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Top-Rated Air conditioning pros in San Bernardino - Updated Nov 2026

Avatar for Champion Aire Heating and Air Conditioning
Champion Aire Heating and Air Conditioning
4.6(
192
)
Central A/C - Service or Repair

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"On July 6, 2018, when it was sizzling hot at 107 degree, my air conditioning system had water leaking suddenly. I was panicked and called all the numbers that I had of this company. It was 8:00 pm and I thought they were closed already. But in half an hour, Jake called me back to tell me he would send over somebody to solve my problem. At 10:30 Antonio and John showed up. When they finished the job at midnight, they were sweating all over. The following day Jake arranged Steve to double check. All of them were very nice. I greatly appreciate their care and hard-working. It is worthwhile to do business with them because they will still take care of the customers even after the project is completed."
Daniel Tai
Mike Gibson
HaPpy Client
Happy Costumer!..
Happy Client

+37

Response time1 day
Response rate95%
2 neighbors recently requested a quote
Avatar for AR Cooling and Heating, LLC
AR Cooling and Heating, LLC
5.0(
36
)
Central A/C - Service or Repair

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2012

Offers commercial services

Customers say: True professional

"Andy and Adrian are friendly and professional. They are punctual and thorough in their work, they make sure that the customer is satisfied with the work done. My husband hired them to install a new air conditioning unit over a year ago and we called them for the yearly routine cleaning now. Their prices are competitive. They are honest. We highly recommend them."
Response time7 hrs
Recommended by96%of homeowners
Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
4.9(
328
)
Central A/C - Service or RepairSwamp Cooler - Service or Repair

Serving San Bernardino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"We contacted MSP for air conditioning services. Their coustomer ratings on Yelp were great. MSP was able to come out right away. The team from Angel Perez, technician, to the installers, Don and Don and those that work in the office were nothing less than helpful, kind, professional, informative and courteous. The installation process was flawless and took just a few hours. The guys were very friendly but more importantly, they made us feel confident in what they were doing. We worked out the finances which was a very simple and easy process and by the end of the day we had nice cool air flowing on a day that had temperatures in the high 90s. We are very thankful and grateful to MSP Heating and Air Conditioning. I feel certain you would be too."
duct job all R-8 ducting
4 Ton GOODMAN Furnace
customer Vlastos
duct job all R-8 ducting
furnace install

+67

Response time4 hrs
28 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
273
)
Central A/C - InstallCentral A/C - Service or Repair

Serving San Bernardino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Tyler Jones from All City Plumbing Air and Electrical did a great job replacing a gas valve in our garage. He was friendly and easy to engage with, clearly knowledgeable, and took the time to explain what he was doing. The work was completed efficiently and effectively, and everything was handled professionally from start to finish. I’d definitely recommend Tyler and All City for plumbing and gas-related work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+42

11 neighbors recently requested a quote
Recommended by96%of homeowners
Superior Air and Heating Services LLC
5.0(
17
)
Central A/C - Service or Repair

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Heard about him from a friend, he is professional and clean. He gave me a solution for the problem I was seeing, cleaned out my houses ductwork and balanced it around the house. I will definitely be calling him again for any future AC needs."
Response time4 hrs
Response rate100%
Recommended by35%of homeowners
Avatar for Aace's Heating Air Conditioning & Swamp Coolers
Aace's Heating Air Conditioning & Swamp Coolers
4.5(
76
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+4 more

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"Frank was very efficient and came out in a timely manner to give me an estimate and handled the installation professionally and efficiently. Being that I am an out of the city owner and this is a rental property Frank did an amazing job to help streamline this process for us. The price was truly exceptional and the workmanship as well! Highly recommend Aces Heating & Air!!!"
Install
photos
Package unit
Happy customer
condenser

+133

Response time4 hrs
Response rate92%
118 neighbors recently requested a quote
Avatar for Imagine That Heating and Air Conditioning
Imagine That Heating and Air Conditioning
5.0(
34
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I recently had the pleasure of working with Imagine That Heating & Air, and I couldn't be happier with their service! From start to finish, they were professional, efficient, and incredibly knowledgeable. The team went above and beyond to ensure that my heating and air conditioning needs were met. Not only did they provide top-notch installation, but their customer service was exceptional. They took the time to answer all of my questions and made sure I was completely satisfied with their work. I highly recommend Imagine That Heating & Air for all your heating and cooling needs. They truly exceeded my expectations!""
Response time5 hrs
Response rate87%
2 neighbors recently requested a quote
Avatar for Socal Republic Heating And Air Conditioning LLC
Socal Republic Heating And Air Conditioning LLC
5.0(
17
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving San Bernardino, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"I hired Cristian from Socal Republic Heating and Air Conditioning LLC to install a new A/C unit, and the experience from the first call to the completed installation was outstanding. Cristian patiently answered all of my questions and concerns, began work promptly as scheduled, and left the area spotless—there wasn’t a single piece of debris when the job was done. A few months later, my brother also hired Cristian for an A/C installation and couldn’t thank me enough for the referral. I give Socal Republic Heating and Air Conditioning LLC an A++."
Air conditioning unit
Hvac system
Happy customer
Air conditioning unit
New system

+15

Response time4 hrs
Response rate100%
7 neighbors recently requested a quote
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FAQs for air conditioning projects in San Bernardino, CA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The San Bernardino, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.