Leak Sealing

Concrete Leaking Solution: How to Fix Leaking Concrete Like a Pro

Concrete is a versatile and durable material used in various construction projects, but it’s not invincible. Over time, concrete structures can develop leaks, leading to potential damage and compromising the integrity of the building. In this article, we will explore effective and efficient solutions to fix leaking concrete, ensuring that your structures remain sound and protected for years to come.

Understanding the Causes of Concrete Leaks

Before diving into the solutions, it’s crucial to understand what causes concrete leaks. Common reasons include poor construction, cracks, aging, exposure to harsh weather conditions, and improper waterproofing.

Poor Construction and Workmanship

Faulty construction practices can create weak spots and vulnerabilities in the concrete, making it susceptible to leaks.

Aging and Wear

Over time, concrete undergoes wear and tear, reducing its ability to resist water penetration.

Cracks and Fractures

As concrete ages, it may develop cracks and fractures due to stress, settlement, or other factors, allowing water to seep through.

Weather Exposure

Extreme weather conditions, such as heavy rainfall or freeze-thaw cycles, can worsen existing cracks and accelerate water leakage.

Lack of Waterproofing

Insufficient or improperly applied waterproofing measures can lead to water infiltration.

Identifying Leaks in Concrete Structures

Before proceeding with the repair, it’s vital to identify the exact location and extent of the concrete leaks.

Visual Inspection

Carefully examine the concrete surface for visible cracks, discoloration, or signs of moisture.

Water Testing

Perform a water test by spraying water on the surface and observe if it seeps through or accumulates.

Moisture Detection Tools

Perform a water test by spraying water on the surface and observe if it seeps through or accumulates.

Effective Concrete Leaking Solutions

Once you have identified the leaks, it’s time to take action and fix them effectively.

Patching and Filling Cracks

Use suitable concrete patching materials to fill small cracks and prevent water from entering.

Injecting Sealants

For larger cracks or voids, injection sealants can provide a more robust solution to stop water infiltration.

Waterproof Coatings

Apply waterproof coatings, such as acrylic or polyurethane-based products, to create a protective barrier against water.

Concrete Overlays

Concrete overlays can be applied to the existing surface to enhance waterproofing and provide additional protection.

Installing Drainage Systems

In some cases, installing drainage systems around the concrete structure can divert water away, reducing the risk of leaks.

DIY vs. Professional Assistance

While some concrete leaking issues can be resolved with DIY solutions, complex and severe leaks may require professional assistance for long-lasting results.

Preventative Measures for Future Leaks

Prevention is key to avoiding future concrete leaks and maintaining the structural integrity of your building.


Perform regular inspections and maintenance to identify and address potential issues promptly.

Using Quality

Invest in high-quality concrete and construction materials to enhance durability and minimize vulnerabilities.

Proper Waterproofing during Construction

Ensure proper waterproofing measures are implemented during the initial construction phase.


Concrete leaking is a common problem that can lead to significant damage if left unaddressed. By understanding the causes and employing effective solutions, you can fix leaking concrete like a pro. Whether it’s patching cracks, applying waterproof coatings, or seeking professional assistance, taking the right steps can protect your concrete structures and extend their lifespan. 

Poly-Mor Canada Inc. is a leading provider of specialized construction and waterproofing services in Vancouver, Edmonton, Calgary, Winnipeg, Toronto, Halifax, and beyond. With a strong commitment to quality workmanship and customer satisfaction, Poly-Mor has earned a reputation for delivering innovative and effective solutions for concrete-related issues, including leaks and waterproofing challenges. Whether you need professional assistance in repairing concrete leaks or require preventative measures during construction, our team is equipped to handle projects of all sizes. Trust us for reliable and durable solutions to protect your valuable assets from water damage and ensure the longevity of your concrete structures.


While minor leaks can be fixed with DIY solutions, more complex issues may require professional expertise to ensure lasting results.

The cost of repairing concrete leaks varies depending on the severity of the issue and the chosen repair method. It’s best to get a professional assessment for an accurate estimate.

Waterproof coatings provide a protective barrier but may not eliminate leaks caused by structural issues. Proper assessment is essential to determine the most suitable solution.

Regular maintenance is crucial to identify and address potential issues promptly. Perform inspections at least twice a year.

Yes, proper waterproofing measures during construction can significantly reduce the risk of future leaks.

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