Colorado Springs Radon FAQs

Typically $800–$2,000. A standard sub-slab system in a basement home runs $1,000–$1,500; complex foundations or crawl spaces can reach $1,300–$3,000. Full cost breakdown →

The EPA action level is 4.0 pCi/L — mitigate at or above it. The EPA also recommends considering a fix between 2 and 4 pCi/L, especially in Zone 1 areas like El Paso County. Understand your reading →

Use a $15–$50 DIY kit (2–7 days) or hire a professional ($150–$250). Test the lowest lived-in level under closed-house conditions, and confirm elevated results with a second test. Testing guide →

Sub-slab depressurization: a vent pipe and inline fan draw radon from beneath your foundation and exhaust it above the roofline, reversing the pressure that pushes radon indoors. How it works →

Most residential systems install in a single day — typically 4–8 hours. A follow-up test a few days later confirms your new level.

No — not on its own. Colorado health officials are explicit: caulking and sealing cannot keep radon out by itself. Sealing supports a real mitigation system; it never replaces one.

Yes. El Paso County is EPA Radon Zone 1, and aggregated test data frequently shows local readings above the 4.0 action level. Every home should be tested, regardless of neighbors' results.

Yes — tightly sealed new construction can trap more radon indoors. Some new builds include passive radon piping; activating it with a fan costs around $500.

Require in writing: a guarantee that levels are reduced below 4.0 pCi/L, plus a minimum 5-year warranty on the fan and workmanship — per Colorado health department guidance.

Every 2 years, even with a mitigation system installed — fans wear out. Test sooner if you remodel, finish a basement, or change HVAC usage.

No. A typical fan draws about as much as a continuously running 60–90 watt bulb — roughly $75–$150 per year. Fans usually last 5–10+ years; replacements run $200–$400 installed.

Yes — testing should be part of every purchase here. A professional test costs $150–$250 (often bundled with inspection), and elevated results are a standard negotiation point.

Colorado's Low Income Radon Mitigation Assistance (LIRMA) program can cover mitigation for eligible low-income homeowners whose primary residence tests above 4 pCi/L.

Use the state's lookup tool for licensed radon mitigation and measurement professionals. Verify licensing, get at least three bids, and require the written reduction guarantee and 5-year warranty.