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The Terra-Petra Waterproofing Division specializes in the design and inspection of waterproofing systems for below grade structures, decks, planters, stairs as well as green and white roofs. Our waterproofing services launched in 2002 to provide consulting, testing, design and inspection services for methane gas mitigation. 

Over the years we’ve continued to build this important environmental engineering industry service need. It is our intent to make every one of our clients’ lives easier by addressing all of their building waterproofing and enveloping needs. Our goal is to ensure our clients' developments stay water tight. 

A Certified Small Business Enterprise (CSBE) and LEED AP in BD+C, our waterproofing services include:

WaterproofingEngineering and Design
Waterproofing Inspection
BuildingWaterproofing Consulting

Division of Terra-Petra Environmental Engineering
Your Best Choice for All Building Waterproofing Needs

700 South Flower #2580 Los Angeles CA 90017  
888.540.5703
213.458.0494

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