Building Waterproofing Experts is a division (sister-company) of Terra-Petra--founded in 2002 for the purpose of providing consulting, testing, design and inspection services for methane gas mitigation. Since then Terra-Petra has expanded its services to include all types of contaminated soil remediation and mitigation. Because of the nature of its work in environmental engineering, Terra-Petra became experts in waterproofing and drainage and launched Building Waterproofing Experts in 2010. Many of the Soil Gas Barriers on the market today were originally designed as waterproofing barriers. For years Terra-Petra has been specifying and designing soil gas barrier systems for structures having large below grade elements. Our main concern has always been to prevent the passage of water into

Terra-Petra was founded in 2002 for the purpose of providing consulting, testing, design and inspection services for methane gas mitigation. Since then we have expanded our services to include all types of contaminated soil remediation and mitigation. Because of the nature of our work, we have also become experts in below grade waterproofing and drainage. The key staff personnel for Terra-Petra possess more than 80 years of experience in the environmental and soil gas mitigation fields. Our staff includes a Civil Engineer, Registered Environmental Assessor, and a Registered Geologist/Certified Engineering Geologist. This experience gives Terra-Petra the ability to find compromise solutions for any environmental concern that may arise. It is our goal to assist developers, property o