Radon Testing.
Critical for DMV Homes.
Montgomery, Howard, Baltimore, Fairfax and Stafford counties are EPA Zone 1 — the highest radon-potential category — and homes anywhere in the DMV can test high. Radon is the second-leading cause of lung cancer in the US. A 48-hour test gives you certainty.
What's included
- EPA-compliant continuous radon monitor (48-hour placement)
- Placement in lowest livable area (basement or crawlspace)
- Certified lab analysis of results
- Digital report with EPA guidance & risk interpretation
- Mitigation recommendations if levels are elevated
- Bundle option with full inspection in Peace of Mind Package
Why it matters
EPA stats: 1 in 15 US homes has elevated radon, and radon-induced lung cancer kills ~21,000 Americans per year. EPA rates Montgomery, Howard, Baltimore, Fairfax and Stafford counties Zone 1 and recommends testing every home regardless of zone. If levels come back over 4 pCi/L, mitigation typically runs $1,200–$2,500 and is fast leverage for seller negotiation.
Frequently asked questions
How long does radon testing take?
48 hours on site. We place the continuous monitor in the lowest livable area and retrieve it after the test window.
What if results come back over 4 pCi/L?
EPA recommends mitigation. Typical cost is $1,200–$2,500 for a system installed by a specialist. Results support seller negotiation.
Aren't DIY radon kits cheaper?
Yes, but DIY charcoal kits are error-prone and slow. A continuous professional monitor is more accurate and delivers same-week results.
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Ready to book?
It takes 60 seconds.
Most Polaris inspections book within 2–3 business days.