Harry was the absolute best! Great disposition, wonderful personality and sense of humor, extremely professional and passionate at what he does. I called Harry in the middle of the night, and he came over to inspect my unit right away. He gave me his honest opinion on my situation and refused to charge me because he didn't believe in taking my money just for the heck of it. It's hard to find people with such great integrity and you can tell Harry really takes pride in his work. 10/10 would recommend him to any and everyone!

Harry and his team miraculously brought our failing cooling tower to working order and gave it a new lease on life. We're so grateful for their expertise, attentiveness, and excellent handiwork. Highly recommended for any condo/apartment/HOA building's cooling tower/HVAC needs. Thank you!!

I have a cigar lounge in Torrance. After getting a few quotes I choseCalifornia Air conditioning Systems, and I’m so glad I did. They provided a fair quote and provided pictures of some of their work. Once agreed on a price, they began work on the next business was day. They sent pictures of their progress and communicated throughout the entire process. What was most impressive….. they left my attic cleaner than it was before they started working. They cleaned up at the conclusion of each days work.

I met Harry Irving when he came out to give me an estimate for a new heating system. He very professional. I was looking forward to doing business his company. Having just put a new roof on my house, I was work with a tight budget and had to make other choices. However; Harry gave me some great expert advice. He recommended that I put solar heating panels in my attic to help cooled and make sure my attic did not cause me future problems from moisture buildup. I Greatly appreciated him for his professional advise and service. I would recommend him in the future I give him five stars for his professionalism and his service.

California Air Conditioning Systems are extremely professionals, this is our experience working with Harry and team, we are pleased to find a professional technician in AC, in the past we have been working with someone who only repair and do not maintain the unit in good shape, they just showed up to fix and leave right away, but this is my experience in the past. Now we are using California Air Conditioning System for maintenance and repair our AC units, Harry has the knowledge and he provided the best quality with pictures and videos , before and after complete his work. Harry showed up on time, he clean the AC unit, duct, we can see and feel the difference before and after, now we have clean and cool air. I highly recommend California Air Conditioning System, they are professionals, honest and punctual,