Our family owned business was founded by Jack Gustafson back in 1971. Jack established a successful operation with much hard work, loyal employees and by being innovative in his approach to the HVAC business. We strive daily to emulate the standard he set. We’re proud that most of our customers are repeat customers, and because we exceeded their expectations they have referred family members and friends.

We Offer Peace of Mind

Gustafson Heating & Air Conditioning Inc. is a family-owned and operated company. For more than 43 years, we’ve been committed to quality service. We are the oldest, largest and most experienced RHEEM dealer in the metro Denver area! Our hope is to earn your trust, and show our expertise! Gustafson Heating & Air Conditioning Inc. works to develop employees and encourages them to use their skills and talents to the best of their ability. We maintain a business atmosphere of diversity and respect, aided by our continued attention to employee health and safety.

Our Code of Ethics

Our Company provides respect for all our Employees and Customers by building a belief system in:

  • Providing services at or above accepted industry standard
  • Providing a High-level customer service and nurturing long-term relationships with our customers
  • Ensuring that Honesty and Integrity are the hallmark of all our business practices.
  • Improving through continuing education and training.

What makes Us Different

  • We strive to reflect our values in the way we work. Believing service is not a department but a way of life.
  • We are privileged to serve our customers and committed to helping our employees move towards their full potential.
  • Doing great work alone is not enough. For us it is about doing an exceptional job in a way that honors everyone involved.
  • Gustafson Heating & Air has been serving customers for over 45 years. We turn all of our clients into friends and treat their homes like we would our own.

Innovative Solutions for Heating & Air Conditioning

We’ll recommend the most energy efficient, cost effective equipment for your home or business; with cutting-edge solutions that can make your home more comfortable and reduce your utility costs. We seek to address the fundamental problems of mechanical HVAC design, and not just sell you the newest “latest and greatest”.

Experience you can Trust

As a Rheem Team Top 10 Contractor in the United States, Gustafson Heating & Air Conditioning is part of a North American network of elite heating, ventilating and air conditioning contractors committed to high business standards and outstanding customer service. Being recognized for our hard work, our dedication shows we go above and beyond to support homeowners in our communities with the highest level of service and expertise.

Being a Rheem Team Top Contractor gives us advantages such as, Rheem DesignStar®, an interactive online program that assists us in the specification of customized HVAC systems, and Sizing programs all designed to keep us competitive in our markets. Other benefits include industry-leading training and educational resources.

Gustafson Heating & Air Our Customer Satisfaction Guarantee

How we provide Customer Satisfaction

  • We start by actively listening to and responding to the needs of our customers.
  • We do everything possible to make it easy for our customers to do business with us.
  • We strive to make every customer interaction the best it can be
  • Exceeding Expectations is the ultimate goal.


We want our customers to be completely satisfied with the work Gustafson Heating & Air Conditioning has done. That’s why if you’re dissatisfied we will gladly come back and fix any error, at no cost, or cheerfully give a refund. We’re not comfortable until you’re comfortable, and that’s why we’re committed to providing you with quality service every time!

Gustafson Heating Prices

Lowest Overall Cost

Our process ensures you’ll get a great return on your investment. Our services are very competitively priced. Our price reflects only what your unique heating and cooling situation needs and nothing more. Our selection of the best materials and equipment combined with the best HVAC service methods leaves our customers with the greatest return on investment in the industry.

Lowest Price

If price is your greatest concern, then we have systems available to accommodate your needs. We purchase large quantities of products allowing us to be as competitive as any other company.
There are only 3 ways to lower price. (1) do less work (2) spend less time (3) use fewer and/or lower grade materials

Look for the NATE Patch

Our NATE CERTIFIED SERVICE TECHNICIANS Can handle all your HVAC needs. Their ongoing training keeps us on the cutting edge, combined with their daily experience in the field makes them more valuable every day.

Ask yourself these questions when choosing your contractor: Will they…

  • Get the job done right the first time, on time.
  • Be available after the sale.
  • Make sure everything is complete just the way you were told, and to your satisfaction.