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We have seen every air quality concern a home can have. Here are the problems our clients call us about most often.

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Elevated Radon Levels in the Home

Radon is an odourless, colourless radioactive gas that seeps from the soil and bedrock beneath homes and accumulates in basements and lower levels. Health Canada sets the residential action level at 200 Bq/m3, and many older homes exceed this without any visible or detectable sign. We measure radon concentrations using professional-grade sampling and provide clear guidance on mitigation if levels require action.

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Carbon Monoxide From Gas Appliances

Carbon monoxide is produced when gas appliances, furnaces, water heaters, or fireplaces do not combust fuel completely, typically due to a cracked heat exchanger, blocked flue, or improper venting. Because it is odourless and colourless, it can reach dangerous concentrations before anyone realizes a problem exists. We test CO levels at multiple points in the home and identify the appliance or venting condition that may be contributing.

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High VOC Levels From Building Materials

Volatile organic compounds off-gas from paints, adhesives, flooring underlayment, cabinetry, furnishings, and cleaning products, often at elevated rates in newly renovated spaces. Persistent high VOC exposure is linked to respiratory irritation, headaches, and long-term health effects. We measure VOC concentrations across the home and identify whether ventilation adjustments or specific source removal is the appropriate response.

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Elevated Mold Spore Counts

Mold can establish in wall cavities, under flooring, in ductwork, and behind finishes long before it becomes visible from living areas. Elevated airborne mold spore counts often trace back to a moisture source such as a slow leak, inadequate vapour barrier, or insufficient bathroom or kitchen ventilation. We measure spore counts and help identify the moisture conditions that are allowing growth to occur.

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High Humidity Causing Mold and Condensation

Relative humidity that stays persistently above 50 percent creates conditions for mold growth, condensation on cold surfaces, deterioration of wood structural elements, and general discomfort. In cold-climate homes, high indoor humidity also leads to frost and moisture accumulation in attic spaces and wall assemblies. We measure humidity levels across the home and identify where mechanical ventilation or dehumidification may be needed.

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Fine Particulate Matter in Living Areas

Fine airborne particles smaller than 2.5 microns in diameter penetrate deeply into the respiratory system and are linked to cardiovascular and pulmonary health concerns with long-term exposure. Sources include combustion appliances, candles, attached garages, and outdoor infiltration through gaps in the building envelope. We measure particulate concentrations at multiple sizes and identify whether filtration or source control is the more effective response.

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Poor Ventilation and Stale Air

Carbon dioxide concentrations above 1,000 ppm in occupied spaces indicate that fresh air exchange is insufficient for the number of occupants and activities in the home. Inadequate ventilation allows all other indoor pollutants to accumulate more rapidly. We measure CO2 as a ventilation proxy and assess whether the home's mechanical ventilation system is providing adequate fresh air exchange for the building's occupancy and envelope tightness.

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Musty or Stale Smell Throughout the Home

Persistent stale or musty air typically points to a combination of insufficient ventilation, elevated humidity, and a biological source such as mold or accumulated organic debris in the ductwork or drain pan. While the symptom is common, the specific cause varies by home. We assess the contributing factors through systematic measurement rather than assuming a single source is responsible for the overall air quality condition.

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Unexplained Headaches or Dizziness at Home

Persistent headaches, nausea, or lightheadedness that improve after leaving the home can sometimes indicate low-level carbon monoxide or gas exposure from an undetected leak or combustion issue. If multiple household members experience these symptoms without an obvious cause, a full indoor air quality assessment is warranted immediately. We test the entire gas supply system, all appliance connections, and air quality across the home.

Reviews

What Our Customers Say

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Found mold we never would have caught

We had persistent headaches and couldn't figure out why. The technician from Gas Services Edmonton found elevated mold spores behind a wall we never suspected. Glad we finally got it tested properly.

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Explained the report in plain language

The written lab report had a lot of numbers I didn't understand at first, but the technician walked through every line and told us exactly what mattered. No pressure to buy anything extra.

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Good test, results took a bit longer

The appointment itself was quick and professional, but our results took closer to two weeks instead of the estimated ten days since we tested for several contaminants at once. Worth the wait though.

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Peace of mind before buying a house

We wanted air quality testing done before closing on an older home. Gas Services Edmonton got us a full report within a week and confirmed everything was within safe ranges, which made the decision much easier.

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Radon levels came back clear

We were worried about radon given our home's age and location. The test came back well within safe levels and the technician explained exactly how the sampling worked. Reassuring to have real numbers instead of guessing.

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Honest about what didn't need attention

I expected to be told we needed expensive remediation but the Gas Services Edmonton technician was upfront that our readings were normal and nothing needed fixing. Appreciated the honesty over an unnecessary upsell.

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