Get listed free. Get found by GTA homeowners.
Last updated: By RadonIndex Research Team
RadonIndex lists 35 radon companies across the Greater Toronto and Hamilton Area, ranked by a published score and never by ad spend. If your site names a radon service and you are not here, tell us. If you hold C-NRPP certification and we have not recorded it, send the certificate number and we will check it and say so on your profile.
How does RadonIndex work for radon professionals?
1. You get listed free
Every eligible business already has a basic profile built from public data. Claiming it costs nothing.
2. Homeowners find you
Category and neighbourhood pages rank you by the RadonIndex Score, a published formula.
3. The homeowner sends a request
Your profile carries a request form rather than a phone number. What comes in reaches RadonIndex by email. Nothing has been sent on to any company from this site, and we would not start without agreeing it with you first.
Why claim your profile?
Unclaimed profiles show only public data. A claimed profile shows what you want homeowners to see: your full service list, photos, exact service areas and the right contact details, as you supply them. Claimed profiles convert visits into calls better.
- Correct phone, email and website
- Your services and photos, not just scraped data
- A direct call button on your listing once it is claimed
Can anyone pay for a better ranking?
Never. RadonIndex positions come only from the published RadonIndex Score: what your own website states about you, your Google reviews, and how complete your record is. Keeping money and rankings apart is what makes homeowners trust the list, which is exactly what makes your free listing worth claiming. You can read the exact method on our methodology page.
Read the ranking methodologyQuestions from radon professionals, answered
Does a listing on RadonIndex really cost nothing?
- Yes. A listing is free, no company can buy a better position, and the order on every list comes from a published formula with no advertising slot anywhere on the site. What we are building on top of that is a paid route for work we pass on, which is a separate thing you would have to agree to; nothing is charged to you for simply being in the index.
Do you send me leads?
- Not yet. The site now runs a request form, and what a homeowner sends reaches RadonIndex by email. Nothing has been passed to any company from this site so far, and we will not start sending work to you without agreeing it with you first.
What does claiming my profile change?
- A claimed profile shows the details you control: your service list, photos, service areas and contact information, as you supply them. Unclaimed profiles show only public data. Claimed, accurate profiles convert homeowner visits into calls far better.
Can I pay to rank higher on RadonIndex?
- No, and that is the point. Rankings come only from the published RadonIndex Score, which is what your own website states about you, worth 40, your Google reviews, worth 35, and how complete your record is, worth 25. Nobody can buy a position, which is exactly why homeowners trust the list, and why being on it is worth your time.
How do I fix wrong information on my profile?
- Email us and we will correct it, usually within 2 business days. Profiles are built from public sources as of our August 2026 dataset, so occasionally a phone number, category or service area needs an update. Claiming the profile is the fastest way to keep it accurate.
Claim your free profile today
Email RadonIndex and we will confirm your details, add your services and photos, and make sure homeowners see an accurate profile, within 2 business days.
Claim your free profile