Burlington radon testing and mitigation
186,948 residents. 1 in 10 homes test above the Health Canada radon guideline.
Why Burlington homeowners test
Burlington's position on the Niagara Escarpment means higher-than-average bedrock radon in some areas. Escarpment-side homes warrant testing.
Our Burlington 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
Burlington-specific questions
Why is Burlington's average radon higher than most GTA cities?
Bedrock geology. Burlington sits on or near the Niagara Escarpment, which is dolostone and shale bedrock with naturally higher uranium content than the glacial till of central Mississauga or Toronto. Higher uranium in bedrock means higher radon emission into soil gas. Burlington's ~70 Bq/m³ average reflects this.
Do you service all of Burlington including Aldershot and Brant Hills?
Yes. Every Burlington neighbourhood including Aldershot, Brant Hills, Tyandaga, Roseland, Maple, Headon Forest, Alton Village, Tansley Woods, and the downtown core. Same $99 pricing, no distance surcharge.
Are escarpment-adjacent Burlington homes higher risk?
Yes, on average. Homes in Tyandaga, Brant Hills, and the western edge of Burlington (closer to the escarpment ridge) tend to test higher than homes near the lakefront. Escarpment proximity increases the chance of bedrock-source radon entering through foundation cracks. About 1 in 10 Burlington homes tests above the 200 Bq/m³ guideline overall, with the rate higher in escarpment-side neighbourhoods.
My Burlington home is in Alton Village or another post-2021 subdivision. Tarion coverage?
Yes if purchased from a builder on or after Feb 1, 2021 and inside the 7-year Tarion warranty. Alton Village, Orchard, and the new builds in north Burlington are squarely in this window. C-NRPP certified test at or above 200 Bq/m³ triggers builder-funded mitigation up to $50,000.
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 "Burlington 10%" 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.