How To Fix Cracks In Your Driveway
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That small crack in your driveway you’ve been ignoring? It has a way of becoming a big, expensive problem if you let it. Driveway cracks aren't just an eyesore; they're an open invitation for water to seep underneath, erode the foundation, and turn a simple repair into a full-blown replacement project. In colder climates, that water freezes and expands, making cracks even wider in a process known as the freeze-thaw cycle.
The good news is that catching and fixing these cracks early is a manageable DIY project that can save you a ton of money and extend the life of your driveway. While major driveway repairs can cost thousands, Forbes notes that professional concrete repairs can range from $300 to over $4,000. In contrast, a DIY fix for minor cracks can often be done for under $50.
So, where do you start? The right repair method depends entirely on your driveway’s material—asphalt, concrete, or pavers—and the size of the cracks. Don’t worry, we’ll walk you through it. Think of us as your expert on the line, guiding you step-by-step.

Before you buy any materials, you need to play detective. A proper inspection will tell you exactly what you’re dealing with and what kind of repair is needed. Grab a notebook, a measuring tape, and let’s take a walk.
Once you have a good understanding of the damage, you can figure out the best plan of attack based on your driveway type.
Asphalt is flexible, but it's still prone to cracking from sun exposure, temperature changes, and heavy loads. The key is to distinguish between minor surface cracks and deep structural ones.
If you're dealing with small, shallow cracks, you’re in luck. This is a straightforward DIY fix that will prevent them from growing.
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If you see wide cracks (over 1/2 inch) or a pattern that looks like an alligator's skin, a simple filler won't solve the problem. This type of cracking indicates that the foundation underneath your driveway has failed. Water has gotten into the base layer and weakened it, causing widespread damage.
At this point, a DIY repair is just a temporary bandage. The cracks will reappear quickly. This is when it's time to call in a professional paving contractor. They can assess the base failure and determine if a section needs to be cut out and replaced or if the entire driveway needs repaving.
Concrete is strong but rigid, so cracks from soil settlement, heavy loads, or shrinkage during curing are common. As with asphalt, the size of the crack matters.
These tiny cracks can often be sealed to prevent water from getting in and making them worse.
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If a crack is wider than 1/4 inch, runs the full depth of the slab, or if one side of the crack is higher than the other, you're looking at a structural issue. This usually means the soil underneath has shifted or settled, and the concrete slab is no longer properly supported.
DIY fillers can't fix this. You'll need to contact a professional concrete contractor. They may recommend solutions like "slab jacking" (injecting a grout mixture underneath to lift the slab back into place) or, in severe cases, replacing the entire section of concrete.
With paver driveways, the problem usually isn't with the pavers themselves but with the base or the joint sand between them.

If you have a few pavers that are loose, rocking, or sitting lower than the others, the fix involves resetting them and refilling the joints.
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If you have several pavers that are physically broken or cracked, it could be a sign of a failing base layer. While you can replace individual pavers, if the problem is widespread, it’s best to consult a hardscape professional. They can diagnose if the base was improperly installed and recommend a long-term solution.
Fixing small driveway cracks is a satisfying project that protects your home’s value and curb appeal. By taking action now, you’re preventing a small issue from becoming a massive headache.
Feeling empowered? There's a whole world of home maintenance you can conquer. For more simple DIY guides, expert advice, and a direct line to trusted professionals for those jobs that are just too big, download the Casa app today. Casa is your partner in homeownership, putting the power to manage, maintain, and repair your home right in the palm of your hand.