How to Identify and Fix Concrete Cracks: A Homeowner's Guide

 

Concrete is one of the most durable materials used in outdoor construction, but like all materials, it’s susceptible to wear and tear over time. Whether it's your driveway, walkway, pool deck, or patio, small cracks in concrete can appear for various reasons—shifting soil, weather fluctuations, or even simple wear from everyday use. While cracks might seem like a minor issue at first, addressing them early can save you time and money in the long run, preventing the need for larger, more costly repairs down the road.

This guide will help you identify the cause of small cracks, understand when they are cosmetic versus structural, and provide tips for repairing minor cracks yourself or knowing when to call in a professional.

Identifying Cracks in Concrete Surfaces

Concrete cracks are common, and it’s essential to assess each crack individually to determine its cause and severity. Start by inspecting the crack closely and assessing its location, width, and depth. Here's a breakdown of what to look for:

1. Driveways: Cracks in driveways are often caused by the pressure of heavy vehicles, temperature changes, or improper installation. Look for cracks that are spreading outward, slabs that are sinking, or cracks growing larger over time. Shifting soil or poor drainage around the driveway may contribute to the problem.

2. Walkways: Cracks in walkways can appear due to similar causes, like temperature fluctuations or soil movement underneath. Tree roots growing beneath the walkway can also lead to cracks as they exert pressure on the concrete. These cracks might start small but can become trip hazards if left unaddressed.

3. Pool Decks: Pool decks are exposed to moisture, pool chemicals, and frequent foot traffic, all of which can cause the concrete to crack over time. Be particularly cautious about cracks near the edges or where the deck meets the pool’s surface, as water infiltration can make the damage worse.

4. Patios: Like pool decks, patios are subjected to weather changes, heavy furniture, and constant exposure to outdoor elements. Cracks here can also result from settling ground, moisture accumulation, or the expansion of freezing water in colder climates.

 

Cosmetic vs. Structural Cracks

Not all cracks in concrete are equal. It’s important to distinguish between cosmetic cracks and those that might indicate more serious structural problems.

Cosmetic Cracks

These cracks are usually small, hairline or shallow, and do not affect the structural integrity of the concrete. They often appear due to the natural aging of concrete, such as from surface shrinkage or minor settling of the ground beneath. 

Structural Cracks
Structural cracks, on the other hand, pose a risk to the stability of your concrete surface. They can appear on the ground or on the home itself and often appear larger and deeper than cosmetic cracks, more than 1/4 inch wide. They are usually the result of foundation issues, soil movement, or significant weight load. These cracks will continue to grow over time and cause misalignment in the concrete's surface. Structural cracks require professional evaluation and repair to prevent further damage. Repair options may include injecting a polyurethane-type material, like LRE Foundation Repair's PolyLevel technology, to stabilize the crack. In severe cases, lifting the concrete or replacing sections of concrete may be necessary. 

 

 

When to Call a Professional

If you notice the following signs, it’s time to bring in a professional, and LRE Foundation Repair is here to help:

• The cracks are large, wide, or continue to expand.
• You notice misalignment or unevenness in the concrete surface.
• Other signs of foundation problems, such as sagging floors or interior wall cracks, exterior window cracks, and others accompany the crack.
• The crack is causing water infiltration that could lead to further damage.

The professionals at LRE Foundation Repair can assess the underlying cause of the crack and apply the right method to repair it. Sometimes, fixing structural cracks may require extensive work like underpinning, poly injection, or using other specialized concrete restoration techniques.

 

 

Fixing small cracks as soon as you notice them is crucial for maintaining the long-term health of your concrete surfaces. Minor cracks, if left unchecked, can quickly worsen due to water infiltration, freeze-thaw cycles, and continued pressure from daily use. Over time, this can lead to larger cracks, uneven surfaces, and even structural failures that require much more extensive (and expensive) repairs. By addressing these issues early, you can extend the lifespan of your concrete and maintain its aesthetic appeal. Whether you’re repairing a small crack yourself or seeking professional help for larger problems, timely action is key to keeping your concrete surfaces strong and stable.

Concrete cracks are a common concern for Florida homeowners, but they don’t have to be a source of stress. With the right approach, our team can help you identify the cause of the crack, determine whether it’s cosmetic or structural, and fix minor issues before they grow into larger problems. By addressing cracks early, you ensure the longevity of your driveway, sidewalk, patio, pool deck, or foundation -- keeping your home looking great and functioning safely for many years to come. Call LRE Foundation Repair today for a free estimate in Orlando, Tampa, or Miami!