Seal Driveway Cracks
Why It Matters
Water seeps into cracks, freezes, and expands, turning a small crack into a pothole. Sealing now saves a full repaving later.
Quick Guide
- 1
Gather your tools and materials
You'll need: Wire brush, Caulk gun. Materials required: Driveway crack filler, Concrete patch compound.
- 2
Perform the seal driveway cracks
Fill cracks in your asphalt or concrete driveway with appropriate filler to prevent water infiltration and further damage. Safety note: Work in well-ventilated area.
- 3
Verify and clean up
Check that the work was completed correctly and clean up your workspace. If cracks wider than 1 inch or extensive damage, consider calling a professional.
Tools & Materials
Tools
- Wire brush
- Caulk gun
Materials
- Driveway crack filler
- Concrete patch compound
Community Tips
Clean cracks down to bare concrete with a wire brush before filling, as dirt and debris prevent proper adhesion and reduce sealant lifespan by 50% or more. Concrete patch compound like Sakrete Concrete Crack Sealant ($8-12) bonds only to clean surfaces and will fail prematurely over contaminated areas.
Avoid filling cracks wider than 1/2 inch with standard caulk alone, as thermal expansion causes the material to separate from the concrete edges within one season. Cracks exceeding this width require concrete patching compound first, then a flexible topcoat like Sikaflex Self-Leveling Polyurethane ($12-18) to accommodate movement.
A single-project approach costs $15-25 in materials, but purchasing a bulk caulk gun setup with multiple cartridges of DAP Concrete Caulk ($6-10 per cartridge) makes economic sense for homeowners with multiple driveways or routine maintenance across exterior concrete. Most driveway sealing projects consume 2-4 cartridges depending on crack density and length. ---