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1How Much Does Radon Testing Cost in Canada?
Last updated: By RadonIndex Research Team
A long-term alpha track kit with mail-in lab analysis costs $30 to $60 per Homeowner.ca, and the university-led Evict Radon National Study sells an at-cost kit for $53.99. A reusable consumer continuous monitor runs $200 to $350. Whichever you buy, the measurement guidance is built around a minimum three-month test during the heating season, so a same-day reading is a screening result rather than a decision.
What does each way of measuring radon cost?
The 3 prices below rest on 2 independent published sources, and every figure was re-read in the source it names before this page went up. Where a figure could not be found in the source credited with it, the row was removed rather than repaired, so a narrow range here means the evidence is narrow.
| Item | Typical range | Unit | Source |
|---|---|---|---|
| Long-term alpha track test kit, mail-in lab analysis | $30–$60 | per kit | Homeowner.ca |
| Evict Radon National Study at-cost kit | $53.99–$53.99 | per kit | Evict Radon National Study |
| Consumer continuous radon monitor | $200–$350 | per device | Homeowner.ca |
What drives the price?
Site access, the amount of prep and the material grade move radon testing pricing more than anything else in Toronto. Each factor below comes from the same sources as the table, so you can read a quote and see where the money goes.
- Test length. A long-term alpha track kit is the cheapest route and the one guidance asks for.
- Whether you want the device back. A monitor costs several times a kit but can be reused and moved between rooms.
- Professional placement. Hiring a certified measurement professional adds labour that no source publishes a Canadian range for, so ask for it in writing.
How did we research these numbers?
Every price on this page comes from a named Canadian source, and where sources disagreed we widened the range rather than pick a favourite. Here is how RadonIndex reconciled the numbers.
- A same-day radon number is a screening result. Health Canada asks for a minimum three-month test during the heating season before any decision.
- Place the detector in the lowest lived-in level of the home, not an unused basement corner.
- We hold no pricing from the GTHA companies listed on this site. Ask them directly what a measurement costs.
Sources
Who can do the work?
RadonIndex lists 31 radon testing companies across the Greater Toronto and Hamilton Area, rated 4.93★ on average across the 23 with three or more reviews. The three below rank highest on the RadonIndex Score described on our methodology page (August 2026 data). None of them set the prices above.
- T2Top rated
TRU Inspections
68/100 RadonIndex Score
- Says it is insured
- Says it has been going since 2004
VaughanRadon Testing - R3
What do the terms on a radon testing quote mean?
These are the words that appear on a radon testing quote and decide what you are actually being charged for. Each one is defined the way a contractor uses it.
- Alpha track detector
- A small plastic chamber holding a film that records tiny marks as radon decays. It sits in the home for months, then goes to a lab that counts the marks. The cheapest long-term measurement.
- Becquerel per cubic metre (Bq/m3)
- The unit radon is reported in. Health Canada's guidance is to act above 200 Bq/m3; the World Health Organization uses 100. Neither is a safety threshold, because risk falls continuously as the level falls.
- Long-term test
- A measurement of three months or more, taken during the heating season. Radon swings hour to hour and season to season, so anything shorter describes a few days rather than a house.
- Continuous radon monitor
- A reusable electronic device that samples the air constantly and shows a running reading. Useful for watching trends and for re-checking after mitigation, but the decision still rests on a long-term average.
- C-NRPP
- The Canadian National Radon Proficiency Program, which certifies individuals to measure or mitigate radon. Certification is held by a person, not automatically by the company they work for.
What else should I price before deciding?
Radon Testing is rarely quoted on its own. These guides cover the work most often bought alongside it, each researched the same way and priced from named sources.
Frequently asked questions
How long does a radon test have to run?
- At least three months, during the heating season, in the lowest lived-in level of the home. Radon swings hour to hour and season to season, so a short test tells you about a few days rather than about your house.
Is a cheap kit as good as a monitor?
- For deciding whether to mitigate, yes. A long-term alpha track kit at $30 to $60 gives the three-month average that guidance is written around. A $200 to $350 continuous monitor is useful for watching trends and re-checking after mitigation, but the decision still rests on three months of data.
Do I need a certified professional to test?
- Not for a first test. A do-it-yourself long-term kit is a valid measurement. A C-NRPP certified measurement professional is worth it for a real estate transaction, a commercial building, or a result you intend to act on with a large spend.
Questions to ask your contractor
- Is this a long-term test of three months or more, or a short screening test?
- Which lab analyses the detector, and are they C-NRPP recognised?
- Where exactly will the detector be placed, and is that the lowest lived-in level?
- What does the written report include beyond a single number? What testing costs
- If the result is above the guideline, do you also sell mitigation? Ask this before the test, not after.