The typical Radon Mitigation System is technically called a sub-slab depressuriztion system
SSD's are vacuum systems that draw a continuous vacuum from the aggregate and soil below the basement, crawlspace,
or slab. While seemingly simple, these systems are very effective at preventing radon entrance, while maintaining the energy
efficiency characteristics of a home.
In most cases, the SSD is routed directly to the exterior where an in-line fan and exhaust pipe are installed on
the outside wall. This is the most affordable system. These systems range from $725 - $875, which includes follow-up testing.
Many homeowners choose to have
the SSD routed through the interior of the home via an attached garage or attic, with the exhaust pipe terminating through
the roof. These systems are much less obtrusive as the only component visible from the exterior is a small portion of
pipe, looking much like a common plumbing stack pipe. These systems range from $1,000 - $1,800, which includes follow-up testing.