Radon gas mitigation is a specialist, and growing industry. Radon inspectors perform professional testing and may also check on existing mitigation systems.
Mitigation companies hire technicians who are trained in inspection, but also in remediation techniques. Often, they also handle asbestos and mold removal, and mold inspection can be an important part of designing the overall abatement system. Toxic chemical abatement, of course, requires great attention to the safety of the workers. Asbestos can be particularly difficult to handle.
Workers need to be able to install fans and set up vents. Keeping the vents clean is an important part of ensuring that the system stays in good repair. These contractors need to purchase supplies and equipment. A mitigation company also needs its workers to understand why radon gas is dangerous and to educate them and home owners on the risks of exposure. Companies will perform both short term and long term tests, the former often being used before sale of a property. It generally takes less than a day to install a system and reduction is immediate.
Companies may also sell radon detection and mitigation kits, although only a skilled DIYer is likely to attempt abatement.
Industrial and commercial buildings require a more advanced approach. Pressurization is the most common approach used here. Exposure levels tend to, however, drop dramatically above the third floor. Businesses and schools obviously require a larger scale approach than homes.
Radon is currently considered a major health threat. Detection and mitigation is a growth industry, especially in areas where radon levels are naturally higher, such as in the northern part of the United States.