Business ProfileHVAC Companies in Anaheim, California
20th Century Air
20th Century Air
20th Century Air provides heating and air conditioning installation, replacement, maintenance and repair in Anaheim. Its offerings also include ductless mini-splits, commercial HVAC and indoor air quality.
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Business Highlights
- The company describes itself as family-owned and operated.
- The company says it has served Orange, Riverside and Los Angeles Counties since 1987.
- The company says its technicians are licensed and insured.
Service Area
Anaheim, Bellflower, Brea, Buena Park, Chino, Chino Hills, Corona, Covina, Diamond Bar, Fullerton, Garden Grove, Glendora, Irvine, Jurupa Valley, La Habra, La Habra Heights, Lakewood, Norco, Orange, Placentia, Pomona, San Dimas, Santa Ana, Seal Beach, Villa Park, Walnut, West Covina, Westminster and Yorba Linda.
Active Business Listing
20th Century Air is one of 12 HVAC companies ProsGrade lists in Anaheim, California.
Active
Public local listing
Listing details
7 services listed, including AC repair, AC installation and replacement and Ductless mini-splits. Open 24 hours, 7 days a week. 47 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How 20th Century Air compares with the other 11 HVAC companies on ProsGrade in Anaheim, using public Google ratings and review counts.
- One of 12 Anaheim HVAC companies on ProsGrade.
Trust Signals
Open 24 hours as listed; call for availability.
Services Covered
7 services- AC repairTechnicians diagnose the cooling problem before recommending work and service all makes and models, including central air, heat pumps, ductless equipment, thermostats and controls.
- AC installation and replacementThe company handles systems for single-family homes, HOA communities, new construction and small commercial properties. It assesses repair and replacement options and lets the customer decide.
- Ductless mini-splitsInstallation and repair for ductless mini-split systems; zoning is available for small homes or businesses with eight rooms or fewer.
- Heater installation, repair and maintenanceHeating installations are tailored to fit unique space configurations.
- Residential Club MaintenanceThe membership includes two visits per year, one for AC and one for heating, plus priority scheduling if issues arise.
- Commercial HVACCommercial AC installation, maintenance and repair are offered, as well as commercial heating service across Orange County.
- Indoor air qualityFilter and purification services target debris and airborne contaminants.
Reviews
What customers say
Recent customers mention technicians arriving on time and completing repair or maintenance work; one customer also praised Daniel's updates, a complimentary filter and a clear report that both heating and AC were running well. An earlier reviewer objects to a staff member's response after raising a parking concern, says an apology was not accepted, and reports that their photos were later taken down.
Customer Reviews
Tom Young
When my AC failed over the weekend, I scheduled an appointment for Monday. Juan and Adrian arrived on time, diagnosed and replaced the failed contactor in the compressor. They tested the repair and texted a link for the very affordable online payment. I was very satisfied with service a highly recommend 20th Century Air for fair, honest, and affordable HVAC installation (they did the new install in 2018), annual service and maintenance.
Rhonda Burns
February 12, 2026 reached out to 20th century air Inc. for our annual heating and AC unit maintenance. Spoke to Julie and she was able to schedule me for our next day maintenance. She provided excellent customer service over the phone. Thank you, Julie.
Daniel was our technician who came to our home, I smiled when he pulled out a pair of fluorescent orange shoe covers. I loved it.!!!! Great idea, he explained to us what he was going to be doing and would keep us updated on every step of his process which he did. He provided us also with a free filter and let us know everything was running great very impressed with our maintenance that we stay on top of with our heating and AC. Daniel provided us with excellent customer service. He went the extra mile. We were very well taken care of and if we had any questions or concerns, he informed us that our heating system and AC system were working great and were in great shape. Thank you again Daniel for the excellent customer service. Keep up the great work that you’re doing.
Big Grump
Same day service on a hot day is the best kind of help a man can ask for! They were fast and efficient. First place wanted to charge me a fortune for a new system; this was parts and maintenance (clogged air filter and blown capacitor). Highly recommend for a fair and honest deal!
Mdon7 6
Thank you 20th Century Air! My new AC works great. The crew showed up on time and finished the job the same day. I would highly recommend Scott and his crew for your AC and heating needs
Fidel “EL FM” Molina
After calling the number on the side and talking and texting with a lady she stil gives me attitude for calling out her employee for parking in a handicap spot when 12 other spots were available..Say it without the attitude or don't say it at all..So apology not accepted and yes I am disabled with an ATK amputation on my left leg...And now the company had my pictures taken down we're it shows their shifty trucks parked in a handicap spot..Oh well gd thing they are on yelp amd everywhere else
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Frequently Asked Questions
How does the company approach an AC repair versus replacement?
It assesses the system, explains the options and lets the customer decide; it says it does not push replacement when a repair makes more sense.
What does the residential Club Maintenance membership include?
It includes one AC maintenance visit and one heating maintenance visit per year. Members are placed on the priority scheduling list if issues arise.
What happens during a heater service appointment?
The visit begins with a full assessment. The technician checks thermostat operation and safety controls and looks for wear or inefficiency.