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Compare 2 certified contractors for radon mitigation, testing, and crawlspace work.
Madison is in a EPA Zone 1 — high-radon region. Compare certified local providers below.
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Take the 90-second radon assessment →Cost estimates, risk data, testing advice, and tools for Madison, Alabama.
Alabama includes EPA Zone 1 counties, so radon mitigation in Madison should be treated as a core indoor-air priority. 2 local contractors are currently listed, so broader metro comparisons may help with pricing and availability. Based on EPA county-level mapping, Alabama includes Zone 1 areas, which indicates high predicted indoor radon potential. State context: The Tennessee Valley region of northern Alabama has some of the highest radon levels in the Southeast.
We track 2 local contractors. The strongest service coverage is 100% testing and measurement and 100% commercial projects.
Homeowners in Alabama often report radon mitigation quotes in a general range of $1,000–$2,600 for most single-family homes. Actual pricing depends on foundation type, pipe routing, fan placement, system design, and local labor conditions. Get at least two written quotes from certified contractors for an accurate comparison.
Compare your estimate with the cost calculatorPrimary state-level EPA reference: Zone 1. Northern Alabama counties along the Appalachian foothills are EPA Zone 1 (highest risk). Southern counties are mostly Zone 2-3.
EPA zone maps are county-level screening tools. Home-level testing is still required to confirm risk.
Alabama is generally mapped as higher-potential radon territory (Zone 1), so annual-to-biannual testing is common after mitigation or major foundation changes. For seasonal timing, closed-house winter testing usually captures worst-case indoor buildup. For real-estate transactions, run a short-term test during due diligence, then confirm with follow-up testing if results are near or above 4.0 pCi/L.
Check EPA zone guidance by ZIP, then compare options for radon mitigation in Madison. Start with common ZIPs below:
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