ALARA Property Services
Verified Pro
3½+ years online5.0
Radon Mitigation in Indianapolis, IN
Compare 22 radon mitigation contractors near you in Indianapolis and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated May 14, 2026
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Radon Mitigation in Indianapolis, IN
Indianapolis radon mitigation specialists in this directory cover Broad Ripple, Meridian-Kessler, Fountain Square, downtown, and surrounding Marion County. Indiana falls in EPA Radon Zones 1 and 2 — Marion County is largely Zone 1. Sub-slab depressurization on a typical Indianapolis basement home runs $1,400-$2,800 installed.
Indiana State Department of Health publishes county-by-county radon zone maps. Real-estate transactions in Indianapolis increasingly include radon testing.
Frequently Asked Questions
- Do most Indianapolis homes have radon?
- Yes — Marion County is largely EPA Zone 1, and many homes test above 4 pCi/L.
- How long does Indianapolis mitigation take?
- Sub-slab depressurization is a 1-day job.
- What about radon in crawlspaces?
- Crawlspaces require sealed vapor barrier and active sub-membrane vent fan.
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NeedInstall helps connect customers with local installation professionals across Indianapolis and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.