Direct answer: A driveway edge that sinks near the gutter is usually losing support underneath, not just wearing on top. Most of the time runoff from the gutter or curb line has been washing fines out of the base, and the surface starts dropping at the edge first.
Most likely: The most likely cause is water repeatedly dumping at one spot and eroding the base under the driveway edge.
Start by figuring out whether you have a shallow edge dip, a hollow spot with missing support, or full structural breakup with cracking. Reality check: once the base is gone, surface patch alone is usually temporary. Common wrong move: filling the depression while the downspout or gutter discharge is still soaking the same area.
Don’t start with: Do not start by smearing sealer or patch over the low spot before you know whether the base underneath is still solid.
The edge sits lower near the gutter, but the surface is mostly intact and feels firm underfoot.
Start here: Check where water is landing and whether the depression is only at the surface or extends under the slab or asphalt edge.
Tapping the area sounds drummy, or the asphalt edge gives a little when stepped on.
Start here: Treat this as lost support underneath until proven otherwise. Look for washout, gaps, or soil missing below the edge.
The driveway edge is sinking and the surface is splitting, raveling, or breaking off at the gutter side.
Start here: Separate simple settlement from structural failure. If the edge is breaking apart, patching alone is not the main repair.
The low spot deepens after heavy rain, or muddy water shows up along the curb or gutter line.
Start here: Focus on drainage first. Active runoff is usually feeding the damage and will ruin a cosmetic repair fast.
A concentrated stream of water at one corner or edge slowly carries base material away. The pavement drops where support disappears first.
Quick check: During rain, or with a hose test, see whether water lands right at the driveway edge instead of being carried away from it.
A hollow sound, edge movement, or a visible gap under the pavement points to missing support below the surface.
Quick check: Look along the side profile for an undercut area, probe gently at the edge, and tap the surface to compare solid and hollow sections.
Driveway edges fail early when they were poured or laid thin, or when the side soil has sloughed away over time.
Quick check: Compare thickness and support at a sound section farther back from the gutter. A thin feathered edge is a weak spot even without major runoff.
Cracking, raveling, or broken corners near the gutter often show up after the base has already moved or washed out.
Quick check: If the surface is cracked in a pattern that follows the sunken area, assume the base issue came first and the top layer is just showing it.
Most sinking at a driveway edge near a gutter starts with concentrated water, so confirm the water path before touching the pavement.
Next move: If you find water dumping right at the sunken edge, correct that drainage path first and then reassess the driveway damage. If water is not landing there now, keep going and check for an older washout or a weak edge that has already lost support.
What to conclude: A driveway edge rarely sinks for no reason. Water marks and wash patterns usually tell you whether runoff is the driver or just a bystander.
This separates a patchable low spot from a support problem that needs more than surface material.
Next move: If the area feels solid and the dip is shallow, you may be able to use driveway patch material after fixing the water issue. If it sounds hollow, moves, or breaks at the edge, plan on base repair or partial replacement instead of a simple top patch.
What to conclude: Solid pavement with a minor depression is a surface-level repair candidate. Hollow or moving pavement means the support underneath is compromised.
Depth and spread tell you whether you are dealing with a cosmetic dip, a localized repair, or a section that needs to be rebuilt.
Next move: If the dip is shallow, localized, and the surrounding surface is sound, a patch may buy time once drainage is corrected. If the low area is deep, spreading, or tied to cracking and breakup, skip cosmetic fixes and plan for excavation and rebuild of that section.
This is where homeowners waste money most often. The right material only works when the underlying condition matches it.
Next move: If the repaired area stays firm and water no longer hits the edge, you have likely addressed both the symptom and the cause. If the patch settles, cracks, or debonds quickly, the base underneath is still moving or washing out.
Once you know whether this is surface wear or lost support, the next move should be clear and specific.
A good result: You end up with a repair plan that matches the actual failure instead of covering it up for a few weeks.
If not: If you still cannot tell whether the edge is supported, treat it as a base problem and have the section evaluated before patching.
What to conclude: The durable fix is the one that stops the water and restores support where support is gone.
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Only if the driveway edge is still solid and the depression is shallow. If the area sounds hollow, moves, or keeps sinking, filling the top is usually temporary because the support underneath is gone.
A hollow sound when tapped, a visible gap under the edge, movement underfoot, or fresh settlement after rain all point to missing support below the surface.
Very often, yes. When a gutter or downspout dumps water beside the driveway, the runoff can slowly carry base material away and the edge starts dropping first.
Not reliably if the edge is undercut or unsupported. Thin patch at a weak edge tends to crack loose. A solid concrete edge with only minor surface wear is one thing; a settled or undermined edge usually needs rebuilding.
Call for help when the edge is hollow, broken, spreading, or unsafe, or when the repair clearly needs excavation and base compaction. That is the point where a surface patch stops being the real fix.