Radon is an invisible threat that many homeowners in Oakland County don’t think about until it’s too late. As a naturally occurring radioactive gas, radon seeps into homes through cracks in foundations, sump pumps, and crawl spaces. Unfortunately, Oakland County falls entirely within EPA Radon Zone 1, meaning the area has the highest potential for dangerous radon levels. This guide will help you understand the risks and the steps you can take to protect your family.
Radon is a colorless, odorless gas that comes from the natural breakdown of uranium in soil and rock. While it’s harmless outdoors, radon can accumulate indoors to levels that increase the risk of lung cancer. According to the EPA, radon is the second leading cause of lung cancer in the U.S. after smoking. The EPA recommends action if radon levels in your home exceed 4.0 picocuries per liter (pCi/L), but even levels between 2.0 and 4.0 pCi/L carry some risk.
The EPA classifies Oakland County as a Zone 1 area, indicating the highest risk for radon levels above 4.0 pCi/L. This is due to the region’s geology, which includes uranium-rich soil and glacial deposits. Cities like Troy, Bloomfield Hills, and Rochester Hills are particularly prone to elevated radon levels, but no part of the county is immune. Even newer homes with tight construction can trap radon more effectively than older, draftier homes.
Radon testing is straightforward and can be done with either short-term or long-term devices. Short-term tests, which last 2–7 days, are the most common during real estate transactions. Long-term tests, lasting 90 days or more, provide a more accurate picture of year-round radon levels. Professional radon inspectors, like those at The Problem Experts, use calibrated equipment to ensure reliable readings. Testing is especially important if you’re buying a home in Oakland County, where high radon levels are common.
If your radon test results come back above 4.0 pCi/L, a radon mitigation system is the next step. These systems work by venting radon gas from beneath your home to the outside. The most common type is a sub-slab depressurization system, which involves installing a pipe and fan to draw radon out from under your basement or slab foundation.
In 2026, the cost to install a radon mitigation system in Oakland County typically ranges from $800 to $2,500. The price depends on factors like the size of your home, the complexity of the installation, and the type of foundation. For example, homes with crawl spaces or multiple foundation types may require additional work, pushing costs toward the higher end.
If you’re building a new home in Oakland County, consider incorporating radon-resistant construction techniques. These include installing a gas-permeable layer beneath the slab, sealing all openings in the foundation, and installing a vent pipe for passive radon removal. Adding these features during construction is far more cost-effective than retrofitting them later.
While DIY radon test kits are available, they’re not always reliable, and interpreting the results can be tricky. A professional radon inspection ensures accurate testing and provides peace of mind. Inspectors also evaluate factors like foundation type and ventilation, offering tailored recommendations if mitigation is needed.
If you’re concerned about radon in your Oakland County home, start with a professional inspection. The Problem Experts provide comprehensive radon testing and can guide you through mitigation if necessary. Call us today at (734) 386-0283 to schedule your inspection or learn more about how we can help.