Jimmie Thom, HVAC Designer and Master Electrician

HVAC-Designer-Master-ElectricianJimmie Thom is a second generation Electrician as well as a Heating & Air Conditioning mechanic. His love of both trades was learned helping his father on service calls as a young boy. From the age of five, he would hold flashlights and pass tools while his father explained what he was doing.

Today Jimmie helps his clients by designing highly efficient and effective heating and cooling systems for their homes and business. He is often called in to troubleshoot systems other contractors have designed, but that aren’t working properly.

Jimmie has over thirty years’ experience designing and building residential, commercial, and institutional heating and cooling systems. He and his team have successfully worked on homes, businesses, hospitals, and schools all over Eastern Ontario.

Is there a secret to Jimmie’s abilities? In spite of his experience and skill, Jimmie avoids making assumptions without all the facts.

“I always ask home owners a lot of questions about their house, and about what they’re looking for,” he says. “You can’t solve a problem if you don’t understand what it is.”

When helping his team troubleshoot issues, his motto is “test and test again – if you don’t test you’re just guessing.”


Jimmie holds the following licenses and certificates:

  • Refrigeration Mechanic license, Algonquin College (at age 20)
  • Gas Fitter Level 2 license
  • Electrician’s license – 1989
  • Master Electrician Certification – 2008
  • Air Balancing Certificate from National Comfort Institute
  • Residential Mechanical Ventilation Installation – Level I and II – HRAI (the Heating, Refrigeration and Air Conditioning Institute of Canada)
  • Residential Heat Loss and Heat Gain Calculations – HRAI
  • Residential Air System Design – HRAI
  • Residential Radiant Hydronics Design – HRAI
  • Indoor Air Quality (IAQ) for Residential and Small Commercial – HRAI
  • Blower Door Test Equipment
  • Certified Residential Geothermal Designer from IGSPA (International Ground Source Heat Pump Association)
  • Radiant Infloor Heating Design
  • Dozens of manufacturer’s technical training certificates

Treating the Whole Patient

Jimmie’s successful approach has evolved over the decades from deep experience with a wide variety of issues.

“Airflow and air pressure in a home are like blood pressure in a person,” Jimmie sums up. “High air pressure and high static in ductwork can be signals of issues that need to be corrected.”

His love of learning is a big part of his comprehensive understanding about how all of the different systems in a home work together. “The blower door testing course I took really showed me how building design, and construction can impact heating and cooling,” he says.

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