PhD Heating & Cooling

After several repairs on my old furnace, I decided it was time to replace it. I got a few quotes, but PhD Heating & Cooling stood out right away. Dmytro provided a detailed estimate, explained the differences between models, and helped me choose the right Carrier system for my home. The installation was spotless — they arrived on time, protected my floors, and cleaned up everything after finishing. The new system runs quietly and keeps my home perfectly warm. Professional and detailed installation. You can tell they truly care about quality and customer satisfaction. I couldn’t be happier with the entire experience.

Great service! I called PhD Heating & Cooling when my furnace suddenly stopped working in the middle of the night. Dmytro showed up the same day, quickly diagnosed the issue, and had it running again the same day. What really impressed me was how clearly he explained what went wrong and what to look out for in the future. He didn’t try to upsell me on unnecessary parts — just honest, professional work. My home was warm again that evening, and the price was very fair for the level of service I received. I highly recommend them to anyone who needs reliable, knowledgeable HVAC service.

My experience with PhD Heating & Cooling was excellent. The heat exchanger in our furnace broke, so we had to replace it. They provided me with a terrific deal and next-day installation. Professional, honest, detailed. They also found and resolved another problem. Without a doubt, I would suggest this business.

The technician did not tell me how much it costs to add freon, he just told me mine was low and that I needed some and asked me did I want it, I said yes. Afterwards he gives me a bill for $500.00 for 2.5lbs of freon and his service fee. I was shocked, he charged 375.00 to add 2.5lbs of freon. I would not have agreed to it if I knew it would be that much. He didn't check the system for leaks to determine why the freon was low, and when I asked him about he said he didn't check it because the pressure test would be more money. What? I will never use him again and I do not recommend his company for service. He was even over 30 min late for the appt when I clearly told him I had to go to work. Bad service

Dmytro is amazing! He diagnosed and replaced my AC unit in October of 2024. He is always timely, very knowledgeable, and kind. Highly recommend

I recently had the pleasure of working with PhD H&C for my heating and cooling needs, and I couldn’t be more satisfied with the service they provided. From the initial consultation to the completion of the job, the entire experience was seamless and professional. They arrived on time and was extremely knowledgeable. They took the time to thoroughly inspect my system and explained all the options available to me. The technician was not only skilled but also very courteous, ensuring that everything was done efficiently and with minimal disruption to my daily routine. The repair was done to the highest standard, and I immediately noticed an improvement in the comfort of my home. They also went above and beyond by providing maintenance tips and answering all my questions. What stood out the most was their attention to detail and commitment to customer satisfaction. They cleaned up after the job was done and followed up to ensure that everything was working perfectly. I highly recommend PhD H&C to anyone in need of heating and cooling services. Their expertise, professionalism, and excellent customer service make them a top choice.

Hands down one of the best HVAC services in Chicago! I sell real estate and refer all my clients to them as well. Responsive, and brutally honest, and will not try to upsell you. I even asked if my furnace needed to be replaced and he said "no, it was just poorly installed. We can work with it." I knew them Dymetrov was my guy. He is very fair, and does great work, super knowledgeable. I even had his company come back to clean my vents and did an excellent job. I had my furnace go out when it was 20 degrees outside and I was going out of town. He came back at 9pm to finish the job to allay my concerns about my pipes freezing! Top notch. Don’t call anyone else—you’re wasting your time, and will pay too much.