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Basement Waterproofing
Los Angeles

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Subterranean or basement waterproofing in Los Angeles is the essential practice of protecting underground structures, basements, and foundations from water infiltration and moisture damage. Foundation Repair LA Inc. uses specialized materials and techniques to safeguard your property against costly water damage and increase overall longevity and property value.

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What Is Basement Waterproofing?

Basement waterproofing is the process of sealing and protecting a below-grade space from water intrusion, preventing moisture from penetrating through the walls, floor, and foundation. It combines interior and exterior strategies to keep groundwater, surface runoff, and hydrostatic pressure from compromising your basement and the structure above it. Waterproofing can include various methods, such as applying coatings, membranes, sealants, and drainage systems, depending on the specific needs and location of your property. Homes located on the hills of Los Angeles often suffer from water intrusion in the below-grade living space, garage, basement, and other subterranean structures, making waterproofing essential.

Water intrusion on a wall needing basement waterproofing in Los Angeles

How Do I Know if My Property Needs Basement Waterproofing?

While Los Angeles is known for its sunshine, it takes just one unexpected downpour to cause thousands of dollars in water damage. Don’t wait for a crisis. You should consider basement waterproofing in Los Angeles for your home immediately if you notice any of the following:

  • You notice water seepage or dampness in your home, basement, or garage
  • Mold or mildew is present on your property
  • Flooding or standing water occurs during heavy rains
  • Walls or ceilings show water stains or discoloration
  • Your property is in a flood-prone area
  • Your property is located on the hills of Los Angeles
  • Moisture-related issues are affecting your foundation’s integrity
  • You plan to construct or renovate a below-ground space, such as below-grade garage ADU conversion

Why Do You Need Basement Waterproofing in Los Angeles?

Los Angeles experiences a Mediterranean climate characterized by hot, dry summers and occasional heavy rainfall during the winter months. This weather pattern can lead to sudden, intense downpours and flash floods. Furthermore, many hillside homes in Los Angeles are built into the grade, exposing them to the risk of soil erosion and water runoff during heavy rains. Basement waterproofing in Los Angeles is necessary to prevent water intrusion into the below-grade portions of the home, basement and garage and protect your property’s foundation and overall structural integrity.

What Are the Benefits of Waterproofing?

  • Prevents structural damage
  • Extends the lifespan of your property
  • Reduces the risk of mold and mildew
  • Improves overall indoor air quality
  • Preserves property value
  • Reduces maintenance costs
  • Ensures a dry and comfortable living space
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solid foundation after basement waterproofing in Los Angeles

How Is Basement Waterproofing Done?

Our crew excavates the soil surrounding your rooms or structure, installing shoring where needed to protect existing structures and ensure trench safety. Next, we apply a specialized waterproof, liquid applied membrane, to the exterior walls. To ensure effective drainage and prevent water intrusion, we install a sub-drainage system, sometimes called a “burrito” or “French drain”. Next is the sheet drain system that enables water to move down to the subdrain system and relieve hydrostatic pressure. Finally, we carefully backfill and compact the excavated area with the soil, grading and swales (or v-ditches) are used to direct surface water away from the area. Please entrust this process to experienced professionals in basement waterproofing in Los Angeles, because even small oversights can allow water to breach your subterranean structures, necessitating expensive repairs down the line.

What Are the Consequences Of Water Intrusion?

Structural Damage

Water intrusion can wreak havoc on your property, leading to a cascade of structural issues. Persistent moisture can cause wood rot, corrosion of metal components, and deterioration of building materials. This deterioration weakens the overall structure, posing a significant safety risk. Cracks may form in walls and ceilings, and the added weight of absorbed water can strain the framework, potentially resulting in costly repairs or even collapse.

Weakening Foundation

Water infiltration can have dire consequences for your property’s foundation. In regions like Los Angeles, where homes are often perched on hillsides, compromised foundations can have severe consequences. Excess moisture can erode the soil beneath and around the foundation, leading to shifting, settling, and even foundation failure requiring replacement. This can cause uneven floors, sloping walls, and a host of structural problems that are not only expensive to address but also threaten the habitability and resale value of the property. Basement waterproofing in Los Angeles can prevent these costly issues.

Health Conditions Caused by Mold

Water intrusion doesn’t just harm your property; it can also affect your health. Damp, humid environments create ideal conditions for mold and mildew growth. These allergenic substances can trigger respiratory issues, allergies, and other health problems, especially for individuals with sensitivities. Additionally, prolonged exposure to moisture can compromise indoor air quality, potentially leading to health concerns and respiratory problems.

Real Customer Testimonials

Had a fantastic experience with Foundation Repair LA Inc. I wouldn't hesitate to suggest them to anyone in LA, in fact, they are the only people I would recommend...We live on a hill and water will seep into the basement area after a heavy rain on one side of the house...there are not that many construction based companies where everyone involved in the process seems to take great pride in what they do and it really makes such a difference.

J.

For many years, we had groundwater flowing under our house into the basement and through the garage. Matt gave us the most comprehensive solution to waterproofing our foundation and draining the groundwater. There was always a line of communication to answer our question and concerns. All their workers were on top of solving our drainage problems. I can't say enough about Foundation Repair LA's crew, James, Matt, Miguel, Jeremias and Tomas.

T.L.

Matt Lopez came for my inspection. He gave me honest and strong advice on what to do with some water drainage issues I was having. He went through different options and strategies based on what I was experiencing. He also helped give me advice on how to waterproof a planter I had and emailed me detailed instruction on the best way to go about it. Just loved how personable and honest he was and helped put my mind at ease. If I truly do have an issue need help, I will be giving these guys a call to come back and help.

N.T.

We couldn’t be more impressed with the work Foundation Repair LA did for us. From the first day to the last, James, Mark, Evan, and foreman Miguel went above and beyond to ensure everything was done with care and integrity. The crew - particularly Juan - were true craftsmen — meticulous and clearly proud of the quality of their work. They communicated clearly, treated our home with respect, and never cut corners. We feel so grateful to have found this level of professionalism and skill.

H.C.

Basement Waterproofing FAQs

WHAT IS THE MOST COMMON CAUSE OF WATER LEAKS IN HOMES AND BASEMENTS?

The most common cause of water leaks is poor drainage and inadequate waterproofing. Water can seep through foundation cracks, joints, or porous concrete, leading to moisture problems.

Can I waterproof my basement from the inside?

The short answer is no. There is no guaranteed waterproofing system that will last and that can be installed from the inside, or “negative” side of a wall. Basement waterproofing in Los Angeles is done from the exterior of the wall, or the “positive” side. It is also important to stop the water from passing through the wall to prevent deterioration of the concrete.

Does waterproofing increase property value?

Yes, a professionally installed waterproofing system can enhance property value by preventing water damage, ensuring a dry living space, and promoting structural integrity

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Why Choose Foundation Repair LA for Basement Waterproofing?

Foundation Repair LA Inc. invites you to take the proactive step of safeguarding your property from water intrusion. Our team brings decades of combined experience to every project. We’re proudly licensed by the Contractors State License Board with both C-8 and B licenses, ensuring the highest standards in waterproofing and foundation repair. Schedule an inspection today and request a personalized estimate — we provide the best waterproofing solutions tailored to your property’s requirements.

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