What Causes a Gap Between Your Driveway and Garage?

Your driveway and garage floor should create a relatively smooth transition. If you notice the driveway pulling away, sinking, or creating a noticeable lip near the garage, the problem may be happening underneath the concrete.

For Michigan homeowners, changing soil conditions, water, and seasonal weather can all contribute to concrete settlement. Understanding what's causing the gap can help you determine whether the driveway can be repaired before the problem gets worse.

Why Does a Gap Form Between a Driveway and Garage?

In many cases, the garage floor hasn't moved. Instead, the driveway slabs immediately outside the garage have settled or shifted. Concrete is heavy and depends on the soil beneath it for support. If that soil settles, washes away, or develops voids, the concrete above can begin to sink.

Common causes include:

• Soil settlement: Fill soil beneath a driveway may gradually compact over time.
• Water and erosion: Rain and snowmelt can travel through open joints and wash away supporting soil.
• Freeze-thaw cycles: Michigan's changing temperatures can cause soil to freeze, expand, thaw, and shift.
• Poor drainage: Downspouts, grading, or pooling water can repeatedly saturate the soil around a driveway.
• Unsealed joints: Open spaces between slabs give water an easier path beneath the concrete.

The result may be a widening gap, uneven slabs, cracks, or a noticeable bump every time you pull into the garage.

Is a Gap Between the Driveway and Garage a Problem?

A small joint between the driveway and garage can be intentional. The bigger concern is when that space widens, drops, or becomes uneven. Once water has an easy path beneath the driveway, erosion can continue. As more support is lost, additional sections of concrete may settle.

Signs to watch for include:

• A driveway sitting noticeably lower than the garage floor
• A growing gap between the driveway and garage
• Water collecting near the garage
• Cracks spreading from the joint
• Uneven slabs or trip hazards
• A noticeable bump when entering or leaving the garage

These symptoms don't necessarily mean you need a new driveway. If the concrete itself is still in good condition, professional concrete repair may be able to address the settlement.

Repairing a Settled Driveway in Walled Lake, MI

A Walled Lake homeowner noticed that the concrete near their garage had gradually become uneven. What started as a small difference between the driveway and garage floor had become more noticeable when pulling vehicles in and out. They were also concerned that the open joint was allowing rainwater to reach the soil beneath the slabs.

Rather than replacing an otherwise solid driveway, the homeowner wanted to address the settlement and protect the concrete they already had. After evaluating the driveway, an Ayers System Design Specialist recommended lifting and stabilizing the settled slabs and sealing vulnerable joints to help keep water out.

How Can a Sunken Driveway Be Repaired?

When a driveway is still in repairable condition, the solution may involve addressing both the settlement and the open joints that allow water beneath the concrete. At Ayers, a concrete repair plan may include:

PolyLevel® Concrete Leveling: Lightweight polyurethane foam is injected through small holes in the concrete. As it expands beneath the slab, it fills voids, stabilizes the soil, and can lift settled concrete toward its original position.

NexusPro® Joint Sealant: Cracks and joints are sealed with a flexible, durable sealant designed to help prevent water from reaching the soil beneath the concrete.

Together, lifting and sealing address more than the appearance of an uneven driveway. They help correct the underlying settlement while protecting the repaired area from additional water intrusion.

Can You Repair a Driveway Instead of Replacing It?

Often, yes. A driveway doesn't necessarily need to be torn out simply because some slabs have settled. Concrete leveling may be an option when the slabs are structurally sound but have become uneven because the soil beneath them has shifted or eroded. Severely deteriorated, crumbling, or extensively damaged concrete may require replacement.

The best way to know is to have the driveway evaluated and determine what's actually causing the problem.

Don't Ignore a Growing Gap

If the space between your driveway and garage is getting larger, the concrete feels uneven, or water is disappearing into an open joint, addressing the problem early can help prevent additional settlement.

Ayers provides professional concrete repair throughout Walled Lake and communities across Michigan and Northern Indiana. Get a free estimate to find out what's happening beneath your driveway and whether concrete leveling and joint sealing are the right solutions for your home.