About Us



Diamond Heating & AirTemp Alaska has been Anchorage, Alaska’s premier residential and commercial heating and cooling company for 25 years. We provide HVAC expertise in heating system repair, replacement, and maintenance. We are also indoor air quality specialists, providing solutions that ensure your utmost safety.

Diamond Heating Alaska employees


Founded in 1996 by Jerry Ralston, Diamond Heating Comfort Systems quickly grew from just three employees to one of the largest installers of residential and commercial heating and cooling systems in Alaska. 13 years ago, Diamond Heating Comfort Systems joined forces with AirTemp Alaska to become a highly diversified and reputable heating, ventilation, and air conditioning service and installation provider. We’ve earned accolades for our services and dedication to quality, but our true measure of success is customer satisfaction! Today, the combined services of Diamond Heating & AirTemp Alaska ensure that our customers have access to an industry-leading team of professionals capable of providing all services needed, from replacement and installation at new construction to residential HVAC maintenance.

Meet Our Team
Trane Comfort Specialist

Our Mission & Values

To provide our clients peace of mind by delivering maximum comfort and savings through results-driven solutions and service. We do this by hiring, training, engaging, and empowering the most talented team in the industry and by upholding our core values.

  • Do what’s right, even when it’s not easy.
  • Teamwork! Together we all succeed!
  • Strive for consistent personal and professional growth.
  • Embrace change for the sake of improvement.
  • Maintain a positive attitude.
  • Assume the best of intentions.
  • Given the chance to help someone, help if you are able.
  • Do what you say you’re going to do.
  • Be punctual, if not, let someone know as soon as you know you’ll be late.

community involvement

Diamond Heating & AirTemp Alaska is proud to call Anchorage home and is always looking for ways to spread love within our community. Our team supports a variety of local organizations dedicated to the Anchorage community and its people.

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Serving The Anchorage Community for 20+ years

Diamond Heating & AirTemp Alaska specializes in both residential and commercial HVAC services. Our team creates customized solutions to fit any need, from residential maintenance to optimal heating and ventilation systems designed to handle Alaska’s extreme temperatures. Our commercial specialists can handle replacing outdated rooftop units of virtually any capacity and on any building, with a minimum of downtime. We can also orchestrate major HVAC renovations and handle all the details, from engineering to electrical design, and even roofing if needed.

Join Our Team