ST. ALBERT, AB – In the summer of 2024, Edmonton recorded 16 days above 30°C, the second highest count on record according to Edmonton Weather Nerdery’s annual temperature analysis. For most residents it was an uncomfortable stretch. For HVAC technicians across the region, it was one of the busiest emergency seasons in recent memory.
The cause was not a sudden wave of equipment failures. It was the predictable result of years of deferred maintenance meeting its breaking point under sustained heat load.
What the Heat Wave Revealed
Service calls logged during the 2024 heat event followed a clear pattern. Systems that failed were concentrated among homes that had skipped seasonal maintenance for two or more consecutive years.
Curtis Shankowsky, a Journeyman HVAC Technician with Canadian Climate Control, was among the technicians fielding calls throughout that period. “Most of what we were seeing had nothing to do with the equipment itself,” Shankowsky said. “Dirty evaporator coils, low refrigerant from slow leaks that had never been caught, capacitors that were already showing wear. These are all things a spring inspection picks up. None of it should have made it to July.”
The pattern is consistent with guidance from the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI), which recommends annual furnace inspections and seasonal tune-ups for residential systems, noting that deferred maintenance leads to hazardous dust and debris buildup in blowers and electrical components that compounds over time.
Why Alberta Is Harder on Equipment Than Most Places
The swing between a January low of -30°C and a July high above 30°C puts Alberta homes through one of the widest thermal operating ranges of any densely populated region in North America. Furnaces and air conditioners in St. Albert do not get a mild season to recover. They move from peak heating demand directly into peak cooling demand, with only a narrow spring window in between.
According to ENERGY STAR, nearly half of a home’s total energy use goes to heating and cooling, making the HVAC system the single largest driver of residential utility costs. A well-maintained system running efficiently has a measurable impact on monthly bills. A neglected one runs harder and longer to deliver the same result.
Industry data consistently shows that a properly maintained system can operate 20 to 30 percent more efficiently than a neglected one, according to maintenance guidance published by Sears Home Services. Over several years without service, that gap becomes significant on both the utility bill and the equipment lifespan.
The Installation Problem Nobody Talks About
The 2024 heat season also exposed an issue that gets less attention than maintenance: systems that underperformed were not always the result of neglect. A meaningful portion involved equipment that had been improperly installed in the first place.
This is not a minor variable. ENERGY STAR notes that improper installation can reduce system efficiency by up to 30 percent, costing more on utility bills and potentially shortening the equipment’s lifespan regardless of how well the unit itself was built.
Improper refrigerant charging, ductwork that does not match system airflow requirements, and connections that fall outside Alberta Safety Codes can all degrade performance silently for years. The system appears to be working. It is just not working well. The failure, when it finally comes, looks sudden. The root cause is not.
“Good equipment is only half of the equation,” Shankowsky said. “The install is the other half. A quality furnace put in poorly is going to give you problems that a quality furnace put in properly never would.”
Canadian Climate Control’s approach to St. Albert HVAC service is built around that principle, treating installation workmanship as the core deliverable rather than an afterthought to the equipment sale.
What Homeowners Should Know Going Into Next Season
The practical takeaway from the 2024 heat season is straightforward. Scheduling a spring inspection before cooling demand peaks is the single highest-value action a St. Albert homeowner can take to avoid emergency service calls in summer. A fall furnace inspection serves the same function ahead of heating season.
Beyond scheduling, homeowners selecting a contractor for repair or new installation should request licensing and insurance documentation before work begins, and ask for a written scope that specifies the installation standards being followed. HRAI requires its contractor members to maintain valid trade certificates, licenses, and insurance coverage as a baseline condition of membership, which gives homeowners a starting point for vetting who they hire.
The quality of the install determines how well the equipment performs for the next decade, not just the first winter. Alberta’s climate is not going to become more forgiving, and the homes that hold their comfort and efficiency through the next extreme season will be the ones whose owners treated maintenance as a fixed cost rather than something to schedule after something goes wrong.
