Ajax radon testing and mitigation
126,700 residents. ~1 in 17 homes test above the Health Canada radon guideline.
Why Ajax homeowners test
Ajax's post-2000 growth corridor along the 401 and 412 has created a housing stock that's mostly less than 25 years old. Newer homes, airtight construction.
Our Ajax service
- Testing: $99 (standard) or $399 (real estate)
- Mitigation: $2,800 to $3,800 preliminary estimate 3
- Typical scheduling: within 3-5 business days
- Same-week availability most months
Ajax-specific questions
Do you service all of Ajax?
Yes. Every Ajax neighbourhood including Westney Heights, Pickering Village, Lakeside, Northeast Ajax, Central Ajax, Discovery Bay, and the newer subdivisions near Salem Road. Same $99 testing price, no distance surcharge.
Which Ajax neighbourhoods are higher risk for radon?
Pickering Village (the historic core, originally a separate village now part of Ajax) and older Westney Heights bungalows tend to top the list because of stone or block foundations and finished basements that predate modern vapour barriers. Newer subdivisions in northeast Ajax test lower on average but can still spike in individual homes.
My Ajax home was built post-Feb 2021. Does Tarion cover radon mitigation?
Yes. Most of Ajax's recent growth happened in subdivisions sold post-Feb 2021 to builders enrolled with Tarion. If your home is within the 7-year Tarion warranty and a C-NRPP certified test reads at or above 200 Bq/m³, your builder is required to fund mitigation up to $50,000. The test ($99 with us) is the gateway.
Most Ajax homes are new. Does newer construction mean lower radon risk?
Not necessarily. Newer homes are often more airtight, which can actually trap radon more effectively than older draftier homes. We have tested 5-year-old Ajax builds with results above 200 Bq/m³. The only reliable way to know your home's level is to test.
About these numbers
Population and home counts come from Statistics Canada's 2021 Census of Population 1 . These are exact figures.
The per-city radon percentage is a synthesis estimate, not a number pulled directly from any single source. We blend three datasets: Health Canada's Cross-Canada Survey of Radon Concentrations in Homes (the 2012 federal baseline) 4 , the University of Calgary's Evict Radon citizen-science mapping project 2 , and Take Action on Radon's aggregated municipal data 5 .
The federal baseline often reports lower above-guideline rates than the newer citizen-science projects. Two reasons: the federal study is now 14+ years old, and the newer citizen-science projects sample more aggressively in homes built under tighter modern building codes (which trap soil gas more effectively than older draftier construction). Where these sources disagree on a specific municipality, our published percentage lands on a working midpoint. So if you click through to the federal survey expecting to find "Ajax 6%" verbatim, you won't. The federal survey may report a lower figure for the same area, and the citizen-science maps often report a higher one. We chose the midpoint because no single source is definitive.
None of this gives you a definitive percentage for your specific home. Two homes on the same street can test 30 Bq/m³ apart. The only reliable answer for your home is a test on that home.
References
- 1.Statistics Canada. Census Profile, 2021 Census of Population↗ (2022)↩
- 2.Evict Radon. Evict Radon National Study↗↩
- 3.Health Canada. Government of Canada Radon Guideline↗↩
- 4.Health Canada. Cross-Canada Survey of Radon Concentrations in Homes: Final Report↗ (2012)↩
- 5.Canadian Association of Radon Scientists and Technologists (CARST). Take Action on Radon↗↩
See our full research bibliography at /sources.