Air Conditioning in Orange County

20th Century Air, Inc. has been installing quality air conditioning systems in Orange County, LA County and Riverside County homes for over 30 years. We have extensive knowledge and expertise in the air conditioning industry and have developed a solid reputation over the years among homeowners, contractors, and businesses as a premier air conditioning installation, maintenance, replacement, and repair company. Our air conditioning services include:


We offer a broad range of quality air conditioning systems to suit your unique needs and budget. Our highly trained technicians work efficiently and professionally, and will leave your house cleaner than the way they found it. At 20th Century Air, we stand behind our work with a labor warranty. Contact us to learn more about the air conditioning services we provide. Zone Control Systems We offer Zone Control air conditioning systems. This means the air conditioning is controlled by multiple thermostats in different “zones” of the home with one central air system. It’s a great way to conserve energy and have each area of the home cooled to the temperature of your choice. We can help you determine whether Zoning is appropriate for your home, and best identify the zones so that your home is cooled the way you want it – and it will help you save on energy costs!


If your current air conditioning system is old, inefficient, and in need of more frequent repairs, it may be more cost-effective to replace the system with a new, more energy-efficient one. At 20th Century Air, we will give you honest feedback based upon our professional diagnosis of the state of your current system. If repairs will be easy, inexpensive, and infrequent, we will recommend repairs; however, if it makes more sense to replace the whole system, we will advise going that route. Either way, you can rest assured we will give you the full picture and recommend only what is most beneficial to you.


Is your air conditioner not cooling your home? Does it make a squealing or hissing noise? When is the last time your air filter was changed? All these things may indicate your air conditioning system needs repairs. There’s not much more frustrating than when your air conditioning breaks down during an August heatwave. Don’t worry – the technicians at 20th Century Air will be right there to fix it! We work quickly and efficiently, and we get the job done right. Our highly trained HVAC experts are intimately familiar with all makes and models of air conditioning systems, so your system will be up and running again in no time! We also offer a Summer Tune-Up Special if you prefer to take a more proactive approach – Only $59!


You know the saying, “An ounce of prevention is worth a pound of cure”? Well, that applies to your home as well! At 20th Century Air, we take a proactive approach and educate our customers how best to preserve the life of their air conditioning systems. Check out our Maintenance page for more information on our air conditioning tune-ups!