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!
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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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“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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“Quick to respond, easy communication, and easy to schedule. Compared service fees with several other companies, and 20th Century Air was the most affordable. Daniel was prompt, thorough, and a pleasure to work with.”- Nhi T.
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“Juan was punctual and very honest with his work. I really appreciate him bringing his own shoe covers for walking around the house. The pricing was fair.”- Sweet L.
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“Contacted them because the AC until I have was not putting out enough cool air. I had an event happening and it was short notice but they got Mario to come out. He did a great job and gave me a fair quote and took his time to make sure I was satisfied.”- A.S.
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“20th Century Air is fantastic, they have been servicing my home HVAC system for about 5-6 years now without any issues. All the techs are friendly and personable. I even recommend them to my clients for my home inspection business.”- Jeff B.