What Do You Spray on Concrete After Pressure Washing?

Nearly 80% of homeowners who pressure wash their concrete surfaces don't apply a post-treatment solution, potentially shortening the lifespan and aesthetic appeal of their driveways, patios, and walkways. We've found that applying the right solution after pressure washing can significantly enhance the durability and appearance of concrete surfaces.

From bleach mixtures to specialised concrete sealants, the choices vary widely in terms of effectiveness and purpose, whether it's for mould prevention, stain removal, or UV protection. However, selecting the most suitable post-treatment requires understanding the specific needs of your concrete surfaces and the long-term effects of these solutions.

We're here to guide you through this decision-making process, ensuring your concrete not only looks pristine immediately after washing but remains in top condition over time.

Stay with us to explore the best practices for post-wash treatments that promise to extend the life and beauty of your outdoor spaces.

Choosing the Right Sealant

Selecting the right sealant for your concrete surface is crucial, as it directly impacts the longevity and appearance of the area post-pressure washing. We've learnt that considering the type of concrete and its usage is the first step in narrowing down our options. For instance, a driveway demands a different level of protection compared to a patio, primarily due to the different environmental exposures and traffic each surface endures.

Delving into sealant selection criteria, we've found that evaluating the environmental conditions and the surface's exposure is essential. A sealant that offers UV resistance and durability is key to ensuring long-lasting protection against weathering and stains. Whether it's penetrating sealers for a natural look or epoxy sealers for a glossy finish, understanding the specific needs of our concrete surface is paramount.

Moreover, the benefits of professional consultation can't be overstated. Professionals bring a wealth of knowledge, understanding the nuances of each sealant type and how they interact with different concrete surfaces. Their expertise ensures that we select a sealant that not only meets but exceeds our expectations for protection and aesthetics. This step is vital in achieving the desired outcome and maximising the lifespan of our concrete surfaces.

Concrete-Specific Post-Wash Treatments

After pressure washing, it's crucial to dive into concrete-specific post-wash treatments to safeguard and enhance the surface's longevity and appearance. We know the importance of not only cleaning the surface but also preparing it to resist future damage and wear. That's why applying a concrete sealer is our first step. This acts as a protective layer, warding off moisture and contaminants.

When it comes to removing stubborn stains, choosing the right cleaner or degreaser specifically designed for concrete is key. These formulas penetrate deeply to lift and dissolve grime that standard washing can't touch. But our commitment to maintaining a pristine surface doesn't stop there.

We also recommend using a mould and mildew inhibitor to prevent their regrowth. This ensures the concrete remains cleaner and healthier for longer. For those looking to enhance the visual appeal of their concrete, applying a concrete brightener can revive the surface, eliminating any lingering discolouration.

Lastly, we utilise a concrete-specific waterproofing treatment. This extra step is vital for protecting against moisture intrusion, which can lead to significant damage over time. By following these concrete-specific post-wash treatments, we're not just cleaning; we're preserving and enhancing your concrete surfaces for the future.

Mold and Mildew Prevention Sprays

Having discussed the broader spectrum of post-wash treatments for concrete, we'll now focus on the critical role of mould and mildew prevention sprays in maintaining a clean and durable surface. Applying a mould and mildew prevention spray specifically designed for concrete surfaces is essential to inhibit future growth. It's important to select a spray that not only offers long-lasting protection against mould, mildew, and algae but is also safe for the environment, ensuring it won't harm surrounding plants or grass.

In terms of effectiveness comparison, not all prevention sprays are created equal. A spray with a non-corrosive formula is vital to protect the integrity of the concrete, preventing any damage that could compromise its durability. The application process is straightforward—ensure the spray is applied evenly and thoroughly to guarantee complete coverage.

Furthermore, we recognise the growing interest in natural alternatives. While conventional sprays are effective, exploring natural options can provide an eco-friendly approach without sacrificing effectiveness. These alternatives often rely on ingredients that are less harsh on the environment yet still provide a strong defence against mould and mildew formation on concrete surfaces.

Enhancing Concrete Durability

To enhance the longevity and resilience of concrete surfaces, it's crucial we apply a high-quality concrete sealer following pressure washing. This step not only safeguards the surface against moisture but also against stains and UV damage, offering long-lasting protection.

Before we dive into sealing, let's ensure we've prepared the concrete thoroughly for the best outcome.

Here are three essential steps to follow for enhancing concrete durability:

  1. Pre-treat Stubborn Stains: Utilise recommended cleaners to break down tough stains, mould, mildew, and grime. This ensures the surface is impeccably clean and ready for sealing.
  2. Choose the Right Concrete Sealer: Consider the concrete sealer benefits carefully. A sealer that offers protection against moisture, stains, and UV damage is ideal. The right product ensures your concrete remains in pristine condition for years.
  3. Apply a Post-treatment Solution: After sealing, using a post-treatment solution can reduce visible striping, eliminate remaining bacteria, and provide a uniformly clean surface. This step is crucial for achieving a professional and lasting finish.

Maintaining Surface Aesthetics

While enhancing concrete durability lays the foundation for long-term surface integrity, we must also prioritize maintaining surface aesthetics to ensure the concrete not only lasts but looks great over time. Applying a concrete sealer post-pressure washing is a critical step. This sealer acts as a protective barrier against moisture, stains, and UV damage, preserving the concrete's appearance and extending its life.

To further maintain aesthetics, we recommend a post-treatment using the same ratios and process as the pre-treatment. This strategy reduces visible striping and eliminates remaining bacteria, keeping the surface looking uniform and clean. For efficient and safe cleaning, incorporating a surface cleaner attachment when pressure washing is advisable. This equipment facilitates faster cleaning and helps prevent damage to the concrete.

Regular cleanings are essential to prevent build-up and preserve the beauty of your concrete surfaces. Scheduling these cleanings ensures that the concrete remains in top condition. Additionally, selecting the appropriate chemical solutions for pre and post-treatment is crucial. A mixture of bleach and warm water is effective for cleaning and whitening, enhancing the surface's aesthetics.


After pressure washing our concrete, we've discovered the importance of applying the appropriate post-treatment solution. Whether you're considering a bleach blend, a recommended detergent, or a specialised concrete cleaner, these measures are essential to prevent mould, improve durability, and preserve the surface's aesthetics.

By selecting the right sealant and adhering to the product's instructions meticulously, we can ensure our concrete remains clean, protected, and visually appealing. This is a straightforward yet efficient method to extend the life and beauty of our concrete surfaces.

At Andys Services, we offer the solution mentioned above and invite you to contact us for a free quote if you're located on the Gold Coast. Call us on 0403 282 191 or use our contact form for more information. We're here to help you keep your concrete in top condition.