About Demko Ventilation Services Ltd.

Demko Ventilation Services Ltd. has been creating livable interior environments in Alberta since 1984. Co-founders Dennis and Shirley Mikasko are proud of Demko Ventilation Services’ exceptional reputation, founded on quality workmanship, knowledge and experience.


Over the past 31 years, comfort and reliability have been the hallmark of Demko Ventilation Services. Our goal is to create comfortable and safe living and work spaces by providing excellent heating and air conditioning systems, good air quality through proper ventilation, and state-of-the-art electrical control systems. We take pride in meeting your climate comfort needs by creating healthy, comfortable and warm interior environments.


Our experienced service team includes certified and experienced electricians and technicians. Our certification and training include:

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