HVAC reviews in Lomita, California

I rarely leave negative reviews, but my experience with California Air Conditioning Systems was so appalling that I feel obligated to warn others.

Back in late 2024, I hired them for what was supposed to be routine HVAC maintenance at my house. Instead, their technician caused an electrical short that damaged my equipment, ultimately resulting in thousands of dollars in losses. Accidents happen, but what followed was pure negligence.

Despite multiple attempts to have them come back out, they failed to take responsibility or fix the damage they caused. I was left dealing with the consequences — out of pocket and without resolution. By January 2025, I had given up on them, and I ended up hiring another HVAC company. It took the other HVAC company multiple trips and several weeks to track down all the issues. In the end, I had to pay for a new smart thermostat, zoning controls and other equipment, and many hours of labor reprogramming my system and schedules.

By around March 2025, everything was back up and running after months of headache and several thousand dollars in costs, but I was ready to just move on with my life.

To make matters worse, in April 2025, after over 4 months of radio silence from them, they had the audacity to send me an invoice for the service that caused the damage. I naturally refused to pay, and they sued me in small claims court. I didn’t want to go through the headache and time of court, so I even offered them a settlement which they rejected. So, I counter-sued, and I’m glad I did. The judge ruled in my favor and awarded me almost $2,000 in damages. Not enough to cover my actual repair costs, but I guess it’s still something for all my troubles. Now I just have to collect.

California Air Conditioning Systems demonstrated a complete lack of professionalism, accountability, and integrity. If you're looking for reliable HVAC service, look elsewhere — this experience was a nightmare from start to finish.

I'm writing to praise the excellent service we received for our new AC replacement. The sales representative, Harry, was really knowledgeable and patient, explaining all our options and helping us choose the right Air Conditioning System for our office. On installation day, the technicians, Ralph with other Techs, were punctual, professional, and worked diligently to complete the job. We ran into an unexpected issue with old platform and ductwork after starting the installation, but they quickly identified a solution and kept the project on track, pricewise and timewise. Harry and the technician Ralph explained each step in how to resolve the issue. We are extremely satisfied with the new unit's performance, and we would highly recommend them for any HVAC needs.

Our gas furnace failed and a family member recommended California Air-Conditioning Systems. They responded immediately and diagnosed the problem efficiently. It took approximately 10 days to receive the necessary parts and the technician was scheduled the following day. He performed the necessary repairs most professionally. We were charged $590 for labor, $665 for parts and $130 truck charge.

I had a mini split A/C system that wasn’t blowing cold. The tech found a loose connection and filled the system with refrigerant. He checked the unit thoroughly to make sure everything was in order. The tech was super professional, on time, and thorough. I really appreciated him sharing all the info that left me feeling more informed about my system.

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.

If you’re looking for qualified friendly professionals at the top of their game, look no further. Absolutely impressed with the quick and knowledgeable communication I had with Harry and crew. I hired them to remove a double sided heater. The two men crew were absolutely delightful and efficient. They cleaned up and finished in no time. I asked for a reference for a handyman to patch up the drywall. Done! He was a great referral too. I highly recommend California Air Conditioning Systems.

Harry and his team were excellent and professional. They were able to have a technician, James, out to my property within a days notice. I greatly appreciate their efforts and helping me repair my boiler promptly!

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’ve tried multiple air conditioners over the years, and this one is easily among the best. It delivers powerful cooling without being noisy or inefficient. The eco mode works surprisingly well, allowing me to save energy while still staying comfortable. Highly recommended for anyone looking for quality and performance.”

I had a very positive experience with this HVAC company. They responded quickly to my call and scheduled a same-day repair. The technician was very skilled and fixed the issue without any delays.

Luis from Heating & AC Weather Engineer fixed my old home gas furnace by tracing down the problems with the pressure switch and the thermostat and then a defective air hose. He is very knowledgeable and then only charged $120 for the repair when other repairmen wanted $400 to $2200.

We chose Heating and AC Weather Engineer for their professionalism and pricing. Owner Luis Alvarez is very knowledgeable and has years of experience. He was very precise and thorough with his work installing our ductless system. He was also quick in answering any of our questions and concerns. Will continue to use him in the future. Thanks again Luis.

From the very first interaction, Luis impressed me with his punctuality and professionalism. He arrived promptly and was always well-prepared, with all the necessary tools and equipment to get the job done right. He was also very accommodating, working around our busy schedule to ensure that all the HVAC issues at our 18-unit property were resolved as quickly and efficiently as possible.

Most importantly, Luis was extremely knowledgeable about all aspects of HVAC repair and maintenance. He took the time to carefully diagnose each issue, explaining the problem to us in detail and presenting us with a range of options for repair. He was always honest and transparent about pricing, never trying to upsell or push unnecessary repairs or services.

Overall, I cannot recommend Luis highly enough. He is a true professional who takes pride in his work, and it shows in the quality of service he delivers. If you're in need of HVAC repair or maintenance, look no further than Luis - you won't be disappointed!

Luis is hands-down the best HVAC service expert I have come across. His knowledge of high-tech systems and ability to diagnose, design, and execute solutions is second to none. He saved our project after another contractor had botched the install and gone out of business in the process. Above all, Luis exhibits an outstanding level of trustworthiness, honesty, intelligence, and integrity— an extremely rare find in this era of construction standards.

This exceeded my dire expectations. The service was top-notch, exceeding my fears of a catastrophe. I'm thoroughly impressed and would highly endorse their work.

Joe did an excellent job installing our new furnace and AC. Highly recommend him - knows his stuff, does it right, and gets the job done on time. We're extremely satisfied with the service.

The heating system failed at my mother-in-law's place, but Joe fixed it within 10 minutes. The price was fair, and the service was efficient and courteous. I highly recommend this company for their quick response and competent workmanship.

Joe is our go-to person for home services. Whenever we need help, he's there - whether it's when the AC fails on a sweltering day or the furnace conks out on a freezing morning. He consistently goes above and beyond to get us back up and running while maintaining his professionalism and friendly demeanor. I highly recommend Joe to anyone in need of reliable service.

Joe fixed our furnace and cleaned the filter system at our place. He's super professional and got it done right. Highly recommend him for heating and cooling work - did a great job!

Joe is an extremely competent and seasoned HVAC contractor who consistently delivers high-quality work. His extensive experience ensures that the initial installation or repair is done accurately, avoiding potential issues left by other contractors. Joe approached our Heat Pump system with a thorough, methodical approach, addressing its rewiring needs, recharging with new Freon, and testing for proper air distribution in all rooms and vents during both summer and winter months. To mitigate the limitations of current heat pump technology, he installed an essential extra return to ensure adequate airflow. Given the industry's shift towards electric heating by 2030, it's clear that Joe is well-positioned to handle any HVAC installation or repair job correctly. I wholeheartedly endorse his services; he provides exceptional planning and professionalism in tackling any challenge.

We hired Joe's Heating and Cooling and were thoroughly impressed with his work. He displayed a high level of knowledge and professionalism during the installation process. What stood out was that he didn't try to sell us on replacing our old heater, which had been in the house since the 1970s - instead, he suggested waiting for it to break and then getting in touch with him.

He also went above and beyond for my 90-year-old mother by finding her a better deal. This level of honesty and dedication is rare, and I appreciate his willingness to put her needs first without being pushed to do so. In fact, if Joe's needs more expertise or resources, he should be compensated accordingly. Overall, I would highly recommend Joe's Heating and Cooling - they offer honest, hardworking service.