Introduction
If you’ve noticed a dip or drop in your asphalt driveway right where it meets the garage, you’re not alone. This common issue often referred to as a sunken driveway edge or asphalt lip problem can lead to scraping vehicles, poor transitions, and continued deterioration if left unaddressed. In many cases, this issue can be corrected with a targeted solution known as an asphalt lip repair or asphalt ramp installation.
Why Does Asphalt Sink at the Garage Entrance?
The garage entrance is one of the most stressed areas of any asphalt driveway. Over time, structural and mechanical factors can cause settlement in this area.
Base Settlement Over Time
Asphalt relies on a well-compacted base for support. Even when installed properly, base material can gradually settle, especially at transition points like garage entrances where asphalt meets concrete.
Freeze–Thaw Ground Movement
In colder climates, seasonal freeze–thaw cycles cause the ground beneath the driveway to expand and contract. This movement can lead to gradual settling, particularly at the garage edge.
Concentrated Vehicle Weight
Vehicles slow down, stop, and turn at the garage entrance. This repeated loading puts significant pressure on a small area, accelerating base compaction and contributing to sinking over time.
Original Compaction or Thickness Issues
If the asphalt or base layer was slightly thinner or less compacted at the garage entrance during installation, settlement often appears there first—sometimes years later.
What Is an Asphalt Lip or Ramp Repair?
An asphalt lip repair involves installing hot asphalt at the garage entrance to restore a smooth, gradual transition between the driveway and the garage floor. The area is prepared, hot asphalt is applied, graded, compacted, and blended seamlessly into the existing driveway surface.
Benefits of Asphalt Lip Repair
- Restores a smooth transition into the garage
- Reduces scraping and vehicle wear
- Helps prevent further settling at the entrance
- Extends the life of the existing driveway
- More cost-effective than full driveway replacement
When Is a Lip Repair the Right Solution?
Lip repairs are ideal when the sinking is localized at the garage entrance and the rest of the driveway remains structurally sound. If widespread settlement or cracking is present, partial rebuilding may be recommended.
DIY vs Professional Repair
Cold patch materials may offer short-term improvement, but professional repairs using hot asphalt, proper compaction, and correct grading provide significantly better durability and longevity.
Final Thoughts
A sunken driveway at the garage entrance is a common issue caused by settlement, ground movement, and repeated vehicle load. Addressing it early with a proper asphalt lip or ramp repair can restore function, improve safety, and extend the life of your driveway without the cost of full replacement.
