Colorado Indoor Air Quality Services

 
 
 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
I submitted a claim through First American Home warranty and they assigned McCormick to take a look at my fire alarm. They called as soon as they opened and set up an appointment with Jake Hernandez to come out today! He was quick to diagnose problem and replaced the malfunctioning alarm. Thank you Jake for your exceptional service! Update 4-2-26 Josiah and Brian came out to tuneup and clean the A/C. They were friendly and professional explaining what was happening during the service. Thank you!!!
  
 
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 Marcia Jackson 
 
 
 
 
  
 
 
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Always a pleasure to have McCormick Heating & Cooling over to keep my HVAC system up and Running. Justin and Josiah were professional, punctual, and explained some basic maintenance I should keep my eyes on. 10/10 would recommend Justin and McCormick Heating & Cooling to anyone needing such services.
  
 
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 Nick Minar 
 
 
 
 
  
 
 
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Angelo was a fantastic tech, his other coworkers were just as great, they took care of us 100% and left my furnace room better than they found it, very happy…Thank you McCormick Heating and Cooling!
  
 
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 derrek majors 
 
 
 
 
  
 
 
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Angelo was very good at his job, went above what was necessary to make sure everything was installed correctly and will remain safe for us for the future.  Cleaned up everything and looks better than before he arrived.  Thank you
  
 
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 Yvonne Majors 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
Wow! What a great experience. Justin was so cheery and fast. He got everything fixed and even changed out the filter. Thanks a bunch
  
 
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 Kara Tuzinovic 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
David and Jason replaced my H Vac system. They were so very knowledgeable and kind. They explained how to use and perform maintenance on my new system. I was extremely pleased how they showed care for my home. Thank you gentlemen I truly appreciate you both. I would recommend McCormick to anyone needing work with their H Vac system.
  
 
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 Cathy Miller 
 
 
 
 
  
 
 
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I’ve been using McCormick for 7 years now- they are very skilled at working on my non-traditional HVAC mini split system and have consistently saved me money over other companies. Josiah was able to diagnose and fix my heat issue on the spot! Thanks McCormick!
  
 
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 Kimberly Lammertin 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
Justin and the team at McCormick Heating & Cooling were excellent. They took the time to thoroughly diagnose issues with my boiler, test multiple valves, and walk through the system carefully to identify the most cost-effective solution rather than just recommending unnecessary replacements. Their approach was thoughtful, transparent, and very professional. Justin in particular was fantastic—knowledgeable, patient, and clearly experienced. He explained what he was doing at each step and made sure everything was working properly before finishing the job. In the end they replaced the necessary components and got the entire system running perfectly. It’s rare to find a company that is this honest, responsive, and detail-oriented. Highly recommend McCormick Heating & Cooling if you want quality work and technicians who genuinely care about doing the job right.
  
 
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 Alexander Whiteman 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
Quick service. In and out quick. Couldn’t expect anything better.
  
 
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 Gavin Torres 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
My entire experience was smooth, informative and successful! Angelo and David installed the new furnace. They were efficient and patient with all my questions. And they were knowledgable and friendly! Highly recommended for your HVAC needs! Thank you Mcormick!
  
 
 Posted on Google  
 
 
 
  
 
 
 Isa Segismundo 
 
 
 
 
  
 
 
 
 
    
 
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