For nearly 3 decades, our family has been dedicated to keeping your family comfortable

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Heating & Cooling in Sterling, VA

Bringing Comfort to Homes & Businesses in Fairfax & Loudoun Counties

Broken air conditioner or heater? Contact Cardinal Heating & Cooling right away! Our family owned and operated Sterling heating and air conditioning repair company responds promptly to all service calls.

We know the inconvenience of having an ineffective heating or air conditioning system when you need it most. That’s why we are here to provide you with the timely and efficient services you deserve.

Whether your comfort equipment is down to its last legs or just needs a little tune-up, our professional Sterling heating and air conditioning technicians can handle it. We are NATE-certified and licensed in the state of Virginia.

We also offer flat-rate pricing, free estimates on system installations, and financing options with approved credit through Wells Fargo. As your one-stop shop for all things heating and air conditioning in Sterling, we always put your comfort and satisfaction as our top priorities.

Trane Certified Dealer


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Founded on Honesty, Reliability & Professionalism

Cardinal Heating & Cooling was established in 1991 by HVAC industry veteran, Nelson Workman. After 35 years of working for different HVAC companies, Nelson bravely pursued a lifelong passion of opening his own company together with his sons.

Right from the start, Nelson has set very high standards for the company, emphasizing the core values of honesty, reliability, professionalism, and respectability. In a short amount of time, all of the family’s hard work and good intentions eventually cemented Cardinal Heating & Cooling’s reputation as the most trusted HVAC service company in Herndon, Ashburn, and all of Fairfax and Loudoun Counties.

After Nelson’s passing, his son, Tod Workman, took over and is now personally overseeing that his father’s legacy continues with the high-quality services and products the company offers.

Cardinal Heating & Cooling remains committed to creating comfort for our customers in, one at a time. Schedule an appointment with our HVAC service in Sterling, VA and experience the difference.

Keeping You Comfortable All Year Round Learn More

Why Choose Cardinal Heating & Cooling

  • Upfront Pricing
    Feel at ease with no surprises—we charge by the job, not by the hour.
  • NATE Certified Technicians
    Our technicians are trained and tested to the highest standards.
  • We Repair What's Damaged
    We only suggest a replacement when your system is beyond repair.
  • Lifetime Relationship
    We focus on creating long-term relationships with our customers.
“It's good to have a service one can trust for a system as important as an HVAC unit.” - Kathy B.

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