Know What You're Breathing at Home

Professional Radon Testing Services Colorado

You spend most of your time inside your Denver home without knowing whether radon gas is seeping up through the foundation. Radon is colorless, odorless, and undetectable without measurement, and Colorado homes are at higher risk due to the geology of the region. Master Mitigators uses certified equipment to measure radon levels accurately, giving you results that reflect what's actually happening in your living space.

Testing involves placing a device in the lowest livable area of your home for a set period. Short-term tests run for two to seven days and give you a quick snapshot, while long-term tests run for 90 days or more and provide a more complete picture of seasonal variation. Both methods are available depending on your timeline and whether you're preparing for a real estate transaction or making decisions about mitigation. Denver homes of all ages can have elevated radon, so testing is recommended regardless of when your house was built.

If you're buying, selling, or simply want to check your indoor air quality, reach out to discuss which testing option fits your situation.

What the Testing Process Includes

When you schedule testing, a technician places a calibrated radon detector in the lowest level of your home where you spend time, typically a basement or ground-floor room. The device remains undisturbed for the duration of the test period, measuring radon concentrations continuously. Windows and doors stay closed as much as possible during the test to avoid skewing results with outside air.

Once the test period ends, the device is retrieved and the data is analyzed. You receive a report showing your radon level in picocuries per liter, along with context about what that number means. If your result is at or above 4.0 pCi/L, mitigation is recommended by the EPA. Even levels between 2.0 and 4.0 may warrant action depending on your household and long-term exposure.

Master Mitigators provides clear, easy-to-understand results that help you decide whether to move forward with mitigation or retesting. The equipment used is certified and the process follows established protocols to give you confidence in the accuracy of your reading. Testing supports both mitigation planning and real estate requirements across the Front Range.

Questions Before You Test

Homeowners often have practical questions about how testing works and what to expect from the process.

How long does radon testing take?
Short-term tests take two to seven days, while long-term tests run for 90 days or more. Your timeline and the reason for testing determine which option makes sense for your home.
What do I need to do during the test?
You keep windows and exterior doors closed as much as possible and avoid placing the device near drafts, exterior walls, or high-humidity areas. Normal daily activity can continue without interfering with the test.
When should I test my home for radon?

Testing is recommended when buying or selling a home, after major foundation work, or if you've never tested before. Colorado's geology makes radon common, so testing is relevant for any home regardless of age or location.

What happens if my radon level is high?
If your result is at or above 4.0 pCi/L, you'll want to consider mitigation. Master Mitigators can walk you through system options and provide an estimate based on your home's layout and foundation type.
Why do radon levels vary over time?
Radon levels fluctuate with changes in air pressure, soil moisture, and ventilation patterns. Long-term tests account for these variations and give a more complete picture of your average exposure throughout the year.

If you're ready to find out what your radon level is or need testing for a real estate transaction, contact Master Mitigators to schedule a test that fits your timeline and gives you reliable information.