20th Century Air Quality, Honesty, Reliability

Proudly Serving Orange County, Riverside County, & Los Angeles County Since 1987

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How Can We Help You Today?

Discover the 20th Century Difference

  • FAQ's Have Questions? We Have Answers!
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  • Get to Know Us
    Learn about our company history and who we are.
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  • Club Maintenance Membership Signup/Resign

    The Club maintenance membership includes 2 visits per year:

    One visit includes the maintenance of the air conditioning system.

    The other visit would include the maintenance of the heating system.

    As a club member, you would be on our priority scheduling list if any issues arise.

    As a club member, you would have exclusive discounts which would include:

    • 10% repair discount
    • 5% system replacement discount
    • 5% IAQ (Indoor Air Quality) discount
    Sign Up

Why Use a Smart Thermostat

One of the easiest upgrades for your HVAC system is moving to a smart thermostat that allows you to control your system from your phone. These programmable units ensure you get the best performance from your heating system by allowing you to set a schedule, so you don’t keep your home or business warm when no one is there. 

Many units can also alert you about maintenance issues or breakdowns, so there’s no question if your system needs a service. Or they’ll offer money-saving tips that increase energy efficiency by automatically changing temperatures while you’re asleep and improving the eco-friendly aspects of your home. Smart thermostats can also be paired with other smart devices to create a holistic system for your home so that you can wake up to a warm home and your favorite playlist. Further, increase the energy efficiency of your heater and lower utility costs with a smart thermostat.

20th Century Air works hard to keep our community warm with expert heating services in Orange County. Count on our skilled technicians with decades of experience to take care of your home or business, whether it needs installation, repair, maintenance, or a smart thermostat. 

Schedule your appointment by calling us at (714) 430-8006 or filling out our online contact form to learn more!

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Contact 20th Century Air Today!

We’re Ready to Help

A member of our team will be in touch shortly to confirm your contact details or address questions you may have.

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  • Financing Solutions Available
    Ask us about our available financing options. Our valued partnership with Service Finance means that we can help you through any emergency no matter your situation.
  • Customer Care Focused
    We are capable, experienced and willing to help you find HVAC solutions. We promise to do it with a smile on our faces and treat your home with integrity and respect.
  • 35+ Years Experience in HVAC
    With over 35 years in the HVAC industry, we believe in staying up to date on the latest technology and remaining dedicated to delivering quality solutions to our customers.
  • Family Owned & Operated
    We are proud members of our community and take pride in serving families like ours across Southern California. We're from the area, know the area, and take solace in knowing there isn't much that will surprise us in our service area.