What’s the Difference Between Cracks and Joints?

Before we talk about solutions, let’s clarify the different types of separations you might see in your concrete driveway:

  • Control Joints: These are intentionally placed lines—either grooved during pouring or saw-cut after—that help control where concrete cracks as it cures and contracts. They’re necessary and expected.
  • Expansion Joints: These are wider gaps, typically at the edge of the driveway (where it meets the garage or street), allowing for natural expansion during hotter months. These joints help relieve pressure and protect the concrete from cracking due to movement.
  • Cracks: Unlike joints, cracks occur randomly due to settling, shifting soil, or unplanned stress. While they may seem harmless, they offer a direct route for water to penetrate beneath the slab.

The Problem with Unsealed Driveways: Why Moisture is the Enemy

When water finds its way into unsealed cracks and joints, it doesn’t just sit on the surface. It infiltrates the soil underneath your driveway. Over time, this moisture can:

  • Soften the soil: This weakens the support beneath your concrete.
  • Wash away soil: Creating empty spaces or “voids” under the slab.

These issues directly lead to:

  • Uneven settling of your driveway
  • More widespread cracking
  • Sections of your driveway sinking
  • Dangerous tripping hazards

In Columbus, our famous freeze-thaw cycles make this even worse. Water that seeps under your driveway freezes, expands, and then thaws and contracts. This constant movement puts immense stress on your concrete, contributing significantly to slab displacement and extensive long-term damage.

The Smart Solution: Professional-Grade, Flexible Sealants

Sealing your driveway isn’t just a quick fix with a tube of caulk. To truly protect your investment, you need professional-grade sealants designed to be:

  • Flexible: To move with your concrete as temperatures change.
  • UV-resistant: To withstand harsh sunlight without breaking down.
  • Long-lasting: Providing durable protection for years.

At SmartLevel Concrete, we trust NexusPro® – a leading silicone-based sealant. Here’s why it’s ideal for Ohio’s weather:

  • Withstands Ohio’s Seasons: NexusPro remains flexible in both scorching summer heat and freezing winter cold.
  • Outperforms Competitors: Unlike many polyurethane-based options, it won’t dry out, crack, or peel over time.
  • Prevents Debris Buildup: Sealing joints with NexusPro also stops dirt, stones, and grit from collecting inside, ensuring your joints can flex and perform as designed.

What Happens if You Ignore Driveway Cracks and Joints?

Leaving joints and cracks unsealed leads to:

  • Significant water infiltration and accelerated soil erosion.
  • A much higher chance of concrete slab settlement and sinking.
  • More extensive, costly repairs needed down the road (like concrete leveling).
  • A decrease in your home’s curb appeal and potential loss of property value.
  • Increased risk of trips and falls due to uneven surfaces.

When and How Often Should You Seal Your Driveway?

Most driveways should be inspected annually, especially after winter. If your driveway shows signs of:

  • Widening cracks
  • Noticeable settling
  • Debris buildup in joints

… it’s time to seal or reseal. A professional inspection can help determine whether sealing alone is sufficient or if your driveway needs leveling or concrete repair.

The Professional Sealing Process: What to Expect

If you schedule a professional driveway joint sealing, here’s what typically happens:

  1. Thorough Inspection: Our technician will carefully assess your entire driveway to identify all areas needing attention.
  2. Expert Cleaning: All cracks and joints are meticulously cleaned to ensure optimal adhesion for the sealant. This is a critical step often missed in DIY attempts.
  3. Precise Sealing: Our team applies the high-performance sealant evenly, filling each joint and crack with care.
  4. Smooth Finishing: The newly sealed areas are smoothed for a clean, attractive, and uniform appearance that blends seamlessly with your driveway.

This process is typically completed within a few hours, depending on the size of the driveway and the extent of the work needed.

FAQ: Driveway Crack and Joint Sealing

Q: How long does driveway joint sealing last?
A: High-quality sealants like NexusPro can last over 5 years with proper installation and minimal maintenance.

Q: Can I seal my driveway myself?
A: While DIY options exist, professional sealing ensures long-lasting results, proper joint preparation, and the use of high-quality, weather-resistant materials.

Q: Is it too late to seal my driveway if I already have cracks?
A: Not necessarily. Many cracks can still be sealed to prevent further water damage and soil erosion. A professional can assess whether leveling or repairs are also needed.

Q: How do I know if I need more than just sealing?
A: If you notice uneven slabs, tripping hazards, or water pooling, your driveway may require leveling or concrete repair in addition to sealing.

Your Trusted Columbus Concrete Experts

At SmartLevel Concrete, we specialize in concrete driveway repair and joint sealing in Columbus and surrounding areas. Our team uses professional-grade sealants like NexusPro to ensure long-lasting protection and a seamless look.

Explore our Driveway Repair Service

Concerned about your driveway?

Schedule your free, no-obligation inspection today.

Let our team help you prevent future damage and keep your driveway safe and strong year-round.

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