Radon Testing in Greenville County, SC and the Upstate, SC
Accurate Radon Testing for Clear, Reliable Results
Radon is an invisible, odorless gas that can enter homes and buildings without warning. The only way to know whether elevated radon levels are present is to have the property tested.
Quin Company provides professional radon testing in Greenville County, SC and throughout the Upstate. Using calibrated monitoring equipment and established testing protocols, we measure radon levels and provide a clear report so homeowners, buyers, sellers, and real estate professionals can understand the results and determine the appropriate next steps.
Testing is especially important because radon levels can vary from one property to another. A home can have elevated levels even when neighboring properties do not. The EPA recommends taking action to reduce radon when levels reach 4.0 pCi/L or higher and considering mitigation when levels are between 2.0 and 4.0 pCi/L.

The above graph is an illustration of the results of a radon test after mitigation was activated. The graph indicates the high level of radon right before the system is turned on and shows the consistent reduction in radon with the system running.
When Should You Schedule a Radon Test?
Because radon cannot be seen or smelled, testing is the best way to determine whether it is present at elevated levels. Consider scheduling a radon test if:
- You’re buying or selling a home in Greenville County or the Upstate.
- Your home has never been tested or the previous test is more than two years old.
- You spend significant time in a basement or other lower-level living space.
- A previous test or a nearby property’s test showed elevated radon levels.
- You’ve renovated your home or changed its HVAC or ventilation systems.
- Your property has a crawl space, slab foundation, basement, or sump pit.
- You need current test results for a real estate transaction.
The EPA notes that a new test may be appropriate when a previous test is no longer recent, the property has been renovated or altered, or a buyer will occupy a lower level that was not previously tested.
Benefits of Professional Radon Testing in Greenville County, SC
A professional radon test gives you reliable measurements instead of relying on assumptions about your property. Quin Company provides testing and reporting designed to make the results easy to understand and useful for determining what to do next.
Certified, Accurate Measurements
Fast Turnaround and Clear Reports
Local Expertise For Upstate Homes
Seamless Path to Mitigation

Why Choose Quin Company for Radon Testing?
Certified Radon Professionals
Our radon testing and mitigation services follow applicable EPA and ANSI/AARST guidance and industry testing practices.
Continuous Monitoring Equipment
Calibrated continuous monitors can record radon levels over the testing period, providing detailed measurements that help identify changes during the test.
Clear, Straightforward Reports
We explain what your radon test results mean and discuss the available next steps in plain language. Our goal is to give you useful information without unnecessary alarm or confusing technical language.
Testing and Mitigation Support
If elevated radon is found, our team can help with the next stage of the process. Quin Company provides radon mitigation, post-mitigation testing, and ongoing support to verify that the system is performing as intended.
Schedule Radon Testing in Greenville County, SC
Don’t guess about your home’s radon levels. Schedule professional radon testing with Quin Company and get accurate measurements, a clear report, and practical guidance on what to do next.
Whether you’re a homeowner, buyer, seller, or real estate professional, we provide radon testing throughout Greenville County and the Upstate, SC.
Contact Quin Company today to schedule your radon test.
