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Cardinal Heating & Cooling strives for customer satisfaction! We have many happy customers who would love to share their stories with you. Take a look and read all of our testimonials below. If you are ready to start your service, please call us today at 703-755-0680.


      "I highly recommend hiring them for any HVAC need you may have in the future: I know I certainly will."

      Reading other reviews here I conclude Cardinal's owners have this attitude and implement it as integral and real part of their business. I highly recommend hiring them for any HVAC need you may have in the future: I know I certainly will.

      Helik S.
      "Cardinal is the best. SUPER friendly competent HONEST and very high level of customer service."

      They need 6 stars. I have worked with a dozen HVAC companies over the years. Cardinal is the best. SUPER friendly competent HONEST and very high level of customer service. They were on time every time. They helped fix a very complicated HVAC issue that was related to a zone damper system and a NEST. 2 other companies were unable to figure it out. Thankfully I found Cardinal and I now have a fully functional system.

      Matthew S.
      "The fix worked without any problem until we got our AC replaced 3 weeks later."

      Our AC broke last summer, and we had several technicians come in first. All of them told us it can not be repaired and the outside compressor must be replaced immediately if we want AC or the entire AC system should be replaced due to its age. We did not take those offers right away, because we wanted to do some research. We then looked up some HVAC brand specialists in order to find good companies to install new system. Cardinal Heating & Cooling is one of them with good rating. When Tod Workman, owner of Cardinal Heating & Cooling came in, my husband and I were bathing in our own sweat. Originally we just called Cardinal Heating & Cooling to give a quote about AC replacement, but Tod inspected our AC system, did some repairs and our AC started to work. I just can not believe it, and he then explained to us that the fix he did is temporary we still need to replace our AC system. But that fix can give us some weeks so that we can get quotes and compare. At that moment I was shocked (in a good way), I mean you can rarely find this kind of honesty, trustworthiness, and professionalism in this world. So with Tod's help, we did not rush into decisions and we had enough time to find a good deal. The fix worked without any problem until we got our AC replaced 3 weeks later. I would highly recommend Tod Workman and Cardinal Heating & Cooling to anyone. :-)

      Ying C.
      "It's good to have a service one can trust for a system as important as an HVAC unit."

      The service at Cardinal is excellent, professional, considerate, honest and prompt. Tod did a terrific job recommending the perfect replacement for my heat pump unit. My condo had specific physical drawbacks and no other HVAC service had been able to adequately accommodate those restrictions. Tod and his team worked efficiently and tirelessly to install my new system. They did a thorough and excellent job. I was comfortable having them in my home and confident in their work ethic. I would recommend Cardinal to any and all. It's good to have a service one can trust for a system as important as an HVAC unit.

      Kathy B.
      "Love the tech!! He explained everything to me and how it works, or in my case how it didn't work. "

      Love the tech!! He explained everything to me and how it works, or in my case how it didn't work. Very friendly, courteous and professional. Even checked this shoes for debris before he walked into my house. I'll make sure I give Cardinal Heating & Cooling for all my future business for A/C and heating problems.

      Elaine A.
      "I am 100% sure when I call Cardinal that I will get first rate customer care and service every time. I have complete trust in the Cardinal team."

      I have been using the team at Cardinal for over 10 years. I recently had some issues with my downstairs heating unit which was installed by the builder many years ago. I did not hesitate to call Cardinal to solve the problem. Even though they were able to quickly get the unit up and running again I decided to replace the entire system (Furnace & Humidifier & HVAC) as it is now over 20 years old. With their input and assessment I decided to go with a new Trane complete system. The team from Cardinal did a wonderful job with service and installation. From start to finish it ook only a few days and I could not be more pleased with the outcome. In todays world its so rare to get this kind of attention and professionalism. I am 100% sure when I call Cardinal that I will get first rate customer care and service every time. I have complete trust in the Cardinal team.

      Dave W.
      "The technician that came on site to provide an estimate answered all of the questions I had, including adjusting the proposal to include some additional work to add an additional return duct and much improved filter access."

      I just had my aging (20+ yo) HVAC system replaced, both the air handler and outside unit. Cardinal staff were very helpful and courteous. The technician that came on site to provide an estimate answered all of the questions I had, including adjusting the proposal to include some additional work to add an additional return duct and much improved filter access. The technicians arrived on the scheduled work day on time and got straight to work. On completion, he gave me an overview of the new system and made sure I was familiar with the thermostat configuration. When he gave me the paperwork, he made a point to helpfully remind me to ensure I registered the warranty -- I certainly wouldn't want to have missed out on that! Very pleased with a job well done!

      First L.
      "We've been using cardinal heating and cooling for over 15 years"

      We've been using cardinal heating and cooling for over 15 years and they're always fast, curtious and honest!! Great company.

      Janet D.
      "I need service for my home heat pump. These guys came right away and fixed me up quickly, also giving me some great advice for next steps"

      I need service for my home heat pump. These guys came right away and fixed me up quickly, also giving me some great advice for next steps

      Doug D.
      "It's good to have a service one can trust for a system as important as an HVAC unit."

      The service at Cardinal is excellent, professional, considerate, honest and prompt. Tod did a terrific job recommending the perfect replacement for my heat pump unit. My condo had specific physical drawbacks and no other HVAC service had been able to adequately accommodate those restrictions. Tod and his team worked efficiently and tirelessly to install my new system. They did a thorough and excellent job. I was comfortable having them in my home and confident in their work ethic. I would recommend Cardinal to any and all. It's good to have a service one can trust for a system as important as an HVAC unit.

      Kathy B.
      "He was very thorough and walked me through a tutorial of the thermostats to ensure I understood everything including the online registration."

      Kristen from the customer service team was extremely friendly and scheduled us quickly with an accurate over the phone quote. She patiently answered all of my questions as well. Greg arrived on time answered all of our questions and efficiently installed our new TRANE thermostats. He was very thorough and walked me through a tutorial of the thermostats to ensure I understood everything including the online registration. Overall a great experience and would definitely call them again!

      Terri M.
      "This company was courteous, professional, and did an absolutely wonderful job at our condo."

      This company was courteous, professional, and did an absolutely wonderful job at our condo. The owner actually came out and worked on the job himself. They replaced an A/C unit for us which is located on top of the condo complex (using a crane) which could not have been easy. They went above and beyond to ensure that the parts that did not need replacing were working properly, insulated well, and were easily accessible for future maintenance. I would highly recommend this company to anyone needing HVAC service. They did excellent work and were priced fairly.

      Frequent V.
      "I love it and it's saving my family and I a lot of money."

      Great install of my new Xl20i Hybrid system I love it and it's saving my family and I a lot of money. Great job guys I will recommend these guys to everyone. Very professional company.

      John R.
      "I've referred co-workers and other family members to Cardinal Heating & Cooling and they too have had wonderful experiences with Cardinal Heating and Cooling."

      Last summer, in the midst of all the heat and humidity, my A/C unit stopped working. Since Cardinal Heating & Cooling advertises that they're available 24/7 I called them. It was late in the evening so I didn't think I was going to be able to get someone to come out, but Tod Workman did. He thoroughly checked my unit (indoors and outside), diagnosed the problem (something was frozen and there was a leak too), showed me in writing what it would cost to make the repairs, how long it would take to finish the repairs, explained everything to me in terms that I could understand and answered all of my questions. Tod Workman even went so far as to be so honest and tell me that his repair may only be a Band-Aid because my unit was so old and rusted (and inefficient) that I should consider replacing it with a much more efficient unit. He explained to me that my unit was the original A/C unit when my condo was built and it was no longer made. And how my energy bills year-round could be cut in half or more with a new, more energy efficient model. I couldn't afford to replace my A/C so he said that wasn't a problem because he works with the power company who would help finance the replacement of my unit. Even though I chose not replace my unit, Tod Workman was still very professional, courtesy, polite, personable and made me feel very comfortable doing business with his family-owned business. I've referred co-workers and other family members to Cardinal Heating & Cooling and they too have had wonderful experiences with Cardinal Heating and Cooling. Matter of fact, my mother replaced her old A/C, furnace, hot water heater and thermostat with Cardinal Heating and Cooling. And my mother-in-law and sister-in-law have both used Cardinal Heating & Cooling and they too have had nothing but outstanding customer service from this very reliable and trustworthy family business. It feels good to support a local family business in the community, especially in these economic times, so I would encourage anyone to give Cardinal Heating & Cooling a call. You won't be disappointed.

      Cara M.