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Sealing interlocking surfaces

How to seal interlocking surfaces

Important Interlock Sealing Tips and Tricks

Interlocking surfaces add a touch of elegance to outdoor spaces, enhancing curb appeal and providing a durable, visually appealing solution. However, to ensure their longevity and preserve their aesthetic charm, proper interlock sealing is crucial. Knowing how to preserve expansive investment is crucial to longevity and appearance to every home and business owner. Installing new interlocking driveway, walkway or backyard patio can cost a home owner up to $50.000 Canadian. Leaving this investment to chance is negligent and uneconomical. Just in few years, without proper maintenance, this expansive investment can be ruined. Leaving home owner with no choice but to rip everything out and repair the entire interlock surface. This could cost anywhere from couple thousand dollars up to the full replacement amount. But why?

Interlock Surfaces Can be Damaged if not maintained properly!


Unlike concrete and asphalt, interlocking is not a solid peace of rigid material, it is not glued and not secured to the soil, it is a kind of dry lay procedure where the ground gets levelled, underlayment sand spread around and compounded, interlock pavers added on top, polymeric sand added to fill the gaps and hopefully the entire pavers sealed with protective clear coat. 

This undergoing can last for decades if cared for properly, if not, weeds, ants and other cracks will let water through which will slowly but surely wash out underlayment sand under pavers, making pavers to shift and sink in. If this happens, there is no more saving, entire surface needs to be removed and redone.

Caring for interlocking means to have cleaning, sealing and adding polymeric sand schedules as recommended by professionals.



Here's a comprehensive guide on what to look for when sealing interlocking surfaces:

Surface Preparation: The Foundation of a Lasting Seal

Before sealing, thorough surface preparation is key. Cleaning the interlocking pavers or stones removes dirt, debris, and stains, allowing the sealant to adhere effectively. Pressure washing or using specialized cleaning agents ensures a clean and porous surface, setting the foundation for a lasting seal. Pressure washing is great way to clean interlocking surfaces, but be careful, worn pressure setting can mean that polymeric sand will be removed. Setting proper pressure is very important unless you wish to remove weeds and weed roots.

Type of Sealant: Choosing the Right Armor

Selecting the appropriate sealant is paramount. I know, many are tempted to buy their sealers at a local hardware store, this could mean, the pavers will not have the best protection available on the market. Many consumer level, hardware store quality is just fine, yet many times it is not the best product available. Commercial level sealers can be acquired at speciality stores where contractors shop. There are multiple reasons why professional contractors choose certain products over local hardware stores. The answer is quality. Contractors reputation and future jobs depend on the quality of products they use. No experience contractor will jeopardize the reputation and future jobs for cheap and low quality products.


There are two primary types: penetrating sealers and topical sealers. Penetrating sealers are absorbed into the interlocking surface, providing protection without altering its appearance. Topical sealers, on the other hand, create a protective layer on the surface, enhancing its color and providing a glossy finish. The choice depends on the desired aesthetic and level of protection.

UV Resistance: Guarding Against Sun's Harsh Rays

Interlocking surfaces are exposed to the elements, including the sun's UV rays. A high-quality sealant should offer UV resistance to prevent fading and discoloration over time. Ensuring the sealant provides robust protection against UV damage is crucial for maintaining the vibrancy of the interlocking surfaces.

Breathability: Allowing the Surface to Breathe

While sealing provides protection, it's essential to choose a breathable sealant. This characteristic allows moisture trapped beneath the surface to evaporate, preventing issues like efflorescence—white, powdery deposits that can mar the appearance of the interlocking surfaces. Breathability ensures a healthy interlock, free from moisture-related problems.

Slip Resistance: Balancing Safety and Aesthetics

Safety is paramount, especially in outdoor spaces. Look for a sealant that maintains or enhances slip resistance. This is particularly crucial around pools, patios, or other areas where the interlocking surfaces may be exposed to water. Prioritize sealants that provide a balance between safety and the desired aesthetic.

Longevity and Durability: Investing in a Lasting Shield

The goal of interlock sealing is to provide long-term protection. Choose a sealant known for its durability and longevity. Understanding the lifespan of the sealant helps in planning for future maintenance, ensuring the interlocking surfaces remain in optimal condition for years to come.

Professional Application: The Art of a Flawless Finish

Even the best sealant requires skilled application. Hiring professionals with expertise in interlock sealing ensures that the sealant is evenly applied, avoiding streaks or blotches. Professional application not only enhances the aesthetic result but also maximizes the protective benefits of the sealant.

In the world of interlocking surfaces, the right sealant is the unsung hero that preserves beauty and prolongs lifespan. By considering factors such as surface preparation, type of sealant, UV resistance, breathability, slip resistance, and professional application, you can unlock the secrets to effective interlock sealing. Invest in the care and protection of your interlocking surfaces, unveiling a world of enduring elegance.

For overall best results in interlock maintenance contact Como Maintenance Services to be your trusted interlocking maintenance partner.  With us, you can rest assured that your expensive belongings are in good hands and that the outcome will always meet and exceed your expectations, very first time, every time.

Contact Como maintenance services today and get a free estimate.

Phone:     905-392-0480


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