Cavalier Corporation entered the radon industry in 1986 and soon became the northwest's leading experts in radon testing and radon mitigation . Owners, Warren and Sylvia Riddle promptly availed themselves of all available radon training and credentials:They are available to answer all your Radon questions;* What is radon gas?* What are radon gas symptoms?* How do I detect radon gas?* What are appropriate radon gas levels?* How do I test for radon gas?* Can you mitigate radon gas?* How do you remediate radon gas?* Environmental Protection Agency* National Radon Safety Board* National Environmental Health Association cavalier has mitigated hundreds of existing structures including almost 300 structures at Fort Lewis, 16 structures at Mukogawa Fort Wright Institute, 9 structures at Gonzaga University, 3 banks, and hundreds of commercial buildings and homes.