Whether you need furnace installation services or emergency heating repairs, we’ve got you covered.

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We provide the best HVAC services in Denver. Contact our professional team of experts to get your new AC installed quickly. 

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Indoor Air Quality

If you’re having a hard time with indoor allergens, a whole-house filtration system can help alleviate symptoms.

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24/7 Services & Repair

Looking for HVAC services in Castle Rock? We offer 24-hour service and the best maintenance plans, including seasonal cleanings and other services.

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Your Comfort Is A Part Of Our DNA

If you’re living in areas like Denver, Parker, Aurora, etc., it is important that you have a functional HVAC system. With the weather taking unexpected turns, your heating and cooling systems need to be used accordingly. D&A Heating and Air offers professional services at the best rates saving you time. Find the best professional services for your home at your doorstep.


24 Hour Emergency Service! Call Us at (303) 834-3393

Don't Wait, Call NOW!

Putting 22+ Years Of Experience To Work For You

Why hire us for HVAC companies in Denver, Castle Rock, Parker, Lakewood & Aurora? Because you’ll be working with an HVAC contractor who has more than two decades of industry experience. You can count on us to explain every detail so you know exactly what you’re getting.

Fixing your HVAC systems on your own when they break down could be a task that escalates your problems. So instead of opting for DIY repairs, you can hire an experienced HVAC contractor from D&A Heating and Air, the best HVAC company in Denver, Castle Rock, Parker, Lakewood & Aurora. Our team knows how to work with a variety of HVAC equipment from trusted brands, like Trane, REME, Halo, and RGF. Plus, you can be sure our team will get the issue resolved in a timely manner.

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    • Great service techs who got the job done in a timely and professional manor. Highly recommend if you need a new furnace fast and the job done right. Noah and... read more

      thumb Cody White
      December 17, 2022

      Austin & Noah took care of me when I had problems with my AC & the job didn’t get done the first time around. I called them & they quickly... read more

      thumb dimo 8651
      October 8, 2022

      I've used D &A for my HVAC system maintenance for years. This year it went out just like they wanted me it was coming. They installed a... read more

      thumb Judy J
      July 8, 2022

      Good genuine people who do honest work. I had them install a new AC and Furnace on an old house that had no AC. Their price was 8k cheaper than... read more

      thumb Jordan Shabot
      May 8, 2022

      Excellent experience with Daniel, Austin and Peter. Fair pricing, and fast install. I would highly recommend to anyone looking to get a new AC.

      thumb Jackson Bueno
      April 8, 2022

      Austin & Peter replaced my furnace recently. They are top-notch at what they are doing. D & A Heating & Air offers great service and awesome price!

      thumb Wendy
      March 8, 2022
    • Austin helped us 2x during 2021 and every time was a great experience, I recommended them to a neighbor and she shares the same opinion. He saved me money... read more

      thumb Walther Dalence
      February 8, 2022

      Austin has been to my house before I can say enough about him. He’s just excellent, in time, fair price, I’d recommend him to anyone!

      thumb Deirdre Neiberger
      December 8, 2021

      Furnace was leaking. I called Daniel at 7:15 on a Saturday morning during a heat wave and the system was fixed by 11 am. Very responsive and great service.

      thumb Travis Barton
      December 8, 2021

      We had our HVAC die in the middle of a heat wave. Other companies couldn't get to us for a week. One actually cancelled their appointment with us.... read more

      thumb Darren Copeland
      December 8, 2021

      Let me tell you what, these guys are first class. It’s a small family owned business and I wouldn’t want to do business any other way. Dan and his crew... read more

      thumb Brian Breed
      December 8, 2021

      Great experience! Techs were very professional made a clean install and everything works to perfection. Very pleased.

      thumb Matt White
      December 8, 2020

    Servicing All Brands!