For companies: claim your listing

If your company is certified with the state, you're already listed here — we build this directory from the NJDEP Radon Certification Program, not from paid placements.

Claiming is free

Claiming lets you add or correct: website link, phone number, service area, and a short description of your services. We verify claims against the official registry record — no phone calls needed.

How to claim

  1. Email hello@radonlist.com from a company email address (ideally matching your website domain).
  2. Include your company name and your state certification/registration number as it appears in the registry.
  3. Tell us what to add or correct.

We'll confirm the certification number against the public registry and update your profile, usually within a few business days.

Want the leads?

Homeowners request quotes through this site every week. If you'd like quote requests from your service area routed to you, say so in your claim email and we'll share how that works.

We never charge to be listed, and we don't remove certified companies from the directory — it's a public-record index. To report a data error, use the same email.