Driveway cracks are unattractive and give an unwelcoming appearance to your home exterior. Left unattended, cracks can grow and cause the driveway to crumble.
Luckily, repairing driveway cracks can be a relatively simple experience.
“Repairing small driveway cracks is an inexpensive and DIY-friendly project – just be sure you have the right materials on hand and follow instructions,” said remodeling contractor Danny Lipford, host of television and radio’s “Today’s Homeowner.”
Not all cracks can be handled by homeowners, though.
“If you have a crack where one side becomes uneven from the other, then you need to contact a professional to evaluate it. An uneven crack is a likely sign that moisture has seeped underneath the driveway and compromised the integrity of the foundation (soil),” Lipford said.
Crack causes
From a do-it-yourself point-of-view, the best way to deal with driveway cracks is to avoid them in the first place. Seal your driveway every few years. If you see cracks forming, fill them in immediately before the condition is worsened.
“It’s difficult to keep any type of driveway crack-free. The key is to address cracks as soon as they become visible,” Lipford said.
The most common causes of driveway cracks are “expansion and contraction with the changing temperatures,” Lipford said. “In addition, having an improper base or invasion of roots can be causes.”
If caught early when they are still small, most cracks in either asphalt or concrete driveways can take less than a couple of hours to repair, Lipford said. You could expect to spend $25 or less on materials.
If you want to avoid driveway cracks, Lipford said, “concrete with proper expansion/control points is your best bet.” Concrete driveways require less maintenance.

To repair and seal an asphalt driveway, Lipford suggests:
• Edge the driveway and remove any grass or dirt.
• Make sure it’s draining properly so rainwater doesn’t pool on the driveway.
• Clean the surface and any cracks with pressure washer.
• Use stiff broom to remove any remaining dirt or debris.
• Allow surface to dry.
• Use a cold-set asphalt repair patch material to fill any large cracks or holes and tamp it down.
• Fill small cracks with asphalt crack repair material in a caulking tube or bottle applicator.
• Apply a thin coat of paste patch material to pitted surfaces and allow it to set.
• Apply an oil spot primer to oil stains so the sealer will adhere properly.
• Allow the patching material to set.
• Use drill attachment to stir sealer thoroughly.
• Apply the sealer, starting from the high end of the driveway, and spread it out smooth with a squeegee.
• Allow sealer to dry (five to six hours), then apply a second coat if needed.
• Allow 24 to 48 hours drying time before driving on driveway.
To caulk and seal a concrete driveway, Lipford suggests:
• Take a screwdriver and scratch away at any debris in the crack.
• Then use a wire brush to clean it well.
• Use a whisk broom or a leaf blower to remove any debris.
• Then use a concrete repair caulk to fill in the crack and make it flat.
• For larger cracks (more than a quarter or three-eighths of an inch), add this step first: Place a backer rod – a soft, pliable non-gassing backup material – into the crack to control sealant depth. Use a screwdriver to push it down about one-half inch. Then caulk over it just like the smaller crack.