The Best Heating and Air Conditioning Repair in Denver

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. 

About Us

Cost-Effective, Quick & Reliable Denver HVAC Services

When you need expert service and repair on your existing furnace or air conditioner or installation of a new, energy-efficient HVAC system, trust Mercury Heat and Air. We proudly serve the entire Denver and Centennial area with top quality residential and light commercial AC and Heating repairs. Our services range from the installation and maintenance of many HVAC systems including furnaces, air conditioners, water heaters, humidifiers and more. We provide superior heating and air conditioning systems fit for any home and are a factory authorized dealer for the Trane product line. 

Our professional team of HVAC service technicians is available 24/7, 365 days a year to provide emergency service and on-call HVAC repairs. We are not only focused on providing high quality products and excellent service—we are committed to making the entire process as easy and convenient for our customers as possible. From quick service and fair prices to the friendliest professional technicians across the Denver area, you will be happy you called Mercury Heat and Air.

Large and small, complicated or simple, if it’s HVAC, then Mercury Heat And Air Conditioning can handle it. With the best tools, knowledge, and decades of experience, you can rest assured knowing that our professional team is delivering you industry-leading service.

Furnace installations are not simple, but they don’t have to be difficult. Our local teams are heating system experts, so you can be certain that you’ll make the best decisions for the heating needs of your home. We’ll come to your home and handle the furnace installation from start to finish, including the installation of any ductwork your system needs. 

Conditioning, we know how important it is to have a heating system that you can rely on. Heaters should work efficiently, reliably, and as powerfully as possible to keep your family comfortable (and your bills low!). Our friendly team of professional HVAC technicians is ready to help you achieve both!

Keep your home cool in the summers and warm thru the cold Colorado winters with an energy-efficient, eco-friendly heat pump HVAC system. Our HVAC team is experienced in maintenance, repair, and installation of a wide array of heat pump systems.

At the end of a long day, nothing feels better than a hot shower or warm, soothing water to wash your hands. Our energy-efficient, reliable water heaters help reduce your home’s overall energy consumption without sacrificing your hot shower. Let us help you lengthen the life of your current water heater or find the best replacement option for your home and budget!

Sometimes an old AC unit needs to be replaced for cost, efficiency, or other reasons. However, choosing the right air conditioner for you is never a one-size-fits-all situation. Our AC pros come to your home to determine precisely which air conditioner will work best for your budget, preferences, and other factors important for you and your home’s comfort.

Your air conditioner has an important job: keeping you and your family comfortable indoors. When an air conditioner breaks down, it can be as expensive as it is frustrating. If your air conditioning is not working correctly, we’ll come to your home and diagnose the problem quickly. If a repair is the best option for you, we’ll make sure it is done quickly and correctly. Let our expert HVAC technicians maintain and repair your AC unit to operate as efficiently as possible and extend its lifetime.

An important part of home comfort control is regulating humidity. Dry air (which is especially prevalent in dry Colorado winters) can lead to dry skin, itchy nasal passages, and damaged flooring or walls. If you want to add moisture to the air you breathe, contact the humidifier experts at Mercury Heat & Air Conditioning. Our technicians have the skills, knowledge, and experience to handle any HVAC issue and indoor air quality problem.


  • Arvada
  • Aurora
  • Denver
  • Dupont
  • Englewood
  • Golden
  • Idledale
  • Indian Hills
  • Kittredge
  • Littleton
  • Lone Tree
  • Louviers

  • Morrison
  • Westminster
  • Wheat Ridge

Honest Work, Fair Price—100% Satisfaction Guaranteed

The certified technicians at Mercury Heat and Air Conditioning in Denver will treat your heating & cooling problem like it’s our own. Whether you need specialized repairs, your HVAC system inspected or your unit replaced, there is nothing our team can’t handle. Our friendly and professional HVAC experts offer straightforward service explanations, upfront pricing and your satisfaction is 100% guaranteed. We are a 4th generation Colorado native family-owned business, and we understand the importance of protecting the comfort and safety of your family. We’ll show up on time, and we’ll get the job done right the first time – guaranteed. We provide trusted emergency HVAC services across Denver and the surrounding areas.

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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