Radon Testing in Denver, Colorado
Professional radon testing and inspection services in Denver, Colorado. Our EPA-certified technicians use state-of-the-art equipment to identify radon risks in your home. We provide accurate, reliable results and clear guidance on next steps. Testing is the only way to know your radon exposure level — schedule your assessment today.
Why Radon Testing is Critical in Denver
Denver sits at 5,280 feet elevation on uranium-bearing soil from the Rocky Mountain region. Colorado consistently ranks among the top radon states in America. The Colorado Department of Public Health and Environment identifies the Denver metro area as EPA Radon Zone 1, where elevated radon is found in approximately 50% or more of homes. The naturally high radon potential combined with older construction methods in foundations creates significant radon risks.
Radon is an invisible, odorless radioactive gas that seeps into homes from the soil below. Prolonged exposure increases lung cancer risk — it’s the second leading cause of lung cancer after smoking. The only way to know if your home has elevated radon is through professional testing. Many Denver residents are unknowingly exposed to dangerous radon levels.
Our testing team works throughout Denver and the surrounding metro area to help homeowners and business owners understand their radon situation and explore mitigation options if needed.
Our Radon Testing Process
We use EPA-approved testing methods and industry-standard equipment. Our process is simple, non-invasive, and provides accurate results:
- Initial Assessment: We evaluate your property, discuss your concerns, and recommend the best testing approach for your situation.
- Test Setup: We place calibrated radon test kits in the lowest livable level of your home, typically the basement or lowest occupied space.
- Monitoring Period: Short-term tests run 2-7 days; long-term tests run 90+ days. We minimize disturbances to your home during this period.
- Lab Analysis: After the monitoring period, samples are sent to our certified laboratory partner for professional analysis.
- Results & Recommendations: We deliver detailed results, explain what they mean, and discuss mitigation options if radon levels are elevated (4 pCi/L or higher).
Understanding Your Radon Test Results
EPA guidelines recommend taking action when radon levels reach 4 pCi/L (picocuries per liter) or higher. Some experts suggest mitigation at lower levels. Here’s how to interpret your results:
- Below 2 pCi/L: Low radon level; no action required. You may want to retest in the future.
- 2-4 pCi/L: Borderline; some experts recommend mitigation for long-term peace of mind.
- 4+ pCi/L: Elevated; EPA recommends mitigation. We can discuss how much does radon testing cost and costs.
If your results show elevated radon, don’t panic. Modern mitigation systems are effective, reliable, and less expensive than most homeowners expect. We can connect you with certified mitigation contractors to reduce your radon levels by 50-99%.
Short-Term vs. Long-Term Testing
Short-term tests (2-7 days) provide a quick snapshot of your radon level. These are ideal for home inspections, pre-purchase evaluations, or urgent assessments. However, radon levels fluctuate seasonally and with weather patterns, so a short-term test may not represent your average annual exposure.
Long-term tests (90+ days) capture radon behavior across seasons and weather patterns, providing a more accurate picture of your typical annual radon exposure. Long-term tests are excellent for homeowners making mitigation decisions or for properties with borderline short-term results.
Many homeowners use a short-term test first, then follow up with a long-term test if results warrant further investigation.
Radon Testing Costs & Scheduling
Professional radon testing in Denver typically costs $150-$400 depending on property size and test duration. This is a small investment compared to potential health risks and remediation costs if elevated radon goes untreated.
Testing can usually be scheduled within 1-2 weeks of your call. We work with homeowners’ schedules and can often accommodate same-week testing for urgent situations.
Many homeowners choose testing as part of a home inspection when buying or selling a property. In Colorado, radon testing disclosures may be required during real estate transactions — our results provide the documentation you need.
Frequently Asked Questions
What exactly is radon?
Radon is a naturally occurring radioactive gas produced by uranium decay in soil and rock. It’s colorless, odorless, and tasteless — you cannot detect it without specialized equipment. Radon seeps into homes through cracks, gaps, and openings in foundations, basements, and crawlspaces.
How does radon get into homes?
Radon gas migrates upward from soil into buildings through any available openings: foundation cracks, gaps around pipes and utilities, sump pump openings, crawlspace vents, and other penetrations. Negative air pressure inside homes (from heating, air conditioning, and ventilation) actually pulls radon indoors.
Is radon exposure dangerous?
Yes. The EPA and Surgeon General list radon as the second leading cause of lung cancer after smoking. Radon damage is cumulative and dose-dependent — higher radon levels and longer exposure both increase risk. Children and non-smokers are at risk, not just current smokers.
What radon level is safe?
The EPA recommends mitigation at 4 pCi/L. However, there is no completely “safe” radon level — any radon exposure carries some risk. The EPA notes that reducing radon below 4 pCi/L further decreases health risk. If you’re concerned about borderline results, mitigation is an effective way to reduce your family’s radon exposure.
How long does radon testing take?
Short-term tests take 2-7 days. You’ll typically see results within 1-2 weeks after we pick up the test kit. Long-term tests take 90+ days, with results available shortly after the monitoring period ends. For urgent situations, we can complete short-term testing within a week of scheduling.
Can radon be fixed?
Absolutely. Radon mitigation systems are highly effective, typically reducing radon levels by 50-99%. A certified radon mitigation contractor installs a ventilation system that vents radon gas safely above your roof line. Systems are affordable, non-invasive, and many can be installed in 1-2 days.
Do I need to leave my home during testing?
No. Testing is non-invasive and you can remain in your home throughout the monitoring period. We ask that you minimize unusual activity that might affect results (like opening windows or doors extensively), but normal daily life doesn’t impact accuracy.
Will radon testing affect my home sale?
In many cases, radon testing during a home inspection is standard practice. If elevated radon is found, most buyers and sellers work together to either mitigate the radon before closing or negotiate radon mitigation as part of the sale. In Colorado, radon testing information may need to be disclosed — our professional results give you the documentation you need.
Next Steps: Schedule Your Radon Test
Radon testing is simple, affordable, and essential for your family’s health. Whether you’re buying a home, have concerns about your property, or simply want peace of mind, we can help. Our Denver-based team has the expertise and equipment to provide accurate results and clear guidance.
Get a Free Radon Quote
