Who We Are

Bringing You the Best in Denver HVAC with a Commitment to Family Values

Mercury Heat and Air Conditioning is proud to serve as one of the most trusted and highly rated HVAC companies in Denver. That’s because we understand the meaning of family and keeping yours safe. As a fourth-generation family owned business run by Colorado native Patrick Guiry of Guiry’s Paints, the importance of protecting family is core to our business and guides everything we do. Our friendly team of HVAC experts goes above and beyond to ensure you receive the solutions you need at the prices that fit your budget, because that’s what we’d do for our own family.

Expanding the Guiry’s Paint Legacy to Residential Heating & Cooling

The Guiry name is a recognized brand in the Denver community, representing Quality, Integrity and Service as a professional retail brand in Colorado for over 100 years. Mercury Heat and Air Conditioning was founded in 2019 by Patrick Guiry to extend the Guiry’s Paints legacy of high quality service and unmatched value to the Denver metro HVAC landscape. We treat our customers as we would want any member of our family to be treated—with honest work, fair prices, and reliable service when you need it. 

Founded with a Commitment to Family & Excellent Service

At Mercury Heat And Air Conditioning we provide our customers with the best, top-quality service year-round, 365 days a year. Our customers enjoy a highly-personalized, efficient and cost-effective approach.

We treat our customers like family—and we’d never leave you out in the cold! The Mercury Heat And Air Conditioning service team is on call 24/7 and is available for emergency repairs. Our professional HVAC technicians are trained to service and repair all brands and makes of heating, furnace and air conditioning systems.

Bringing You the Best in Denver HVAC

We believe in continuing education so that our expert technicians are always serving you with the latest technology and approaches. Our technicians attend regular training that helps them remain current with the latest HVAC trends and best practices in the industry. Our service team provides service and repairs on furnaces, air conditioners, humidifiers, water heaters, air handlers, pure air systems and many other types of HVAC equipment—and we also handle emergency repairs 24/7. When you call Mercury Heat And Air Conditioning, our service coordinators are well-versed and will help you sort through your heating, furnace & air conditioning issues. Whether you need new equipment, repair or service, have questions about our planned maintenance programs, billing issues or even looking for a part, we are willing to help!

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Why Our Customers Love Us 

5 Star Reviews

“Ray and Zach were very thorough in removing my old furnace, vacuuming the entire closet before putting in the new furnace. They were very careful not to track in any snow or dirt, they put down drop cloths to walk on. They made sure I understood the thermostat before they left. They completed the job in speedy time. I thank Ray and Zach again for a job well done.”

Patricia J. , Littleton, CO

5 Star Reviews

“Extremely responsive (even on a Sunday), reasonably priced, and excellent work. Within minutes of having issues with my garbage disposal this past Sunday, they were at my location with a replacement. Highly recommend.”

David R. , Denver, CO

5 Star Reviews

“Neal is a friendly, efficient and professional technician. He installed my garbage disposer in under an hour and then explained how it differed from my previous one and how to care for it. Really nice guy! Overall, the response was fast after I reported needed a new one in Home Advisor and customer service was excellent.”

Jennifer M. , Denver, CO

5 Star Reviews

“Quick response call for appointment setup; excellent customer service. Install was done the next day with professionalism, courteousness and the new unit works fine. Keep up the good work.”

Derrick C. , Denver, CO

5 Star Reviews

“I am so glad we went with Mercury for our new AC system. Ray showed up quickly with a mask on for a quote and answered all my questions. We got a quote within a day, which took some companies weeks to get to us. The quote was extremely reasonable.”

Jena D. , Denver, CO

5 Star Reviews

“Very pleased with the technician Neal Porter friendly and courteous. The job was completed quickly and an excellent job. I will definitely recommend Mercury Heating Air to all my friends.”

Ed S. , Aurora, CO

5 Star Reviews

“The Experience was FIVE STAR! When we needed someone to be there, Mercury Heating and AC made sure the AC was working when my son was released from the hospital. This kind of company and their response is very much appreciated. Thank you Ray and Mercury. Great job!”

Fred K. , Parker, CO

5 Star Reviews

“Ray was very knowledgeable and gave a great competitive price. They only took a few hours to install my furnace. They were on time and answered all my questions. I had about 3 other quotes that were not even close. I would recommend to others for their great service!”

Johnnie G. , Denver, CO

5 Star Reviews

“Ray was an amazing professorial and showed me everything so I could make the right decision for my home. I highly recommend Ray for any homeowner. Also his amazing responsiveness was outstanding. Came on Sunday and replaced the furnace on Monday! Thanks Ray!”

Dennis N., Denver, CO

5 Star Reviews

“Ray made it out on the same day I contacted them (which incidentally was a Saturday). He was very knowledgeable and professional. He was able to replace my deceased furnace first this Monday morning (which was great because another cold front was on its way). He did a great job installing the new equipment (very neat and detailed). I will recommend them to others and I intend to use them again (I have a pending AC project that I will likely do in early spring).

Andrew B. , Littleton, CO
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Mercury Heat And Air Conditioning

Contact Info

  • Address: 5082 E Hampden ave Denver CO 80222
  • Phone: 720-805-1717
  • Email: sales@mercuryheatandair.com

Working Hours

  • Monday – Friday: 8:00 AM – 5:00 PM
  • Saturday – Sunday: By Apt
Mercury Heat and Air is HomeAdvisor Screened & Approved


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