Cracks in your driveway aren't just cosmetic—they let water in, which causes much bigger problems. Here's how to assess your cracks and decide whether to DIY or call a professional.
Types of Driveway Cracks
Linear/Longitudinal Cracks
What they look like: Straight cracks running along the driveway
Cause: Usually poor joint construction or natural settling
DIY-able: Yes, if narrow (<1/4 inch)
Alligator/Fatigue Cracks
What they look like: Interconnected cracks resembling alligator skin
Cause: Base failure, typically from water damage or poor initial construction
DIY-able: No—requires professional repair or replacement
Edge Cracks
What they look like: Cracks along the edges of the driveway
Cause: Lack of edge support, vehicles driving on edges
DIY-able: Small ones yes; extensive edge damage needs professional work
Block Cracks
What they look like: Large rectangular patterns
Cause: Asphalt shrinkage from age or temperature cycling
DIY-able: Individual cracks yes; widespread patterns may need resurfacing
DIY Crack Repair
Best for: Small cracks under 1/4 inch wide with no base damage
Materials You'll Need
- Crack filler (liquid pour or caulk-style)
- Wire brush or screwdriver
- Leaf blower or broom
- Gloves and old clothes
DIY Steps
- Clean the crack: Remove all debris, vegetation, and loose material
- Dry completely: Wait for dry weather, no rain for 24 hours
- Apply filler: Fill crack slightly above surface level
- Smooth: Level with putty knife or back of trowel
- Cure: Allow 24-48 hours before driving on it
DIY Limitations
- Store-bought fillers aren't as durable as professional materials
- May need to repeat annually
- Won't fix underlying base problems
- Large cracks need professional hot-pour methods
When to Call a Professional
Contact a professional crack repair service when:
- Cracks are wider than 1/2 inch: Need hot-pour sealant
- Alligator cracking present: Indicates base failure
- Cracks are deep: Need proper filling technique
- Large areas affected: More efficient to do professionally
- Before sealcoating: Professional prep ensures best results
Professional Crack Repair Methods
Hot-Pour Crack Sealing
- Rubberized material heated to 400°F
- Stays flexible through temperature changes
- Lasts 3-5+ years
- Best for working cracks
Routing and Sealing
- Crack is widened to create uniform channel
- Allows more sealant for better adhesion
- Best for larger cracks
Cost Comparison
| Method | Cost | Longevity |
|---|---|---|
| DIY Cold Pour | $10-$30 | 1-2 years |
| Professional Hot-Pour | $0.50-$1.50/linear ft | 3-5+ years |
Get Professional Crack Repair
Need help with your driveway cracks? We provide professional crack filling services throughout Southern Illinois.