
- Choose your concrete repair product. Concrete surfaces cannot be repaired with concrete. Instead, use a concrete repair mix; these are readily available at home centers and online. ...
- Prepare the cracked area for patching. First, use a small hammer and chisel in combination to knock away any cracked, crumbling, or loose concrete. ...
- Fix the concrete crack with your selected repair product.
How do you keep a concrete driveway from cracking?
- Use kneepads to cushion your knees if you have to kneel to make a lot of repairs.
- To use the driveway as soon as possible, choose a rapid or fast-set crack filler.
- Some concrete patching compounds will harden in a few hours, but it make take days or a week for other kinds to cure and dry. ...
What are the steps to repaving a driveway?
- The best kind asphalt to use for a residential driveway is HL3.
- Order enough asphalt for 2.5 inches of thickness. ...
- Ensure you hire an experienced paver to apply the asphalt for this part (the asphalt must be applied when hot, you must pave it quickly!). ...
- Apply the asphalt in vertical paths, from the top-down.
How do you fill a crack in concrete?
- Prepare the sealant bottle as per manufacturer’s instructions (usually, shake well then snip off the nozzle
- With a steady hand, follow the line of the crack with the nozzle, gently squeezing out the sealant
- Go over the line with a putty knife, smoothing the ribbon of sealant into the surrounding concrete
When to repair or replace your driveway?
Your concrete driveway may be damaged if:
- There are cracks, splits, or breaks
- Your driveway isn’t clearing water or draining properly
- The seal or finish is corroded or worn away
- The base/foundation is unstable
- It is “too old” or beyond its lifespan

Should I repair cracks in concrete driveway?
Consider calling a professional to repair jagged cracks over an inch wide, especially if they are higher on one side than the other due to heaving or sinking. A section or sections of the driveway may need to be broken up, removed and re-poured.
Can driveway cracks be repaired?
Fill/Repair Concrete Driveway Cracks. To fill hairline concrete cracks, you can usually use a patching compound to make the repair. First apply a concrete bonding adhesive or primer/additive to create the best bond possible between the old surface and the patching material.
How do you permanently fix cracks in concrete?
0:142:21How to Repair, Seal and Waterproof Concrete Cracks - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing a chisel and hammer wind the crack to a minimum of one quarter inch. And break away anyMoreUsing a chisel and hammer wind the crack to a minimum of one quarter inch. And break away any deteriorating concrete the edges of the crack should be vertical or beveled in an inverted V.
What is the best product to fix cracks in concrete?
Best Concrete Crack Repair Epoxy: RUST-OLEUM Concrete Patch and Repair. If you are after the best concrete crack repair epoxy, then Rust-Oleum is always a top brand to consider. This two-part epoxy concrete repair kit is the ultimate option for high-strength and durability.
How do you repair cracks in a driveway yourself?
1:194:48How to Fill Driveway Cracks - Driveway Crack Filler - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow if you have a crack that's deeper than the inch you can put a little sand in this and bring itMoreNow if you have a crack that's deeper than the inch you can put a little sand in this and bring it up to within an inch or a half an inch of the surface.
How do I fill a large crack in my driveway?
1:162:22How To Fill Asphalt Gaps and Cracks - Ace Hardware - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing a caulk tube of crack filler. This is a good idea if you just have maybe one or two cracksMoreUsing a caulk tube of crack filler. This is a good idea if you just have maybe one or two cracks that are probably less than an eighth of an inch wide. And an eighth of an inch deep.
Does Flex Seal work on concrete cracks?
Flex Seal can be used on almost every surface: wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, drywall, rubber, cement, and vinyl. Plus, it won't sag or drip in the summer heat, and it won't crack or peel in the winter cold. It even prevents corrosion.
What's the best material to fill cracks in concrete driveway?
Concrete crack sealants and caulks are the most common product used to fill cracks in concrete. They come in squeeze tubes and can be applied right into the crack with a caulking gun. Both do a good job of keeping out water and bugs.
Are driveway cracks normal?
Cracking is a normal occurrence when it comes to concrete driveways unless it's excessive and it happens very soon after installation. Cracks will need to be sealed to prevent further damage which is part of the ongoing maintenance of a concrete driveway that will need to be performed on a regular basis.
How much concrete cracking is acceptable?
1/8 inchA crack in a slab of 1/8 inch or less is typically a normal shrinkage crack and not a cause for concern. If the crack is larger or growing larger (an “active” crack), or one side of the crack is higher than the other, then you may need to have the work reviewed by a structural engineer.
Why does my concrete crack?
These can be caused by everything from tree roots and movement of the soil to freezing and thawing cycles in the winter. Rather than breaking up the slab and pouring a new one, you might want to consider repairing it using Quikrete Concrete Resurfacer.
How to smooth out cracks in a concrete floor?
Make the mixture a thick consistency, and pour in on the cracks. Use a flat edge trowel to force the mixture deep into the cracks. Then smooth out the surface. After allowing the material to dry overnight, a much thinner batch of resurfacer is mixed up.
What is self leveling caulk?
Self-leveling is just what it sounds like. It is a thinner material and will flow to fill up the gap between your concrete slabs nicely. It finishes with a nice surface and doesn't require any smoothing afterward. However, self-leveling caulk can run out through the ends of a crack, or through any gaps underneath where you caulk. So you must make sure you've got a pretty well-sealed area for the caulk before you put it down. It cannot be used on any vertical surface either. Typically, if your job is larger, self-leveling caulk is the way to go as it doesn't require smoothing.
What is non sag caulk?
Non-sag caulk is a bit thicker, and will generally stay in place once you put it down. This can sometimes be used as a "dam" at the end of cracks that you then fill in with self-leveling caulk. It can also be used to fill cracks that go vertically (like cracks that might go from a driveway to a pored concrete curb.)
How to settle sand in concrete?
Tapping the concrete with a 2x4 can help settle the sand into all the voids. Like the backer rod, leave the sand at least 1/2" below the surface of the concrete. Once the backer rod is installed, or the crack is small enough to not need it, it's time to lay down your caulk.
Can you put caulk down on concrete?
It's actually best to keep it slightly lower than the concrete surface (as indicated in the illustration.) If you are using non-sag, then after you put your caulk down be sure to smooth it out with soapy water. You'll want to do this right away before the caulk has a chance to set up.
Can you caulk a crack in a concrete driveway?
If water is flowing under your driveway, it is only a matter of time before the slabs will begin to sink. This is precisely why we always recommend caulking the cracks and joints after we level your concrete slabs.
Can you move a slab in a driveway?
Depending on how out of level your driveway is , this could be simply moving one slab, or it could involve lifting and leveling nearly every slab in the driveway. Once the slabs are leveled with each other, then the cracks or expansion joints are filled with a flexible caulk to keep water from flowing under the slab.
Can a concrete driveway crack be repaired?
Concrete Driveway Crack Repair Basics. Concrete driveway crack repair is not all that different than any other concrete crack repair, except for one big difference; the size of the cracks. Because driveway slabs are normally much bigger than sidewalks and other concrete areas, the cracks can be longer, and oftentimes wider.
What Is the Average Lifespan of a Concrete Driveway?
A concrete driveway that is well cared for should last for around 25-30 years. These driveways last longer than their asphalt counterparts, but several variables impact their lifespan.
How to Maintain Your Driveway
If you want a long-lasting driveway, maintenance is key. To keep your driveway in the best condition, catching issues early on prevents bigger problems from occurring.
What Causes Driveway Cracks?
Driveway cracks occur for many reasons. Many of these causes have the potential to lead to big problems. Knowing what to look for can help you avoid serious damage.
How to Repair a Cracked Driveway
If you’ve noticed cracks in your driveway but aren’t sure how to repair them, there are several methods to consider. The best method for your situation depends on several factors, such as the type of cracks, source of the problem, and level of damage.
DIY Repair vs. Professional Help
So you’ve identified cracks in your concrete driveway, but what now? While some cracks are easy to repair on your own, like vertical cracks, hairline cracks, and diagonal cracks, other problems are better left to the professionals. Call a professional if you discover:
Avoid Costly Concrete Problems, Hire a Professional
If the cracks in your driveway are becoming more than a minor issue that you can’t fix with DIY poly injecting, it may be time to seek help from a professional. Small problems can grow into something costly if left alone for too long.
What is the best material to fill cracks in concrete?
Options include epoxy compounds, latex patching material, and mortar mixes. This last option works best to fill large cracks (or chipped edges), while the other products are suitable for cracks in concrete that are ⅛-inch wide or narrower.
How long does concrete last?
Installations of concrete can last hundreds of years, but sooner or later, most end up developing small cracks, gaps, holes, and crevices. If your concrete path, patio, or driveway has begun to show its age, make the necessary repairs sooner rather than later.
How long does it take for a concrete patch to cure?
Finally, smooth the patch so that it’s level with the surrounding concrete. Let it cure for about two hours, then cover the area with plastic sheeting to keep it moist.
Can cracks in concrete ruin curb appeal?
They are not only a tripping hazard, but cracks in your concrete patio, driveway, or walkway can really compromise the curb appeal of your home. You've let these imperfections linger long enough. Here's how to fix them—easily! Installations of concrete can last hundreds of years, but sooner or later, most end up developing small cracks, gaps, ...
Project Safety
When learning how to fix driveway cracks, you should take some common safety precautions.
How to Repair Crazing in Concrete
Very fine surface cracks, or crazing, occur when a concrete driveway dries too fast. They usually appear soon after it's poured. These fine surface cracks are often cosmetic and not signs of serious structural damage.
Types of Concrete Fillers and Mixes
Some masonry crack fillers come ready-to-use in pourable bottles or tubes. Some tubes are designed to be used in a masonry caulk gun while others have nozzles that let you squeeze the filler directly into the cracks.
Tips for Filling Concrete Cracks in Driveways
To use the driveway as soon as possible, choose a rapid or fast-set crack filler.
When to Repair and When to Replace a Broken Concrete Driveway
Hairline cracks or cracks under 1/4-inch wide may not indicate serious underlying damage, but if water gets into them and repeatedly freezes and expands, and vehicles continue to drive over them, the cracks can get bigger and the problem can worsen. These cracks can usually be repaired.