A sunken driveway section can often be raised back toward level through concrete leveling if the slab is still in reasonable shape, or it can be removed and replaced if it is badly cracked or the base needs work. The best option depends on why the section sank and the condition of the concrete.
Sunken sections are common where driveways meet garages, sidewalks or the street. They can create trip edges, direct water toward the house and get worse over time, so they are worth looking at.
Why Driveway Sections Sink
Driveway slabs usually sink because the material beneath them has settled or washed away. Water from downspouts or poor drainage, soil that was not well compacted and freeze-thaw movement during Michigan winters can all contribute. A contractor will try to identify the cause before recommending a fix.
Sections near the garage and along edges are especially common trouble spots, since they often sit on backfilled soil or catch runoff from the roof and yard.
Leveling as an Option
Concrete leveling lifts a sunken slab by filling the space beneath it. It can work well when the slab is mostly intact and the cause of settlement can be managed. Leveling is often less disruptive than replacement, though it does not repair cracks or surface damage in the slab itself.
It can also be a good fit when you want to keep the existing driveway in place for now and avoid the time a new section needs to cure.
When Replacement Makes More Sense
If the sunken section is broken into several pieces, has severe surface deterioration or sits on a base that needs to be rebuilt, replacing that section may give a better result. Replacement also allows grading and drainage to be corrected at the same time.
Sometimes a section that has sunk and cracked badly will crack further during lifting, so the condition of the concrete is part of the decision.
A replaced section may not match the color of the older driveway right away, which is worth keeping in mind if appearance matters to you.
Fixing the Water Problem
Whichever option fits, drainage should be part of the conversation. Redirecting downspouts, correcting grading and sealing open joints can help keep the same section from settling again. Without that step, even a good repair may face the same conditions that caused the original settling.
Watching how water moves across the driveway during a heavy rain can also give useful clues about where it is collecting or running under the slab.
If part of your driveway has dropped, a closer look can show whether leveling or replacement fits. Learn about our concrete driveway repair service in Kalamazoo, or call (269) 404-2457 to set up an evaluation.
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