Book & place
Detectors go in as the heating season starts.
How it works
Identify. Measure. Fix. Verify.
Radon is invisible, so every step is about turning it into numbers you can trust: where to test, what the average is, what system your house needs, and proof it worked.
1. Identify
Book, and we plan the right test
A short call to learn about your home: foundation, how you use the basement, any past results. We pick test locations by Health Canada’s protocol: the lowest level where someone spends four or more hours a day.
What we ask about
- Basement bedrooms, offices or suites
- Sumps, drains and crawlspaces
- Additions on different foundations
- Real estate or closing deadlines
2. Measure
An early reading at 2 weeks, the full result at 91 days
A certified technician places long-term alpha-track detectors where they’ll give a true reading: away from drafts, sumps and exterior walls, with a calibrated monitor beside them for the first 2 weeks. That gives you an early reading. You live normally, and after 91+ days we send the detectors to an accredited lab.
91 days minimum.
Radon swings hour to hour and season to season. Three months or more, through the heating season, gives a true annual average. An early reading at day 14 tells you sooner if it’s clearly high.
Radon swings hour to hour and season to season. Three months or more, through the heating season, gives a true annual average. An early reading at day 14 tells you sooner if it’s clearly high.
3. Understand
Your result, explained plainly
You get a written report with your average concentration, what it means against Health Canada’s guideline, and what (if anything) to do next. No pressure: about seven in eight Ontario homes come back below 200.
Health Canada’s timelines
- Under 200 Bq/m³: no action needed
- 200–600 Bq/m³: reduce within 2 years
- Over 600 Bq/m³: reduce within 1 year
4. Fix
A mitigation system designed for your house
If your level is high, we assess the foundation, run a sub-slab communication test and design an active soil depressurization system to CAN/CGSB-149.12. Most homes are done in a day, with a fixed price agreed up front.
Every install includes
- Sealed sump and major cracks
- Quiet, efficient fan outside living space
- Manometer so you can see it working
- Clean pipe route you approve first
5. Verify
Proof it worked
We confirm suction across the slab on install day, then you run a follow-up long-term test. If it isn’t under 200 Bq/m³, we come back and adjust the system at no cost.
After the install
- Short-term check after 24 hours of operation
- Long-term follow-up test
- Re-test every few years or after renovations
Timeline
What a typical year looks like
Early reading
Your first number at 2 weeks. If it’s clearly high, you can plan a fix now.
Full result
After 91+ days: lab analysis, your report, a call, and a quote if needed.
Fix & verify
One-day install, then a follow-up test next heating season.
A clearly high early reading can move the fix up to November, with the follow-up test confirming it worked.
Testing can start any time of year. Heating-season tests give the most representative results.
Already have a number?
Start at step three
If you’ve tested yourself, enter your result to see what Health Canada recommends.
Enter a number to see what it means.
Health Canada’s guideline is 200 Bq/m³, based on a long-term test of at least three months.
Questions
About the process
How long does the whole process take?
You get an early reading at 2 weeks and the full result after at least 91 days. If mitigation is needed, we can usually assess within a couple of weeks and install in a day. The follow-up long-term test then runs through the next heating season.
Can I skip the long-term test and go straight to mitigation?
If you already have a long-term result above 200 Bq/m³, yes. If your 2-week early reading is 400 Bq/m³ or more, your long-term result is very likely high too, and you can book the fix without waiting; a long-term test after the install confirms it worked. Near 200, we recommend waiting for the 91-day result.
Do I have to use you for mitigation if you test?
No. Our tests are independent. You’ll get the same report and advice either way.
Know your number in one heating season.
Book a radon test with a C-NRPP certified technician: an early reading at 2 weeks, the full result at 91 days. If it’s high, we’ll design a fix and prove it worked.