How to Treat Concrete Spalling

August 5, 2026

Concrete is one of the most durable building materials available, but even the strongest concrete is not immune to damage over time. One of the most common forms of concrete deterioration is spalling—a condition that can affect the appearance, safety, and longevity of concrete surfaces. Whether it occurs on a residential garage floor, commercial walkway, warehouse floor, or industrial workspace, recognizing the early signs of spalling can help property owners protect their investment before the damage becomes more extensive.


At PROtective Coatings of Southern Colorado, we help homeowners and businesses preserve concrete surfaces with professional repair solutions and high-performance concrete coating systems designed to improve durability and long-term performance.


What Is Concrete Spalling?

Concrete spalling occurs when the surface layer of concrete begins to chip, flake, crack, or break away. In its early stages, spalling may appear as small pits or shallow surface defects. As the condition progresses, larger sections of concrete can separate from the underlying slab, leaving rough, uneven areas.


While spalling often begins as a cosmetic issue, it should not be ignored. As more of the concrete surface is exposed, the slab becomes increasingly vulnerable to moisture intrusion, additional cracking, and accelerated deterioration.

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What Causes Concrete Spalling?

Several factors can contribute to concrete spalling, and in many cases, multiple conditions work together over time.



Moisture Intrusion

Concrete is naturally porous, meaning it absorbs water through tiny capillaries within the material. When moisture penetrates the surface, it can weaken the concrete from within. Repeated wetting and drying cycles gradually stress the concrete and may contribute to surface deterioration.


Freeze-Thaw Cycles

Southern Colorado experiences seasonal temperature fluctuations that can be particularly challenging for exposed concrete. Water that enters the concrete expands as it freezes and contracts when it thaws. This repeated expansion and contraction creates internal pressure that can eventually cause portions of the surface to crack and separate.

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Improper Installation

Concrete that was improperly mixed, finished too early, or cured incorrectly may be more susceptible to premature spalling. Likewise, inadequate surface preparation before applying coatings or overlays can reduce their long-term performance.


Deicing Chemicals and Chemical Exposure

Certain deicing salts and harsh chemicals can accelerate surface deterioration when repeatedly exposed to untreated concrete. Automotive fluids, industrial chemicals, and other contaminants may also contribute to long-term wear if the concrete is left unprotected.



Everyday Wear

Heavy vehicle traffic, dropped tools, forklifts, machinery, and years of foot traffic all place stress on concrete surfaces. Over time, abrasion can wear away weakened areas, making existing spalling worse.

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Why Prompt Repairs Matter

Ignoring spalling rarely improves the situation. Once the protective surface of the concrete has been compromised, moisture and contaminants can penetrate even deeper into the slab.


As deterioration continues, repairs often become more extensive and expensive. Uneven surfaces may also create tripping hazards in commercial or residential settings, making early intervention an important part of protecting both the property and its occupants.



Addressing minor damage promptly often allows repairs to be completed before more significant structural issues develop.

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How Is Concrete Spalling Treated?

The appropriate repair method depends on the severity and underlying cause of the damage.


The first step is identifying and correcting the conditions that caused the spalling whenever possible. Damaged or loose concrete is then removed to create a sound surface for repair. Specialized repair materials can be used to restore the affected areas, creating a smooth and durable substrate.


Once repairs have been completed, applying a professionally installed concrete coating can help protect the repaired surface from future moisture intrusion, stains, abrasion, and everyday wear.



High-performance coating systems provide an additional layer of defense while also improving the appearance of the finished floor. Depending on the application, homeowners and businesses may choose decorative finishes, slip-resistant textures, or industrial-grade protective systems that are designed for demanding environments.

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Protecting Your Concrete for the Future

Concrete is built to last, but long-term durability depends on proper maintenance and protection. Understanding the causes of concrete spalling allows property owners to recognize problems early and take action before small surface defects become major repairs.



At PROtective Coatings of Southern Colorado, we provide expert concrete repair and premium coating solutions for residential, commercial, and industrial properties. If you’ve noticed flaking, chipping, or deteriorating concrete, our experienced team can evaluate the condition of your surface and recommend a solution that restores its strength, appearance, and long-term performance. Contact us today to learn how our professional concrete coating systems can help protect your investment for years to come.

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Narrow alley between houses with a sidewalk, red porch, and leafless trees in a residential area
Cracked pink stucco wall with peeling plaster and a dark rectangular opening
Blue house with a garage and a blue pickup truck parked in the driveway under spring trees
A warehouse aisle lined with tall shelves stacked with boxes and containers.
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