This 1960-built home in Woodbridge, CT had a radon level of 4.8 pCi/L, just below the EPA action threshold—but with plans to finish the basement, the new homeowners weren’t taking any chances. The home has one foundation and a cement crawl space, making it ideal for a 2-pipe radon mitigation system. No sump pump or water guard was present, so our team also took care to seal visible cracks to prevent further radon entry.