redirect downspouts, and address birdbaths so water doesn’t linger.

FAQs About Asphalt Crack Sealing

How long does crack sealing last? With proper prep and routing, sealed cracks can perform for several seasons, especially when paired with regular sealcoating.
Will it match my pavement color? Fresh sealant is dark; a subsequent sealcoat blends appearance across the surface.
Can you seal alligator cracking? No. That’s structural. See patching and full-depth repairs under asphalt repair.
Do you seal before or after an overlay? Seal structural cracks and perform patches first; overlays follow once defects are corrected.

Get a Crack Sealing Assessment and Free Estimate

Stop water before it reaches the base and protect your pavement with professional crack sealing from Select Chip Seal. Whether you manage a busy parking lot or a family driveway, we’ll map defects, recommend the right treatment, and schedule work around your calendar. Explore related services—asphalt repair, sealcoating, asphalt paving, and chip seal—or reach out on our contact page for a free, no-pressure estimate.