Pennsylvania Radon Certification Requirements for Contractors
Pennsylvania's Radon Certification Act requires anyone performing radon testing or mitigation services for compensation in the state to hold certification through the PA Department of Environmental Protection, or through a national certifying body recognized by PA DEP. This is a meaningfully different regulatory situation than mold remediation, which Pennsylvania does not license.
Because this certification is a legal requirement rather than a voluntary credential, hiring an uncertified person to test or mitigate for pay in Pennsylvania is not just a quality risk, it is outside the law. This is a genuinely useful, low-effort filter: PA DEP's public list resolves the question in a couple of minutes.
See our page on choosing a radon contractor for what else, beyond certification alone, is worth asking about before hiring anyone for mitigation work. Looking for a certified radon contractor in York, PA? That is where to start.
Common questions
How can I verify someone's PA radon certification?
PA DEP maintains a public list of certified radon professionals, searchable by name or company. Checking this directly, rather than taking a company's word for it, is a reasonable step before hiring anyone.
Does certification apply to testing, mitigation, or both separately?
PA DEP certifies these as separate categories; a tester certification does not automatically include mitigation certification. It is worth confirming which certification a specific contractor holds for the specific service they are providing.
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