Every radon job around Harrisburg starts from one of a few doors, and this page is the hallway. Holding a high test result? That points at mitigation, the heart of this trade. Racing a closing date? The real-estate service runs testing, mitigation, and paperwork against the calendar. Never measured your home at all? Testing comes first, because nothing else can be decided without the number. And if you already own a system that’s gone quiet or grown loud, repair has its own page. Whatever the door, the sequence inside is the same: assess the house, do the work the house calls for, and verify the result with a test.