Is Sealing Concrete Necessary for Exterior Surfaces?

April 8, 2024

Exposure to harsh elements can cause porous concrete surfaces to be damaged over time. This raises the question: Is sealing concrete necessary for exterior surfaces?


Whether it's driveways, sidewalks, or garages, sealing concrete surfaces is a surefire way to make your exterior surfaces durable and stand the test of time. By sealing concrete surfaces, homeowners can safeguard their investments while reducing the need for costly repairs and replacements.


Explore where concrete sealing is applicable, the benefits it provides, and whether concrete sealing is necessary to maintain the longevity and appearance of your outdoor concrete structures.

Sealing Exterior Concrete: What It's All About?

Concrete sealing is the process of applying a protective coating to concrete surfaces to shield them from damage caused by moisture, chemicals, oil, and weathering. This protective layer helps prevent staining, discolouration, chemical damage, cracks, spalling, and other forms of deterioration.


It involves stripping off any old sealant, if there is any, from the surface of the concrete and preparing it for a new coat. The new sealant is applied section by section and brushed into the surface to ensure full coverage. This meticulous process helps to lock the sealant in place, ensuring long-lasting protection.


Sealing concrete surfaces typically utilises specialised sealant products that form a protective layer on the surface of the concrete. These sealers can be classified into different types based on their composition and desired outcome, including epoxy sealants, silicon-based sealants, and many more.

On What Exterior Surfaces Is Concrete Sealing Necessary?

Let's explore some common exterior areas where sealing concrete is particularly necessary.


A. Driveways

Driveways endure heavy vehicle traffic, exposure to oil leaks, and constant weather changes. Sealing the driveway surface helps protect against stains, cracks, and surface deterioration caused by these factors.


B. Patios

Patios are often subjected to foot traffic, furniture placement, and exposure to the elements. Sealing the concrete safeguards patio surfaces against moisture penetration and UV damage.


C. Sidewalks

Sidewalks are high-traffic areas exposed to pedestrian activity and environmental elements. Sealing concrete sidewalks helps prevent surface wear, cracking, and staining caused by foot traffic and exposure to debris, and dirt. It also reduces the risk of trip hazards. 


D. Pool Decks

Pool decks are constantly exposed to water, chlorine, and sunlight, making them prone to discolouration, erosion, and surface degradation. Sealing concrete pool decks creates a protective barrier that prevents water absorption and chemical damage.


E. Garage Floors

Garage floors are susceptible to oil spills, vehicle fluids, and heavy loads, leading to stains, cracks, and surface deterioration. Sealing the concrete garage floor provides resistance against these contaminants.

Is Concrete Sealing Necessary?

Here are several reasons why is concrete sealing necessary for various exterior surfaces:


Protection Against Water Damage

Sealing concrete creates a barrier that prevents water penetration. This is particularly important in areas with frequent rainfall or exposure to moisture, as water can seep into the concrete pores, leading to cracking, spalling, and other forms of damage.


Enhanced Durability

Sealed concrete surfaces are more resistant to wear and tear caused by foot traffic, vehicular traffic, and environmental factors. The sealer acts as a protective shield, reducing the risk of surface abrasion, erosion, and chemical exposure.


Stain Resistance

Sealed concrete surfaces are less susceptible to staining from oil, grease, food spills, and other substances. The sealer forms a barrier that prevents contaminants from penetrating the concrete, making cleanup easier and maintaining the surface's appearance.


UV Protection

Exposure to sunlight can cause concrete to fade, discolour, and degrade over time. Certain sealers contain UV inhibitors that help protect the concrete from the harmful effects of ultraviolet rays.


Prevention of Efflorescence

Efflorescence occurs due to the migration of soluble salts. Concrete sealing reduces the absorption of water and minimises the likelihood of efflorescence formation.


Ease of Maintenance

Sealed concrete surfaces are generally easier to clean and maintain compared to unsealed surfaces. Regular sweeping and mild cleaning can help keep the surface looking new and enhance its lifespan.


Colour Enhancement

Certain sealers are designed to enhance the natural colour of concrete, provide a decorative tint, and enrich the overall appearance of the surface. This can be particularly advantageous for decorative concrete finishes.


Protection Against Fading

Sealing concrete helps preserve the colour and finish of decorative elements, such as stamped patterns or exposed aggregates, by shielding them from fading caused by prolonged exposure to sunlight and weathering.

Professional Sealing Exterior Concrete Services

Ensuring the longevity and resilience of exterior concrete surfaces requires more than just a DIY approach. Professional sealing services are important in ensuring comprehensive protection against the harsh elements that outdoor concrete structures endure.


While sealing concrete may seem like a straightforward task, the expertise and techniques employed by seasoned professionals can make a significant difference in the effectiveness and longevity of the sealing. They are equipped with the knowledge and tools necessary to deliver superior results.


At Get Wet Cleaning Services, we take pride in our years of experience and expertise in professional sealing exterior concrete services. Whether it's a driveway, sidewalk, or decorative patio, we tailor our concrete sealing solutions to meet the specific needs of each project.


Trust us to deliver unmatched services and designs to preserve the charm and longevity of your home, including house washing and residential window cleaning. Connect with us to schedule a consultation and experience the difference that our professional services can make.

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