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50+ Years
experience
Emergency
services
Trusted HVAC Solutions in Denver
Major Heating & Air Conditioning has been a trusted name in Denver's HVAC industry since 1970. Founded on principles of integrity and customer care, we specialize in residential and commercial heating, cooling, and geothermal systems. Our team of EPA, LEED, and NATE-certified technicians brings decades of combined experience to every project, ensuring solutions tailored to client needs. With a BBB A+ rating since 1983, we prioritize transparent communication, ethical practices, and energy-efficient innovations.

Our proprietary Major Heating & Air Conditioning Service System guarantees personalized service, from system design to emergency repairs, while our 24/7 availability underscores our commitment to customer satisfaction. As industry leaders, we combine cutting-edge technology with time-tested values to deliver comfort and reliability across the Rocky Mountain region.
Services
Furnace Installation Heat Pump Repair Geothermal Systems Boiler Replacement AC Maintenance
Details
  • Year established: 1970
Highlights and features
  • 40+ years of local HVAC expertise in Denver
  • EPA, LEED, and NATE-certified technicians
  • 24/7 emergency service with rapid response
  • Customized solutions via the Major Heating & Air Conditioning Service System
  • BBB A+ rated since 1983 for ethical practices
Associations and certifications
  • BBB
  • EPA
  • LEED
  • NATE
What people say
Prompt service Knowledgeable technicians Transparent pricing Reliable repairs Professional demeanor
Services
Furnace Installation
Our furnace installation service ensures optimal home comfort with high-efficiency systems tailored to Denver's climate. We offer Carrier, Trane, and Lennox products, prioritizing energy savings and durability. Technicians assess home size, insulation, and budget to recommend ideal solutions, including rebates and financing options for cost-effective upgrades.
Geothermal Systems
Geothermal heating and cooling leverages stable underground temperatures for year-round efficiency. We design and install residential and commercial systems, reducing energy bills by up to 70%. Our experts handle loop field design, EnviroPlate integration, and forensic evaluations to ensure seamless performance and long-term sustainability.
24/7 Emergency Repair
Critical HVAC failures demand immediate attention. Our 24/7 emergency service guarantees rapid response for furnace, boiler, or AC breakdowns. Certified technicians arrive equipped with diagnostic tools and replacement parts to restore comfort swiftly, minimizing downtime for homes and businesses.
Commercial HVAC
We specialize in complex commercial HVAC solutions, including building automation, refrigeration, and forensic evaluations. Our team designs systems for offices, retail spaces, and industrial facilities, focusing on energy efficiency, compliance, and scalability. Preventative maintenance plans reduce operational costs while ensuring code adherence.
Air Quality Solutions
Improving indoor air quality involves advanced filtration, humidifiers, and ventilation systems. We address allergens, humidity imbalances, and pollutants through tailored solutions like HEPA filters and UV purification. These upgrades enhance health, comfort, and HVAC efficiency, particularly in Denver's arid climate.
Questions
What HVAC services does Major Heating & Air Conditioning offer?
We provide furnace/AC installation, geothermal systems, emergency repairs, commercial HVAC solutions, and indoor air quality improvements.
Do you offer 24/7 emergency HVAC service?
Yes, our technicians are available 24/7 for urgent heating and cooling repairs across Denver and the Rocky Mountain region.
Are financing options available?
Yes, we offer flexible financing plans and help customers access manufacturer rebates or tax credits for HVAC upgrades.
What areas do you serve?
We serve Denver, Boulder, Highlands Ranch, Parker, and mountain communities like Aspen, Steamboat Springs, and Vail.
What certifications do your technicians hold?
Our team holds EPA, LEED, and NATE certifications, ensuring expertise in the latest HVAC technologies and best practices.