Vaughan radon testing and mitigation
323,103 residents. 1 in 20 homes test above the Health Canada radon guideline.
Why Vaughan homeowners test
Vaughan combines some of the GTA's newest construction (Kleinburg, Thornhill) with mature neighbourhoods in Concord and Woodbridge. Basement use varies dramatically across this demographic.
Our Vaughan 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
Vaughan-specific questions
Do you service all of Vaughan including Kleinburg and Woodbridge?
Yes. Every Vaughan neighbourhood including Maple, Woodbridge, Concord, Thornhill, Kleinburg, Vellore Village, Patterson, Sonoma Heights, and the new Vaughan Metropolitan Centre. Same $99 testing price, no distance surcharge.
Which Vaughan neighbourhoods test highest on average?
Older Woodbridge and Maple homes with finished basements tend to top the list because of foundation construction patterns of the 1970s and 1980s. Vellore Village and Patterson, despite being much newer, can also produce high readings because their tight modern envelopes trap radon when soil-level gas is present.
My Vaughan home is a new build in Vellore, Patterson, or Kleinburg. Does Tarion cover radon?
Yes if your home was purchased from a builder on or after Feb 1, 2021 and is within its 7-year Tarion warranty. Vaughan has one of the largest inventories of Tarion-eligible new builds in the GTA. If a C-NRPP certified test reads at or above 200 Bq/m³, the builder is required to fund mitigation up to $50,000.
How much radon difference between a Maple bungalow and a new Patterson detached?
Less than you would think. The Maple bungalow has older foundation cracks but more natural ventilation; the new Patterson home has a tighter envelope that traps gas more effectively. We have seen 200+ Bq/m³ readings in both. The only reliable answer is a test on the specific home.
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 "Vaughan 5%" 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.