Proudly Serving Orange County, Riverside County, & Los Angeles County Since 1987
About Us
Proudly Serving Orange County, Riverside County, & Los Angeles County
We are a family owned and operated company specializing in heating and air conditioning installation, replacements, maintenance, and repair in Orange, LA, and Riverside Counties. We have been in business for over 30 years and are proud to have earned a stellar reputation among our customers over the years – so much so that our business has grown and thrived by word of mouth from satisfied customers. We work with homeowners, contractors, businesses, and HOAs to provide state-of-the-art products and workmanship with “20th Century Service” based on reliability, honesty, professionalism, and fairness.
Call (714) 430-8006 today to learn how we can meet your heating and air conditioning needs. We look forward to serving you!
Let’s Get to Work
How Can We Help You Today?
Discover the 20th Century Difference
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FAQ's Have Questions? We Have Answers! -
Get to Know UsLearn 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
Trusted For A Reason
Our Customers Say It Best!
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“Scott is easy to get a hold of, and the technicians that installed the system were very knowledgeable. California summers seem like they're getting hotter every year, so we are very grateful for AC!”- Sofia A.
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“These guys are very knowledgeable and efficient with their work. They gave us options that fits our budget. New AC and ducts within 8 hours or less. Also took care of our old unit. Highly recommended.”- RV F.
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“We have found that 20th C Air gives the best prices on the highest quality condensers. The owner Scott is kind and responsible and ready to give great customer service, even when unexpected hiccups appear.”- A. L.
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“Jeffrey came (earlier than scheduled, which was awesome) and spotted what was wrong right away. We were able to fix things temporarily but will need to replace our entire system eventually. He gave us a quote for whenever we are ready. No pressure was felt”- Cynthia E.
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“Daniel my guy! He came through and fixed our AC. I had a feeling it was the filter or freon. He came showed me where to change the filter. And recommended me do it every 3 months. He didn't try to up sell me on anything. Kept it real and kept the AC runnin”- Don S.