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50+ Years
experience
Emergency
services
Your Trusted Partner for HVAC Solutions in Denver
Since 1970, Major Heating and Air Conditioning Heating and Air Conditioning has been a family-run leader in Denver's HVAC industry, delivering trusted comfort solutions for residential and commercial clients. Our team of EPA, LEED, and NATE-certified technicians combines over 40 years of experience with cutting-edge technology to provide expert installation, repair, and maintenance of heating, cooling, and geothermal systems. We prioritize customer satisfaction through personalized service, including customized maintenance plans and 24/7 emergency support.

As a BBB-accredited business with an A+ rating since 1983, we uphold rigorous standards of quality, transparency, and ethical practices. Our commitment to innovation ensures access to energy-efficient systems that reduce costs and environmental impact, supported by flexible financing options and industry-leading warranties. By focusing on long-term relationships and tailored solutions, we ensure every client receives honest recommendations and services that align with their unique needs and budget.
Services
Furnace Installation Furnace Repair Heat Pump Installation Boiler Repair Customized Maintenance Plans Geothermal Systems Air Conditioning Repair Air Conditioning Installation Commercial HVAC Services Indoor Air Quality
Details
  • Year established: 1970
Highlights and features
  • We offer 40+ years of industry experience with certified technicians.
  • Our team provides 24/7 personalized emergency HVAC services.
  • We implement a patented Major Heating and Air Conditioning Heating and Air Conditioning Service System for customized solutions.
  • Our company holds an A+ BBB rating since 1983.
  • We guarantee transparent pricing with no hidden fees.
Associations and certifications
  • BBB
  • EPA
  • LEED
  • NATE
What people say
Prompt 24/7 service Knowledgeable technicians Transparent pricing Reliable repairs Long-term trust
Services
Furnace Repair
Our NATE-certified technicians provide prompt furnace repairs for all systems, ensuring efficient operation and safety. With 40+ years of experience, we diagnose and fix issues during the first visit, minimizing downtime. Emergency services are available 24/7 to address breakdowns in extreme weather, backed by a satisfaction guarantee.
Air Conditioning Installation
We specialize in installing high-efficiency air conditioning systems tailored to home size and climate needs. Our experts evaluate insulation, airflow, and energy goals to recommend optimal solutions, including rebates for cost savings. Seamless installations ensure minimal disruption and long-term comfort.
Boiler Replacement
Upgrading outdated boilers to high-efficiency models reduces energy costs and improves reliability. Our technicians assess system age and performance to recommend replacements, leveraging expertise dating to our 1970 founding. Financing options make upgrades accessible for homeowners.
Geothermal Systems
We design and install geothermal heating and cooling systems that harness earth's stable temperatures for 80% energy savings. With 20+ years of experience, our solutions include residential and commercial applications, offering long-term sustainability and rebates for reduced upfront costs.
Commercial HVAC
Our commercial services cover complex systems in offices, retail, and industrial spaces. From design/build solutions to forensic evaluations, we ensure energy efficiency and compliance. 24/7 emergency support and maintenance plans minimize downtime for businesses.
Questions
What HVAC services does Major Heating and Air Conditioning Heating and Air Conditioning Heating and Air Conditioning offer?
We provide furnace repair/installation, air conditioning services, geothermal systems, boiler replacement, commercial HVAC solutions, and 24/7 emergency support.
Are your technicians certified?
Yes, our team includes EPA, LEED, and NATE-certified professionals with 40+ years of industry experience.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency repair services for heating and cooling systems in Denver.
What financing options are available?
We offer flexible financing plans and help customers access rebates for HVAC upgrades.
How often should HVAC systems be maintained?
We recommend annual maintenance for furnaces and air conditioners to ensure efficiency and longevity.
What areas do you serve?
We serve Denver and surrounding areas including Boulder, Aspen, Steamboat Springs, and Vail.