About FindRadonPros

Our Mission

We built FindRadonPros for one reason: homeowners need a faster way to connect with contractors who can handle radon work. Radon concerns are often time-sensitive, especially during a home sale or after an unexpected test result. We focus on giving people useful options quickly, with enough detail to compare providers and move forward with confidence.

How We Build Our Directory

Our directory is built from multiple trusted sources, not a single spreadsheet. We start with national certification registries like the NRPP (National Radon Proficiency Program) and NRSB (National Radon Safety Board), then check that data against Google Business profiles, state licensing databases, and public reviews. Checking multiple sources helps us confirm that a company is active, reachable, and actually serving the areas shown on our site.

We also check for consistency across sources. If a company's phone number, address, or service area does not match across registries and business profiles, we flag the listing for review instead of showing uncertain information as fact. Contractors with stronger credentials rank higher, and listings with limited data are clearly labeled so you know what has been confirmed.

What We Cover

FindRadonPros covers all 50 U.S. states with over 1,000 radon professionals listed. Our directory includes contractors who specialize in radon mitigation system installation, short-term and long-term radon testing, crawl space encapsulation, radon fan systems, and ongoing system maintenance. We also provide product comparisons for test kits, digital monitors, mitigation fans, and DIY supplies. Everything a homeowner needs to make an informed decision about radon in their home.

Our Data Quality Commitment

We keep our data current. Listings are refreshed regularly and checked for outdated phone numbers, missing details, and inactive businesses. Every listing is evaluated on certification status, contact accuracy, Google reviews, and whether the business appears to still be operating.

We also review reported issues from homeowners and contractors and prioritize corrections that include supporting evidence. No directory is perfect, and information can change quickly. When it does, we update records to keep listings useful and accurate. If you spot an error, we want to hear from you — use our contact page to report corrections.

FindRadonPros Editorial Team

Our editorial team maintains consumer education content and trust pages across the site. We focus on practical guidance: how to choose a contractor, what to expect during a project, and how to evaluate your options without pressure.

We review and update content to keep it current, clear, and useful for homeowners making real decisions.

Our Editorial Standards

All content on FindRadonPros references published guidance from the U.S. Environmental Protection Agency (EPA), World Health Organization (WHO), and peer-reviewed research. We do not make medical claims or diagnose health conditions. Our goal is to present data-driven, factual information that helps homeowners make informed decisions about radon testing and mitigation.

• Content is reviewed against current EPA guidelines and AARST/ANSI standards before publication.
• Health-related pages include a medical disclaimer directing readers to consult their physician.
• Product recommendations are based on publicly available specifications, not manufacturer relationships.
• We clearly distinguish between editorial content, user-generated reviews, and sponsored placements.

Data Sources

Our contractor directory and educational content draw from multiple authoritative sources:

• NRPP (National Radon Proficiency Program) — certification registry for radon professionals
• NRSB (National Radon Safety Board) — credential verification for radon measurement and mitigation
• EPA Radon Zone Map — county-level radon potential classifications across the U.S.
• Google Business profiles — contact details, reviews, and whether the business is still active
• Contractor websites — services offered, service areas, licensing, and warranty information
• State radon programs — state-specific licensing requirements and contractor registries

How We Rank Contractors

Rankings on FindRadonPros are based on certifications first, then Google reviews and how complete a contractor's profile is. Paying for a featured spot never changes where a contractor appears in organic results. Sponsored listings are displayed separately and clearly labeled.

For a detailed explanation of how rankings work and what we check, see our full methodology.