Who is Clément Marchand?

Founded by Clément Marchand over 52 years ago, Clement Marchand Natural Gas Services Ltd. has built an enviable reputation for quality HVAC services across the Ottawa region. Dedicated to heating and cooling solutions, our owner and his team work hard to ensure your complete satisfaction by offering high-quality HVAC products and personalized service to residential and commercial customers in Ottawa.

Since 1971, our family has been committed to your year-round comfort and well-being. We specialize in energy-efficient natural gas heating and cooling systems, all backed by an excellent manufacturer's warranty and installed by our skilled, trained, and licensed HVAC technicians.

After a successful tenure leading the family business, Clément Marchand is passing the torch to his children, Chantal and Patrice. Experienced and fully qualified, they are committed to continuing the tradition of delivering high-quality HVAC products and exceptional service. Our trucks — easily recognized by their distinctive blue and white colors — proudly serve the Ottawa region 24 hours a day, 7 days a week. Our expertise spans residential and commercial HVAC installation, maintenance, and service.

“I'm wondering why I never contacted these guys sooner! Seriously, they all have commendable talent in their respective fields and knocked my concept out of the ballpark. Thanks for an amazing experience!”

      
 4.8
 4.8
 Top Rated Service 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
 
 
 
 
 
   
 
 
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   Lucie Dubeau 
 0 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We have been using this company for years and have always received an excellent service.  We would definitely recommend this company to service your HVAC system.
  
 
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   Raymond Peterkin 
 1 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Very professional service and friendly technician.
  
 
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   Kathryn X 
 2 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Regular annual cleaning. Samual arrived when expected and spent all the time needed to make sure my boiler would continue to work efficiently.  This boiler is more complex and took a lot of technical knowledge to ensure continued operation.
  
 
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   Alan Bolster 
 3 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Excellent, on-time and efficient.  Alex provided great, friendly service and advice.  Both furnace and gas fireplace were serviced.
  
 
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   Gary Thiessen 
 3 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dillon allowed me to watch him as he worked. He explained why he did each step as he proceeded through the entire furnace maintenance and servicing procedures. A real educational experience for me. Dillon is a credit to his trade/profession.
  
 
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   Marc Gingras 
 3 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Advanced HVAC provided me with the lowest submission out of 3 contractors.  Estimator and techniciens were very professional and knowledgeable.  Installation was was completely flawless and performed few days after initial contact.  Highly satisfied.
  
 
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   alphonse kawet 
 5 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Good quality workmanship.
  
 
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   Francis Trepanier 
 7 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Sam - Sam Bond was very thorough and provided a service that I was pleased with.
  
 
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   Michèle Tremblay 
 9 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Very good service. On time, polite and efficient.
  
 
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   Olivier Chabot 
 12 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We are very satisfied with their services. They installed a heat pump and changed our furnace.