He was professional and helpful. Before departing, he even cleaned the work area and checked that my A/C was functioning properly.

I made sure they arrived on time. They explained everything they did and the thinking behind it in a very professional manner. extremely happy with the service. I heartily suggest them.

Very quick to respond when I called at the last minute because my air conditioner broke. A technician arrived to inspect and then make repairs. I sincerely appreciate your prompt response and the experienced, educated, and trustworthy individual you sent to fix my air conditioner. Even when we had to call in the middle of the night before, the pricing was always reasonable by AC standards.

With our AC installation, they went above and above what we had expected. Even the after-hours staff members shown a high level of professionalism. I really value the staff's attention to detail and the way they went out of their way to make sure we understood everything and could see what they were working on. Even for their installation appointment, they arrived early! I greatly appreciate it.

My new furnace and air conditioner were installed perfectly. Professional, on time, and respectful of my home. It's been a troublesome and our air conditioning needed to be repaired! We phoned California Air Systems, and they not only answered the phone right away and they came out to the house the same day, and the HVAC was entirely fixed and cool again!

Amazing! This is an incredible group of people to work with on all levels! In a residence with baseboard heat, we built an air conditioning system. The personnel was extremely courteous and pleasant. When you have questions, Harry Irvine is there and always willing to help! This company looks after its customers! Strongly suggest!

California Air Systems has handled my situations I've presented them with professionalism and competence.  Harry Irvine is excellent to great deal.  He absolutely got the issue and fix it. They may have even rescheduled certain appointments to ensure that my air conditioner was up and running and blowing cold air within a day of my notifying them about the problem. This company comes highly recommended from me.

Harry was very knowledgeable and thorough to his job. He explained everything he was doing to me in detail, which I very enjoyed. He performed a fantastic job cleaning out the exterior air conditioning unit. I also appreciate his leaving to get the necessary filter and returning within 30 minutes to make sure they properly install it. Overall, I am quite pleased, and I will enthusiastically suggest California Air Systems to my friends and family.

They promptly returned my call and arrived the next day to repair my air conditioner with prompt service and a fair price. The crew's professionalism, expediency, and ease of dealing with us have all beyond our expectations. Very thorough and productive. Would not hesitate to use service again or recommend to anyone.

During the summer, my air conditioning unit stopped working. The technician, Harry Irvine, discovered that the problem was simply a dirty sensor. He promptly repaired the problem and found that two air vents were nearly entirely disconnected. We had been concerned about our high utility bills throughout the summer months when running the air conditioner, and this was most certainly the cause. We were blown away by how far he went above and beyond.

It is a pleasure to provide California Air Systems with feedback. I requested that the units be serviced and maintained at our Apartment. Harry Irvine takes our calls, arranges the technicians, keeps track of their work, and bills them. The experts are courteous and professional, and they do their task on time. We've had a few situations due to lightning or equipment failure, and we've always had a quick response to get us back to a comfortable temperature.

Harry Irvine was incredible. He went above and above to help us with our air conditioning problem. When I told them we were having problems, they indicated it would be between 1-3 p.m. which was a couple of hours away. They called a minute later, surprised, and said he was on his way. In less than an hour, he had everything corrected. He was pleasant and helpful, and he thoroughly explained everything to us. I was really satisfied with the promptness of the response and the thoroughness of the service!

They came on-time figured out the issue in like 2 minutes and repaired everything pretty quickly. Nice guy. AC works well no complaints.

The service was excellent! The expert was trustworthy and arrived at the right time within the time frame I was given. Servicing is available 24 hours a day, in addition to explaining what was creating the blockage in our air-conditioning pipes and drain, he immediately resolved the issue and provided us with some suggestions for preventative maintenance.

Getting in contact with California Air Systems was a simple process. Harry Irvine is a true professional who is pleasant to work with. My entire HVAC system was being replaced. They were able to complete everything in one day, and thus far everything has gone well. The most important aspect of this is that his quote was significantly lower than the other one I got. If you're looking for a great installation or service I would highly recommend this company!

I would strongly suggest them to anyone. When it comes to repairing or servicing the equipment in our property, Harry Irvine is highly prompt, professional, and has a long-term perspective. On time, at a reasonable price, and with a highly professional crew. I've had my share of bad experiences with electrical contractors. I believe I have discovered the company that I will continue to use and refer to my friends and family.

We replaced our primary AC unit, so it wasn't a minor expense, and they delivered on their commitments with a superb installation and then a personal inspection by Harry Irvine to check everything was in working order. They completed the project in at least a week less time than anyone else was prepared to devote. It was a huge relief to have us up and running so quickly. We have had the best experience with a home service provider since moving and will continue to use them in the future. Excellent service and crew.

Harry Irvine installed a new AC. The install itself was smooth and really went above and beyond was answering my questions ahead of the install. I know I can count on Harry to assist me when we have issues at our rental properties. The cost was competitive. The whole process went smoothly and I always received prompt responses.

We had an excellent with California Air Conditioning Systems. They install our new AC units in our house. Harry Irvine was professional and thoroughly made the work efficient and very pleasant to deal with. Everyone was very efficient and professional, courteous of our home, and did great work. All expectations were met. Pleased with the result and will definitely continue to use them.

We chose this company based on a comparison of reviews for local companies. They were very professional and Harry Irvine was quite personable. We were expecting to have to replace our AC, but he presented us with options to choose from. They were very skilled and knowledgeable. Great experience to have them and communication is absolutely amazing. Reasonable cost and it's worth our budget. The follow-through from this company has been good, and they are timely. Relieved to have found a local business that we trust.