Why Winter Is the Right Time to Test in the Okanagan

Testing requires 12 hours of closed-house conditions before and during the test. In an Okanagan winter, homes are already sealed up and heated for weeks at a stretch, which makes late fall through early spring a practical, low-effort testing window.

A 90+ day long-term test run through winter will naturally include those higher-radon, closed-house months, which is part of why Health Canada treats long-term testing as the more complete picture.