Basement & Foundation Waterproofing Services

Foundations are the backbone of any structure. When water penetrates below-grade surfaces, it can compromise structural integrity, create mold conditions, and lead to costly repairs.

Our basement and foundation waterproofing services provide long-term protection against moisture intrusion, hydrostatic pressure, and foundation deterioration.

Foundation waterproofing project

Understanding Below-Grade Water Intrusion

Basements and foundations are constantly exposed to:

  • Groundwater pressure
  • Soil movement and settlement
  • Cracking due to shrinkage and stress
  • Poor exterior drainage

Without proper waterproofing, water finds its way through even the smallest vulnerabilities.

Foundation Waterproofing Solutions

We provide comprehensive below-grade systems, including:

  • Liquid-applied and sheet foundation membranes
  • Crack injection and joint sealing
  • Drainage and moisture management solutions

Each approach is selected based on soil conditions, structure type, and water exposure.

Why SPL Waterproofing

Structural-Focused Approach

We don’t just stop visible leaks—we address the conditions causing water intrusion.

Durable, Proven Materials

Our foundation waterproofing systems are designed to withstand constant moisture exposure and soil pressure.

Local Expertise

We understand Southern California soil conditions, codes, and construction practices.

Serving Los Angeles & Orange County

We provide basement and foundation waterproofing services across Los Angeles County and Orange County, supporting commercial and residential properties alike.

Protect Your Structure from the Ground Up

Foundation water issues only worsen over time. Early waterproofing protects your structure, indoor air quality, and long-term value.

Contact us today to schedule a professional evaluation.