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Radon: Unmasking the Silent Threat

When it comes to ensuring the safety and well-being of your family, a thorough home inspection is paramount. Though while many homeowners focus on visible issues like leaky roofs or faulty wiring, there's a silent and potentially deadly threat that often goes unnoticed – radon gas. In this blog post, we'll shed light on the importance of radon testing during home inspections and why it should be a non-negotiable step in the home buying or selling process.

Understanding Radon

Radon is a colorless, odorless, and tasteless radioactive gas that is naturally present in soil and rock. It is a byproduct of the decay of uranium, which is found in varying concentrations beneath the Earth's surface. While radon is a naturally occurring gas, elevated levels in homes can pose a serious health risk. Radon is the second leading cause of lung cancer after smoking, according to the U.S. Environmental Protection Agency (EPA). Prolonged exposure to elevated levels of radon can significantly increase the risk of lung cancer, making it imperative for homeowners to be aware of this hidden danger.

Adding Radon Testing to a Home Inspection

A comprehensive home inspection involves a thorough, visual examination of a property to identify potential issues. However as mentioned earlier, radon is a colorless, odorless, and tasteless gas. While inspectors check for visible problems like water damage and structural issues, radon testing is a critical component that addresses an invisible threat. Homebuyers and sellers alike should prioritize radon testing to ensure a safe living environment.

Continuous Radon Monitor (CRM)


Radon testing is typically conducted using passive or active methods. Passive methods involve the use of radon detectors that are placed in the home for a specific period (48 hours or longer,) after which they are sent to a laboratory for analysis. Active methods, on the other hand, use electronic devices to continuously monitor radon levels. Both methods are effective, and the choice depends on factors such as testing duration and homeowner preferences.


If radon levels are found to be elevated (over 4 pCi/L,) a home inspector will recommend further evaluation by a radon mitigation contractor, to take steps to reduce levels in the home. Common methods include active soil or sub-slab depressurization, where a system of pipes and fans is used to vent radon gas from beneath the home, preventing it from entering living spaces.

In the realm of home inspections, radon testing is an indispensable step towards ensuring the safety of your family. The invisible threat of radon gas highlights the importance of thorough testing and, if necessary, mitigation. Whether you are buying or selling a home, make radon testing a non-negotiable part of the process. It may be an additional cost, but consider it a level of security- and if elevated levels are found, costs for mitigation could possibly be negotiated in your purchase (depending on the nature of your contract.) By addressing this silent danger, you are not only protecting your investment but, more importantly, safeguarding the health and well-being of those who call the property home. For more information about radon, visit:

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