Learn
Radon guides worth reading
Plain-English answers to every radon question, written by Tipper. Facts first, clear next steps.
Best Radon Test Kits: Tipper's Picks for Every Budget
Three options at different price points, all EPA-approved. Tipper breaks down which one fits your situation.
What Is Radon? The Complete Guide
Radon is the second leading cause of lung cancer in the US. Here's what it is, where it comes from, and what it means for your home.
How to Test Your Home for Radon (Step by Step)
A short-term test kit costs under $20 and takes 48 hours. Here's exactly what to do and how to read the results.
What to Do If Your Radon Levels Are High
A reading above 4 pCi/L means it's time to act. Here's a calm, step-by-step plan.
How Radon Mitigation Systems Work
Sub-slab depressurization in plain English: what a contractor actually installs, what it costs, and why it works.
EPA Radon Zones Explained
Zone 1, 2, and 3: what they mean, how the EPA draws the lines, and why your county's zone doesn't tell the whole story.
How to Find and Vet a Radon Mitigation Contractor
What certifications to look for, what questions to ask, and what a fair price looks like.
How to Read Your Radon Test Results
Your lab report has a number. Here's what it means, what the EPA recommends at each level, and what Tipper would actually do.
Best Continuous Radon Monitors: Tipper's Picks
Real-time radon tracking for post-mitigation monitoring. Three monitors at different price points, all reviewed by Tipper.
Radon and Real Estate: What Buyers and Sellers Need to Know
High radon is fixable, not a deal-killer. How to handle testing, negotiation, and disclosure on either side of a home sale.
Radon in Basements vs. Upper Floors
Basements have the highest concentrations, but upper floors aren't automatically safe. What drives the difference and where to test.
How Often Should You Test for Radon?
A single test isn't a permanent answer. Here's the retesting schedule Tipper follows, plus the events that should trigger an immediate retest.
Radon Myths Debunked
New homes don't have radon? Low-risk zone means no risk? Sealing the basement fixes it? Here's what the data actually says.
Radon Risks by State: An Overview
From Iowa's near-universal Zone 1 to Hawaii's minimal risk. Why some states run high, which run low, and why state averages can be misleading.
DIY Radon Mitigation: Is It Safe?
You can technically do it yourself. Here's why Tipper recommends hiring a pro, and the scenarios where DIY might be reasonable.
How to Talk to Your Landlord About Radon
If you rent and your test came back high, here's how to raise the issue, what your rights are, and what to do if your landlord won't act.
Not sure where to start?
Search your county to see your EPA radon zone and CDC average, then read whichever guide fits your situation.