Environmental Testing Calgary | Indoor Air Quality & Diagnostic Services
Serving Calgary, Airdrie, Cochrane, Okotoks, Chestermere, High River, Diamond Valley, and Surrounding Communities
Your Calgary home should feel comfortable and safe.
If it feels stuffy, smells off, gives you headaches, or your family feels better the moment you step outside — something in your indoor environment deserves a closer look. Calgary homes face one invisible risk that most homeowners never think to test for: radon gas.
The uranium-bearing geology beneath the Bow and Elbow River basins produces radon that seeps up silently and accumulates in basements and lower living areas. You can't see it, smell it, or taste it — but long-term exposure is the leading cause of lung cancer in non-smokers, and Health Canada confirms that Calgary has some of the highest radon levels in the country.
Environmental testing — also called indoor air quality testing or IAQ assessment — uses specialized equipment and laboratory analysis to measure what is actually in your air. It is not a visual inspection. It finds what eyes cannot see and what your body sometimes feels before your mind connects the dots.
Why Calgary Homes Face a Unique Indoor Environment Challenge
Calgary's climate is unlike any other major Canadian city — and it creates indoor air quality and building performance risks that are specific to this region.
The Chinook Effect
Calgary experiences Chinook winds — warm, dry air masses that descend rapidly from the Rocky Mountains and can raise temperatures by 20°C or more within hours. A home sitting at -25°C in the morning can be exposed to +10°C temperatures by afternoon. This is not a seasonal shift — it can happen multiple times in a single week throughout winter.
The result is a building envelope under constant thermal stress. Materials expand and contract repeatedly and rapidly. Seals crack. Caulking fails. Joints open. This is not normal wear and tear — it is accelerated micro-level expansion and contraction that Calgary homes experience far more frequently than homes in Vancouver, Toronto, or Edmonton.
Calgary's Clay Soil — The Foundation and Radon Factor
Calgary sits on expansive clay soil that absorbs water and swells, then dries and shrinks. Combined with Chinook-driven freeze-thaw cycles, this creates foundation movement from expansive soils that opens new entry points for soil gases — including radon.
The uranium-bearing bedrock and glacial till of the Bow and Elbow River basins make Calgary one of Canada's highest-risk cities for residential radon exposure. Sump pits, floor drains, and foundation cracks in Calgary homes are not static — they change with the seasons, and every new crack or gap is a potential radon entry point.
Signs Your Calgary Home May Have an Indoor Air Quality Problem
Most indoor air quality problems are invisible — but your home and your body often signal them before you think to test:
Unusual or persistent odours — musty, chemical, or stale
Stuffy air or noticeable lack of air movement
Cold spots, condensation on windows, or visible moisture intrusion
Mold or mildew growth on walls, ceilings, or around windows
Family members experiencing unexplained headaches, fatigue, or eye and throat irritation
Symptoms that improve noticeably when you leave the home
Adverse reactions after renovations, new furniture, or moving into a new home
Excessive dust accumulation despite regular cleaning
Pets or previous tenants — pet allergens and biological material persist long after animals leave a property
Any of these signs warrants a professional assessment. The source is not always obvious — and the wrong remedy wastes time and money.
📄 Read our full guide: Signs Your Calgary Home May Have an Indoor Air Quality Problem
Radon Testing
Radon is a naturally occurring radioactive gas produced by the decay of uranium in soil and rock. It enters homes through foundation cracks, sump pits, and soil contact points — and accumulates in basements and lower levels where it becomes a serious long-term health risk. It is colourless, odourless, and tasteless. The only way to know your radon level is to test.
Health Canada's guideline is 200 Bq/m³. Calgary and southern Alberta — sitting on the uranium-bearing geology of the Bow and Elbow River basins — consistently record some of the highest average residential radon levels in Canada.
Radon testing is not a visual inspection. It requires an approved testing device placed in the lowest lived-in level of your home for a defined period. It is the most important environmental test for any Calgary home with a basement.
Thermal Imaging
Thermal imaging — also called infrared inspection or thermographic scanning — uses a calibrated infrared camera to detect temperature differences in walls, ceilings, and floors. These temperature differences reveal hidden moisture accumulation, insulation gaps, heat loss pathways, and electrical hotspots that are invisible during a standard visual inspection.
In Calgary's climate, thermal imaging is particularly valuable for detecting moisture intrusion from freeze-thaw cycles at wall and roof assemblies, insulation failures causing cold spots and elevated heating costs, and attic rain — frost buildup from inadequate ventilation causing hidden moisture damage behind ceilings.
Thermal imaging does not measure air quality or identify biological or chemical contaminants. It detects physical conditions inside building assemblies that create risk, energy loss, or conditions where mold can develop.
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