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Professional HVAC Repairs and Services in Edmonton

Demko Ventilation Services Ltd. has been creating comfortable interior environments in Alberta since 1984. 

Over the years, our quality workmanship, knowledge, and experience have resulted in our exceptional reputation and success.

Over the past 35 years, comfort and reliability have been the hallmark of Demko Ventilation Services Ltd. Our goal is to create a comfortable, safe living and work environments by providing excellent heating and air conditioning systems, 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 with good air quality. Contact us for a free estimate.

Our Professional Team

A big part of our success is our hardworking and dedicated team at Demko Ventilation Services Ltd. Our team includes some of the most experienced and courteous professionals in our area. They are

Shirley and Dennis Mikasko


Demko Ventilation Services Ltd. was started over 35 years ago by Shirley and Dennis Mikasko. With the intention of providing Edmonton with reliable HVAC repair and maintenance services, they ensured that all their staff was trained and had the information to perform their job efficiently.

Janine Vandrasco


Janine Vandrasco has been a part of the Demko Ventilation Services Ltd. family for over 19 years. In 2017, she took over the ownership of the company and ensures that it continues to run on the values it was built on.

Brian Dewolfe

Sheet Metal Journeyman

Brian Dewolfe has been with Demko Ventilation Services Ltd. for over 30 years. He is an experienced, certified sheet metal journeyman and a foreman.

Bryan Myhre

Journeyman Electrician

Bryan Myhre has been with Demko Ventilation Services Ltd. for over 17 years. He is an experienced and certified journeyman electrician. As a service technician, he specializes in installing, repairing, and servicing HVAC units.

Brian Berezanski


Brian Berezanski has been with Demko Ventilation Services Ltd. for over 23 years. He is an electrical service technician and an installer who specializes in MUA units.

Volod Miniailo

HVAC Technician

Clint Gervais

Sheet Metal Journeyman

Training and Certifications

We’ve ensured that all our team members receive the right training and certifications to provide you with professional services. We prioritize safe and ethical work practices. Our certifications and training include

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