48HR radon testing

Radon is a naturally occurring radioactive gas that can enter a home from the soil below the foundation. It is colorless, odorless, and tasteless, meaning the only way to know your radon level is through testing.

A 48-hour radon test is the most common short-term test used during real estate transactions and home inspections. It provides a reliable snapshot of a home’s radon levels under controlled conditions.

• A calibrated radon monitor is placed in the lowest livable level of the home
• The test runs continuously for a minimum of 48 hours
• The home must remain under closed-house conditions during the test
• The monitor measures radon levels every hour and records an overall average

At the end of the test period, the data is retrieved and reviewed for accuracy.

• Radon levels are measured in picocuries per liter (pCi/L)
• The EPA action level is 4.0 pCi/L
• Results below 4.0 pCi/L are generally considered acceptable
• Results at or above 4.0 pCi/L indicate that mitigation is recommended

Even homes with low radon levels can benefit from periodic retesting, as levels can change over time.

Radon is the second leading cause of lung cancer in the United States and the leading cause among non-smokers. Radon can affect homes of any age, style, or location—new or old, slab, crawlspace, or basement.

Testing provides:

• Peace of mind
• Important health information
• A clear basis for next steps, if needed

• A professionally conducted 48-hour radon test
• Clear, easy-to-understand results
• Guidance on next steps if elevated levels are detected

Radon testing is a simple step that helps you better understand the health of the home and make informed decisions.