The Average Cost of Radon Inspection in Illinois

Radon is a naturally occurring gas that poses a health threat to people. Some scientists say radon causes up to 30,000 people to die from lung cancer every year. Radon, which is invisible, can enter a home through crawl spaces or cracks in a basement's floor, walls or foundation. You need special equipment to find out if your home has a hazardous level of radon.

Cost of Radon Testing Kits

Radon can enter a home through cracks in the basement.

You can buy radon testing kits from laboratories, hardware stores or other retail stores that sell items related to home maintenance. Their cost varies, ranging from about $7 to $30, depending on the type of radon detector.

Types of Detectors

Radon detectors fall into one of two general categories: short-term or long-term. Short-term devices measure radon levels for two to seven days, while the long-term devices take measurements for at least three months. If either device shows a radon level higher than 4 picocuries per liter of air, you may need to take follow-up action to lower the amount of radon in your home.

Hiring a Professional

Instead of conducting your own radon inspection, you may want to hire a licensed professional to do the job. The Illinois Emergency Management Agency's Web site includes a list of trained radon inspectors in each Illinois county. The cost will vary among homes. For example, a professional radon inspection on a bi-level home with a crawl space and a slab-on-grade room will cost $150 as of 2010, according to Foresight Home Inspection LLC, a northern Illinois company.

About the Author

Adriana Colindres has been a professional writer since 1986. Her work has been published in several Midwestern news outlets—in print and online. She has a bachelor's degree from the University of Illinois and a master's degree in public affairs reporting from the University of Illinois at Springfield.