How to Seal Small Cracks in an Asphalt Driveway

Small asphalt cracks are easier to manage before water and freeze-thaw cycles make them larger. The repair works best when the crack is clean, dry, and within the size range specified by the filler product.

Tools you will probably need

• stiff brush
• shop vacuum or blower
• caulk gun if using cartridge filler

Materials

• asphalt crack filler matched to crack size
• patch material only if the product calls for it

Project steps

1. Remove weeds, loose asphalt, dirt, and debris from the crack.
2. Let the crack dry completely unless the product specifically allows damp application.
3. Apply the filler according to its width and depth limits.
4. Tool or level the repair if required and keep traffic off it for the stated cure time.

Common mistakes

• Filling over dirt and weeds
• Using thin crack filler for a wide failed section
• Driving over the repair before it cures

When to call someone

Call a paving professional for widespread alligator cracking, major settlement, deep potholes, drainage failures, or cracks that keep opening quickly.

Project costs and times are rough planning estimates. Product instructions, local codes, home construction, and actual conditions take priority.