HVAC, Air Conditioning, Heating in Wilmington

California Air Conditioning Systems is the trusted name in heating, ventilation, and air conditioning services in the state. Our services are available 24 hours a day for all types of clients from Southern California, particularly in Wilmington and nearby cities. We offer quality services on air conditioning units, heating systems, indoor air quality diagnostics, duct leak test, and sealing. We also offer furnace repair, home appliance repair, and other relevant HVAC services. If you are looking for a reliable services provider, then you have us at California Air Conditioning Systems.

Our design, install, repair, and maintenance services have been trusted by countless clients for over 20 years, making us the leading HVAC solutions provider in Los Angeles County and South Bay areas. Once you hire us, you’ll meet technicians who are well-trained and experienced professionals. They can always deliver exceptional service and professionalism, leaving you satisfied with their work.

Let Experts Work on Your HVAC Systems


An efficiently operating heating or air conditioning system will definitely make your Wilmington home more comfortable and relaxing to stay at. You can also enjoy healthy living with a properly functioning system. These are only some of the reasons why we always recommend using premium products and reliable systems to ensure you’ll get these benefits.

For example, did you know that there are plenty of indoor air pollutants that can affect your health? At California Air Conditioning Systems, we address this concern by offering diagnostics and indoor air quality detection features to monitor and reduce these pollutants. This is also great for commercial locations since clean air helps keep things running smoothly in the workplace.

Servicing Wilmington and other Southern Los Angeles Areas


California Air Conditioning Systems has been providing various HVAC services to Wilmington and nearby areas for decades. Our technicians have already handled all types of HVAC issues and problems, so our clients are assured of expert services regardless of the complexity of the job at hand. Here are some of the HVAC jobs that you can hire us for:

  • Install and Repair of Air Conditioning. With us, your cooling system is installed, maintained, and repaired by the best technicians in Wilmington. With excellent installation and maintenance, you save money since you are preventing future repairs and replacements. This will also extend the life of your air conditioning system.

  • Heating System Installation and Maintenance. A reliable heating system will help you sleep soundly at night. We ensure that all your heating problems will be addressed once you call us for help. We also offer preventative maintenance to let our clients ease their worries. With this setup, we will check the heating system installation on a regular interval to make it work at its optimum level.

  • Duct Cleaning. Clean air ducts results in healthy and clean air circulating in the home. Without proper cleaning, the air quality deteriorates, making home owners prone to health issues. You can prevent mold growth and other air pollutants with our duct cleaning services.

For Round-the-clock Availability


You don’t have to worry whom to call when your HVAC system stalls or wait till morning just to get a technician. With California Air Conditioning Systems, we will be at your Wilmington property at wee hours of the day or even during holidays. Just call our hotline at (310) 530-0504. We have the solutions to all your HVAC problems.

HVAC contractors

We work with brands like Carrier, Lennox,York, Cozy, Williams, Mitsubishi, Trane and many others!