My Savage home already has a radon mitigation system. Should I still test?

Yes, you should still test, and ideally test before you waive your inspection contingency. A radon mitigation system, typically a sub-slab depressurization setup with a PVC pipe and an inline fan, only works if it is properly installed and actually running. We see systems in Savage homes that have a failed fan, a disconnected pipe, a manometer reading zero, or improper discharge routing that allows radon to re-enter. A system installed years ago may no longer be performing to standard, and sellers do not always know its condition. During the inspection we verify the fan is operating, check the manometer pressure gauge, confirm the discharge terminates above the roofline and away from windows, and look for proper sealing at the sump and slab penetrations. Pairing that visual check with a 48-hour radon test confirms the system is genuinely keeping levels below the EPA action level of 4.0 picocuries per liter. Trust but verify is the right approach with any existing mitigation system. To schedule a test that confirms your system is doing its job, call us or build a free instant quote online.