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Jason Stenseth – Owner of ROX Heating & Air

Who is ROX Heating & Air?

Jason StensethHello, I’m Jason Stenseth and Owner of ROX Heating & Air, I  have been in the HVAC business my whole life, working for my Father’s HVAC company. Starting when I was 14 years old, every summer and winter break I would be in the field with my father learning the trade. While other kids were home playing video games, I was installing new HVAC systems for customers or learning from my father how to troubleshoot and repair failed systems. As a result, I have become an expert in HVAC design, sizing, installation and service. My main competencies include High Efficiency System Design/Installation and High GPM Tankless Water Heater Sizing and Installation. I am also competent in all other HVAC applications, including residential and commercial buildings. I have experience working on all types of HVAC systems, from small 1 ton air conditioners in one bedroom condos to 15 ton rooftops on large commercial buildings.

I hold a Bachelor’s Degree from Metropolitan State University of Denver and have completed extensive technical training through Xcel Energy and Johnstone University. I am NATE Certified in both Gas Heating Installation/Service and Air Conditioning Installation and Service. I also hold EPA Type I and II certifications. I pride myself on my technical expertise in the field, which proves to be very beneficial to my customers. In addition to over 15 years of experience and technical education, I am the author of 6 best selling HVAC troubleshooting books. My books have been used by people all over the country and internationally to learn about and troubleshoot their home heating systems. I currently have one HVAC Study Manual for technicians on the market and am in the process of writing a series of more books.

I am a proud Colorado native who grew in Littleton, Colorado. It is in Littleton where I met my wife, Lindsey, in middle school and began dating Senior year of high school. The rest is history and we are fortunate to have a daughter and son. We live a very family-oriented life and when not working, we are busy with our children’s activities. Unlike many other companies, I am truly a local and dedicated professional that wants to earn your business through trust, satisfaction, and friendly service.

Thank you for stopping by and please contact us for all of your HVAC needs! Click here for an estimate

Best HVAC Company Denver

Our Promise to you

Once we repair your system, we guarantee our work for 1 full year. If the repair does not solve the problem, we will refund your money for the prior repair. If you wish, we will re-diagnose the problem and repair accordingly for the cost of the new repair. Also, if at any time you are dissatisfied with our service, we will refund you the full amount of our service call and labor charges. We are truly 100% committed to providing you with the best HVAC service and want you to be excited to tell your friends about the quality of our company.


  • Arvada
  • Aurora
  • Castle Rock
  • Centennial
  • Cherry Hills Village
  • Commerce City
  • Denver
  • Englewood
  • Golden
  • Greenwood Village
  • Highlands Ranch
  • Ken Caryl
  • Lakewood
  • Littleton
  • Lone Tree
  • Morrison
  • Northglenn
  • Parker
  • Thornton
  • Westminster
  • Wheatridge

Brands We Service

  • Amana®
  • American Standard®
  • Aprilaire®
  • Armstrong Air®
  • Bryant®
  • Carrier®
  • Coleman®
  • Ducane®
  • Frigidaire®
  • Goodman®
  • Heil®
  • Honeywell®
  • Lennox®
  • Payne®
  • Rheem®
  • Ruud®
  • Trane®
  • York®

Schedule A Free Estimate

Are you in the market for a New HVAC System, Furnace Installation, Air Conditioner Installation, or Water heater Installation?  We provide free estimates on new installations and would be happy to help you.  Call Or Text us at 720-468-0689



The ROX 3 FOR FREE Deal is the best HVAC Deal in Colorado. No other company can match the ROX 3 FOR FREE DEAL. Our buying power and relationship with our supply house has allowed us to offer the best deal in town. What is the ROX 3 FOR FREE Deal? It is very simple,...

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Free Furnace with AC Colorado

Free Furnace with AC Colorado

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IAQ Solutions for Your Home

IAQ Solutions for Your Home

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Air Conditioner Deals Littleton, Colorado 2020

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Air Conditioner Deals Highlands Ranch 2020

Air Conditioner Deals Highlands Ranch 2020 ROX Heating & Air has this seasons best A/C Installation Pricing. No other reputable company in the Denver Metro Area can match our Air Conditioner Deals this...

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Highlands Ranch Air Conditioning Installation Specials 2020

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Contact Information

Hours of Operation

Monday-Friday: 7:00AM – 11:00PM
Saturday: 9:00AM – 4:00PM
Sunday: 10:00AM – 2:00PM