There really is no such things as radon prevention.
Even with a radon reduction system installed properly, radon levels may rise. This is usually due to ecological and structural changes occurring deep beneath your home’s structure. These shifts often referred to as “settling” may cause new cracks and gaps in your foundation and must be addressed to prevent radon gas build-up.
Both the EPA and IEMA recommend that you test your home every two years, after installing a radon mitigation system, to keep radon levels in check.
Should you find radon levels exceed the EPA guideline of 4 picocuries per liter, contact your original radon contractor. Depending on your contractor, resolving increased radon levels post mitigation may be covered by your service agreement for a period of time.
Professional Radon Systems, Inc. for example, will rectify radon levels above safety standards, at no cost to the homeowner for a period of 5 years (provided you have not had any home modifications or remodeling done). If you don’t know who installed the system give us a call. We provide maintenance and upgrade services as well.