A mitigation system is commonly corrected using a method called “sub-slab depressurization” or “sub-slab suction”.
It works by drilling a 6″ hole in the foundation floor (aka suction point) then inserting A PVC pipe into the hole.
A suction fan is attached and the pipe is extended outside the home.
The fan then draws the radon gas from beneath the home and vents it to the atmosphere.n
A radon mitigation system can cost between $695 – $2500 and the fan lasts roughly 10 years of continuous, 24- hour use.