How to Verify an IEMA Radon License in Illinois
By Jake Lusby · Air Sense Environmental
Verifying an Illinois Emergency Management Agency (IEMA) radon license is an important step for homeowners and real estate professionals in the Metro East. This state credential ensures that radon professionals are regulated by IEMA, providing a safeguard for real estate transactions. The agency licenses and regulates individuals who provide radon testing and mitigation services to the public. This guide details how to verify an IEMA license online, outlines the benefits of hiring regulated contractors, and explains how this framework protects Metro East homeowners.

What is an IEMA Radon License and Why is it Required in Illinois?
An Illinois Emergency Management Agency (IEMA) radon license is a state credential for professionals in the field. According to IEMA’s official site, the agency licenses and regulates the individuals who provide radon measurement and mitigation to the public. This regulation is especially critical for real estate transactions, where accurate testing and effective reduction are paramount.
Choosing an active IEMA licensee ensures you are working with a professional who falls under state oversight.
IEMA’s Role in Radon Regulation
- Licensing individuals who provide measurement services.
- Regulating professionals who perform radon mitigation.
- Maintaining public lists of active measurement and mitigation licensees.
How Do I Verify an IEMA Radon Professional’s License Online?
Verifying an Illinois Emergency Management Agency (IEMA) radon license involves checking the state’s official public directories. This step ensures any radon professional you hire for testing or mitigation is regulated by the state. The official IEMA website offers public lists to confirm active licenses, safeguarding your investment and ensuring effective radon solutions. Always check for active status and the correct license type before proceeding with any radon testing or mitigation work.
Step 1: Access the IEMA Radon Program Website
Visit IEMA’s official radon page. This is the primary resource for verifying licensed radon professionals in Illinois, as it contains lists of measurement and mitigation licensees.
Step 2: Utilize the Search Filters
On the IEMA page, you can access the lists of measurement and mitigation licensees to look up a professional by name or by county to find those serving the Metro East area.
Step 3: Review the Licensee Information
Once you locate the professional, carefully examine the details. Confirm the license status is active and verify the license type matches the service you require, whether for radon measurement or mitigation.

What Are the Risks of Hiring an Unlicensed Radon Contractor in Illinois?
Hiring an unlicensed radon contractor in Illinois means working outside the state’s regulatory framework. Because IEMA licenses and regulates individuals providing testing and mitigation to the public, choosing an unregulated professional carries several liabilities.
Unregulated Real Estate Tests
Unlicensed testing leaves you without documentation from a state-regulated professional, which can complicate real estate transactions.
Lack of State Oversight
Without proper licensing, homeowners lack the consumer protection that comes from using an IEMA-regulated professional for their mitigation work. The EPA recommends fixing homes with radon levels at or above 4.0 pCi/L, and regulated professionals are overseen by the state to perform this work.
How Does IEMA Radon Licensing Protect Metro East Homeowners?
IEMA radon licensing protects Metro East homeowners by ensuring professionals are regulated by the state for both radon measurement and mitigation. This regulatory oversight provides a crucial layer of consumer protection. By choosing a local contractor, residents ensure their homes receive solutions overseen by state standards.
The Illinois Emergency Management Agency (IEMA) actively licenses and regulates individuals providing radon services. This system helps homeowners find regulated individuals to perform critical radon work, which is especially important given that the EPA recommends professional mitigation for radon levels of 4.0 pCi/L or higher to reduce health risks.
Benefits of Hiring Licensed Professionals
- State oversight: Ensures radon solutions are provided by regulated individuals.
- Health protection: Helps ensure mitigation for levels of 4.0 pCi/L or higher is handled by a regulated professional.
- Peace of mind: Offers the protection of working with an agency-listed professional.

How often should I re-verify a radon contractor’s IEMA license?
It is advisable to re-verify a contractor’s license through the official IEMA radon lists before any new project, even if you have worked with them previously. This ensures they maintain current active status for measurement or mitigation services. Regular checks are especially important for real estate transactions to confirm compliance and consumer protection.
Can IEMA-licensed radon contractors work in any Illinois county?
The Illinois Emergency Management Agency issues these licenses and provides county-specific radon information and lists of licensees. When hiring a professional in the Metro East, including Madison and St. Clair counties, always confirm their active status and license type for the specific service you need on the official IEMA lists.
What is the EPA’s recommended action level for radon?
The EPA recommends taking action to reduce radon levels if your home tests at or above 4.0 pCi/L (picocuries per liter). Lowering concentrations below 4.0 pCi/L significantly reduces potential health risks, making professional assessment crucial for informed decisions, as outlined in the EPA’s guidance.
EPA Guidelines for Radon Levels
- At or above 4.0 pCi/L: The EPA explicitly recommends fixing the home.
- Between 2.0 and 4.0 pCi/L: The EPA advises considering mitigation, as any exposure carries some risk.
- Below 2.0 pCi/L: While lower, no level of radon is completely safe, though reduction below this point is difficult.
Ensure your home’s radon needs are handled by a professional. Air Sense Environmental provides testing and mitigation services, giving you peace of mind. Schedule your consultation today to discuss your specific situation and get expert guidance for your Metro East property. Contact us to schedule.
Prepared with AI assistance using the linked primary sources. For property-specific advice, contact Air Sense Environmental.
