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   Top Rated Service
   4.8 Excellent rating Last 12 months 
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  Verified by Trustindex Based on real customer reviews Learn more 
 
 
 
 
 
 
 
   
 
 
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   kim teschner 
 11 days ago
 
 
 Trustindex verifies that the original source of the review is Google. My boiler needed immediate replacement and after contacting different companies I choose Advanced HVAC.  They were proffessional and informative offering different options.  Their pricing was very competitive offering the best all round for a well reviewed product.  As I had no working boiler, technicians began installation right away.  I am very happy with the work and final product.  Thank you to everyone at Advance.
  
 
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   Tienne Chenier 
 12 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Amazing, quick to respond and friendly, always willing to explain what is needed and why. Wouldn’t hesitate to recommend them to anyone.
  
 
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   Michel Leclair 
 13 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Always reliable with great service.  Special shout-out to Samuel Bond for his professionalism and advice.
  
 
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   Catherine Clysdale 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. The service was heat pump maintenance.  We were very happy with the service, and the technician was really great.
  
 
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   patricia kot 
 15 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service during my dealing with sales and instillation staff at Advanced HVAC.  The staff communicated well and provided honest and accurate details of the boiler system. The price was lower than other companies and the product is Canadian. I am very satisfied with the product and service.
  
 
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   Pat Thornton 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Excellent customer service. Friendly, helpful tech. Was treated like a customer should be treated - with respect and given all information regarding the running, repair, etc. of the A/C unit and thermostat, sensors. Prices comparable with other companies for the same services. Will call them again.
  
 
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   Daniel 0. 
 17 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I don’t usually give reviews but I had to for these guys. Sam was timely, listened to my problems and expertly handled it. On top of that he explained what went wrong and what to watch out for moving forward. Very satisfied with the service.
  
 
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   Jeanne Watson 
 18 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We requested our annual  maintenance and  inspection of the furnace and humidifier. Alex was on time. The service was thorough, quick and friendly.  We've been using the services of Advanced HVAC for several years now and will continue to do so.
  
 
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   dolores linares 
 18 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I'm very pleased with the services of advanced inc, fair prices, honest people. I recommend this company.
  
 
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   Leonard Hennessey 
 19 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Alexandre Begin the Advanced HVAC technician was punctual, courteous, knowledgeable, and efficient.  Alexandre is a great ambassador for your company.