Radon Testing in Vernon & the North Okanagan
The one thing a four-hour inspection can’t tell you
A c4u inspection covers over 1,500 points in three and a half to four hours. Radon is not one of them, and no honest inspector will tell you otherwise.
Radon can only be measured over months, not hours. That’s not a limitation we’re apologizing for — it’s the reason the result is worth having. What you get at the end isn’t an impression of your home on one particular afternoon. It’s a real number.
What radon is
Radon is a radioactive gas produced by the natural breakdown of uranium in soil and rock. It has no colour, no smell and no taste, and it is present in outdoor air everywhere at harmless concentrations. The problem is what happens when it seeps out of the ground and into an enclosed space — through foundation cracks, sump pits, floor drains, service penetrations and slab joints — and accumulates instead of dispersing.
Health Canada’s guideline for indoor air in a home is 200 becquerels per cubic metre (200 Bq/m³). Below that number, no action is recommended. Above it, remedial measures are recommended, and the higher the reading, the sooner they should be taken.
Source: Health Canada, Guideline for Radon in Canadian Homes.
Why the BC Interior is different
Radon is a regional problem before it is an individual one. How much of it reaches your living space depends on the ground beneath the house, how the house is built and how it’s ventilated — and the ground here is not neutral. The BC Interior is one of the parts of the country where readings run high.
The BC Centre for Disease Control’s data puts it plainly: over 30% of homes tested in the Interior Health region come back above the Health Canada guideline.
Source: BC Centre for Disease Control, Interior Health region radon testing data.
That figure describes the Interior Health region as a whole. It is not a number for Vernon, or for any other town in it, and it is not a figure you can apply to your own house — it says nothing about which side of the line you’re on. Two houses on the same street can return very different results, which is exactly why the only useful radon number is the one measured in your own home. But it does tell you the odds here are nothing like a coin toss you can ignore, and it is a large part of why this is a test worth doing in this part of the province rather than a curiosity.
Why the test takes 91 days
Radon levels move constantly. They rise and fall with the weather, the wind, the barometric pressure, whether the furnace is running and whether a window is open. Measure for two days and you have measured two days of weather. A valid measurement is a long-term test of at least 91 days, run during the heating season with the windows closed — the conditions under which your home actually holds air, and a period long enough for the average to mean something.
Winters up here close a house up properly, which is part of why the heating-season requirement is straightforward to meet in the North Okanagan. Place a detector in the autumn and the conditions the test needs are the conditions you were going to be living in anyway.
So here’s what booking a radon test with c4u actually involves, and it’s deliberately unglamorous:
- 1
We place the detector. A long-term detector goes in the lowest lived-in level of the house — the storey where people actually spend time — positioned properly, away from drafts, vents and exterior walls. It is small, silent and needs nothing from you.
- 2
It sits there for at least 91 days. Through the heating season, with the house lived in normally and the windows shut as they would be anyway. You carry on with your winter.
- 3
We retrieve it and interpret the result. The detector goes for analysis, and you get your number, what it means against the 200 Bq/m³ guideline, and a straight recommendation about what to do next.
If someone offers you a radon reading during a home inspection, what they are giving you is a snapshot, not a measurement. It may be interesting. It is not your number.
Who should test
- Anyone who has never tested. Age, style and condition of the house are poor predictors — new, well-sealed homes are not exempt. That cuts both ways here: an 1890s East Hill house and a new hillside build are equally worth measuring, and neither can be ruled in or out by looking at it.
- New owners, in their first winter in the house. Radon does not fit inside a subject-removal window, so treat it as a first-year job rather than a condition of purchase.
- Households where the lower level is a bedroom, an office, a suite or a playroom — where people spend hours, not minutes.
- Anyone who has done significant work on a basement, foundation or heating system since they last tested.
- Sellers who want a current measurement on record, particularly in an area where informed buyers are starting to ask.
If your number comes back high
A high reading is not an emergency, and it is not a reason to leave the house. Radon is a long-exposure risk, which means you have time to deal with it properly — and it is a solvable problem. Elevated levels are routinely brought down, usually by a sub-slab depressurization system, and the fix is nearly always less dramatic and less expensive than people brace for.
What we will not do is fix it ourselves. c4u measures and reports; we do not mitigate. If your result is above the guideline we’ll explain what the number means and refer you to a certified radon mitigation professional, then you can have us re-test afterwards to confirm the system did what it was meant to. Testing and mitigation being separate hands is a feature, not an inconvenience — the person measuring your radon has no reason to want the number to be high.
Book a radon test
Radon is invisible and odourless, but it is measurable, and measuring it is the only part you have to get right. Serving Vernon, Coldstream, Armstrong, Spallumcheen, Enderby and Lumby, then south through Lake Country, Kelowna and West Kelowna. c4u Inspections has been inspecting Okanagan property since 2005 and works from Vernon.
Don't Buy Blindfolded — Let c4u see for you