How-To & Tips · 4 min read

Concrete Cracks? Here's When to DIY and When to Call a Pro

Cracks showing up in your Birmingham driveway or patio? Before you reach for that patching compound – you know, the stuff that promises an easy fix – let's figure out what you can tackle on your own and when it's really best to call in the GAE Concrete Co. pros.

← Back to Blog Completed concrete repair work at a residential property in Birmingham, AL

Before You Start: Figure Out the Damage

Alright, let's get right to it. You've got a crack in your concrete. Maybe it's your driveway, a sidewalk, or that back patio you love so much. First thing you need to do is figure out what kind of crack you're actually dealing with. Not all cracks are the same, and knowing the difference will save you a lot of grief — and probably some cash, too.

Hairline cracks? Those really thin, surface-level ones that don't go all the way through? You can probably handle those yourself. They're usually just cosmetic, often popping up when concrete dries too fast or shrinks a little. Think of them like a scratch on your car; annoying, sure, but not a structural problem.

Then you've got wider cracks, say, a quarter-inch or more. Or cracks that are uneven, where one side of the slab is higher than the other. If you see chunks of concrete missing, or if the crack runs deep and you can tell the slab is actually moving, that's a whole different ballgame. That usually points to a bigger problem underneath, like soil settling or tree roots pushing things around. Especially with our red clay soil here in Birmingham, which can expand and contract quite a bit with heavy rains and dry spells, you see a fair bit of that, don't you?

What You Can (Probably) Fix Yourself

For those smaller, non-structural cracks, you've got some good options. This is where you can roll up your sleeves and get to work. You'll need a few things:

  • A good quality concrete crack filler or sealant: Don't just grab the cheapest stuff on the shelf. Look for something that's flexible and weather-resistant. You want it to move with the concrete a bit, not just crack again next week.
  • A wire brush and maybe a chisel: You really need to clean out the crack well. Get rid of all the loose bits, dirt, and debris. If you don't, your filler won't stick, and you'll be doing this again soon, trust me.
  • A caulk gun (if it's a tube product): Pretty straightforward, right?
  • Safety gear: Gloves, eye protection. Always.

Once it's clean and dry, apply the filler according to the directions on the product. Don't overfill it; you can always add a little more later. Smooth it out with a trowel or even your finger (with a glove on, obviously) to match the surrounding concrete. Let it cure. That's it. You've just extended the life of your concrete and made it look a lot better.

When to Call GAE Concrete Co. (or Another Pro)

Now, for those bigger problems I mentioned earlier – the wide, deep, or uneven cracks, or slabs that have sunk or heaved. That's when you need to pick up the phone. Here's why:

  • Structural issues: If your concrete is moving, it's not just an eyesore; it could be a trip hazard or even undermining the foundation of a nearby structure. Patching won't fix the underlying cause.
  • Slabjacking or leveling: If a slab has sunk, we can often lift it back into place using a process called slabjacking or mudjacking. We drill small holes and pump a material underneath to raise it. It's a lot less disruptive and expensive than tearing out and replacing the whole thing.
  • Large-scale replacement: Sometimes, the damage is just too extensive. If your driveway looks like a jigsaw puzzle or your patio is crumbling, a full replacement might be the most cost-effective and long-lasting solution. We've got the heavy equipment and expertise to do that right, from proper sub-base preparation to pouring and finishing. You don't want to mess around with that yourself; it's a huge job.

Look, I'm all for homeowners doing what they can to maintain their property. It saves you money and gives you a sense of accomplishment. But knowing your limits is key. Trying to patch a major structural crack is like putting a band-aid on a broken leg – it just won't hold up, and you'll end up spending more in the long run. If you're ever in doubt, just give us a call at GAE Concrete Co. We're happy to come out, take a look, and give you an honest assessment. No pressure, just good advice from folks who know concrete.

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