Certified Radon Testing in Rockville, MD - Fast, Honest, Local
Marville’s Commitment to Rockville.
If you live in Rockville, MD, and haven’t had your home tested for radon, now is the time. Radon is a naturally occurring gas and is the second leading cause of lung cancer in the U.S. — and Rockville is in a moderate to high risk zone, according to EPA data. At Marville’s Inspect Right, I offer certified 48-hour radon testing with fast results, clear reporting, and no pressure to mitigate. Just honest data from someone who lives and works in your community.
Services We Offer Rockville
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Standard Testing
Our most popular service. This 48-hour radon test uses a professional continuous monitoring device to detect dangerous levels of radon gas in your home. You’ll receive an easy-to-read report within 24 hours of test pickup, with honest results you can trust - no scare tactics, just facts.
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Urgent Testing
Need results fast? This priority service includes same-day or next-day test deployment (based on availability) and expedited reporting. Perfect for real estate closings, pre-sale listings, or buyers working with a deadline. We’ll confirm exact pricing based on timing and location.
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Multi-Unit / Multi-Device Testing
Testing a large property or multiple foundation types? We’ll place two or more testing devices to accurately measure different areas like combination finished/unfinished basements, separate units, or areas above crawlspaces. Pricing includes a detailed report for each tested zone.
Why Radon Testing in Rockville Matters
Since 2016, Montgomery County law has required radon testing before selling most single-family homes — but even if you’re not selling, radon levels can change over time. Many Rockville homes, especially those with basements, crawl spaces, or built before 1990, are vulnerable to radon buildup. Testing is the only way to know.
Did you know? Over 40% of homes in Montgomery County test above the EPA’s action level of 4.0 pCi/L.
