About Us

Cardinal Heating & Cooling was founded in 1991, by Nelson Workman. At the time Nelson had 35 years of experience under his belt, and high expectations for his new company. Starting a family owned business with his two sons, both in their twenties, was a scary thought for a man who was putting everything he owned into his business. He knew he had two good workers in his sons, and he knew the business could not go wrong because he had taught them everything he knew about the HVAC trade. Most of all, he taught them to be reliable, honest, professional, respectable and how to listen to every customer.

Now that our father has passed, we will personally make sure that his very high standards for the company that we built together will stay the same. We built Cardinal Heating & Cooling with pride, excellence and one customer at a time. We look forward to serving you and all of your heating and cooling needs.

We have factory-trained, friendly and well-groomed technicians at Cardinal Heating & Cooling, and we strive for perfection when working with our customers. From service to installation, our goal is your comfort, and we will work until you are satisfied.

  • Master HVAC License
  • Class A VA Contractors License
  • EPA Certified
  • Professional Factory-Trained, Experienced, Friendly and Well-Groomed Technicians


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Cardinal Heating & Cooling


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Contact Information

Cardinal Heating & Cooling
Sterling, VA 20166

Tel: 703-430-4040
Fax: 703-481-2570


Monday - Friday: 7:30 a.m. - 4:00 p.m.
Saturday: 8:00 a.m. - 3:00 p.m.

Established in 1990 | Family Owned & Operated
Serving Loudoun County & Surrounding Areas

Residential & Commercial
Licensed & Insured | Master HVAC License

Member of the Better Business Bureau
Class A VA Contractors License | EPA Certified

we accept visa, mastercard, american express, discover, cash, checks, and debit