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Verified Reviews for Air Conditioning pros in Pasadena, CA

*The Angi rating for Air Conditioning companies in Pasadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

*The HomeAdvisor rating for Air Conditioning companies in Pasadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

Last update on August 11, 2026

Find Air conditioning pros in Pasadena

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+2 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Global Green Solutions did an excellent job replacing our old air conditioning system. The team arrived on time, worked efficiently, and made sure everything was installed properly. Our home feels much more comfortable now and the whole process was smooth."
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+24

Response time3 days
6 neighbors recently requested a quote
Recommended by7%of homeowners
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Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"AC Dave is great as a partner in our business. Facilitating all of our Air Conditioning needs including new units, routine maintenance and troubleshooting. They are great! highly recommended."
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+6

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
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Efficiency Air, Inc.
4.8(
321
)
Central A/C - Install

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Efficiency Air Inc is a fabulous company with excellent customer service and trained professional installers. I received a quote to install a mini split air conditioner/heat pump and we were overjoyed of the quality of work we received. They showed up on time and installed the system with ease. The install Manager â Deanâ was a true leader and got everything needed accomplished. I would recommend Dean and crew to anyone needing quality service. Thank you again for everything. Your lifetime customer Nathaniel G Santa Clarita, CA"
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
114 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Mor Air, Inc.
Mor Air, Inc.
4.9(
83
)
Central A/C - Service or Repair

Serving Pasadena, CA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"On a very hot weekend in L. A., CA , I sent an email on a Monday morning around 1:00 AM. Mario from Mor Air called me at 7:00 AM and was able to be at my house by 8:30 AM . My problem was resolved to my satisfaction by 9:30 AM.. We also set up a schedule of regular inspections on my air condoning and heating systems. Mario is my new go to guy for air conditioning and heating issues. The next contact on the list called me at 10:30 AM to find out if I still needed air conditioning repair."
Lost Condensers
Freon top off for a business
Gas furnace inducer motor replacement
Maintenance Service
Unit Install

+13

Response time2 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Around The Clock Heating & Air Conditioning, Inc.
Around The Clock Heating & Air Conditioning, Inc.
4.5(
836
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Pasadena, CA and surrounding areas

Approved

In business since 1967

Free estimates

Emergency services offered

"Our technician Oleg is very knowledgeable, punctual and a pleasure to work with. Our AC was not working during a brutal heat wave. We called Around the Clock and Oleg fixed our unit the same day... we have cool air now! A+ highly recommend. Thanks!"
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+10

Response time1 day
38 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Temp Air System, Inc.
Temp Air System, Inc.
4.8(
59
)
Central A/C - InstallCentral A/C - Service or RepairAir Ducts & Vents - Clean+1 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation

+14

Response time10 hrs
Response rate99%
9 neighbors recently requested a quote
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Avatar for Belle Air Services
Belle Air Services
4.7(
70
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I highly recommend Belle Air Services! From the first moment I called to get a quote, to the moment they finished the job, I could not have asked for better customer service, top notch work, and competitive pricing. They communicated with me all throughout the process, made sure I understood everything that would be done, were on time, protected my home and were clean. They even worked very well with my HOA (who is very tough!). And to top it off, they didn't try to up-sell me as other HVAC contractors have in the past. So pleased that I have found this HVAC company!!"
VRV - Multizone Comfort
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+9

Response time1 day
Response rate100%
3 neighbors recently requested a quote
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Avatar for McLay Services
McLay Services
4.8(
281
)
Central A/C - InstallCentral A/C - Service or RepairAir Ducts & Vents - Clean+2 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

"McLay Services did an excellent job on the preventative maintenance for my A/C system. Dylan was professional, courteous, and thorough throughout the visit. He replaced two air filters, cleaned the coils, and checked all electrical components to make sure everything was running safely and efficiently. My unit is now healthy and fully operational. I really appreciate the quality of work and attention to detail — I'd definitely recommend McLay Services to my friends and family!"
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+3

83 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
27
)
Central A/C - Service or Repair

Serving Pasadena, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Haroon Sayed came to our clinic, was prompt and professional and helped us with our air. We appreciate him."
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2 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

Yes, HVAC zoning is generally considered worth the investment by both experts and homeowners. Zoned systems offer significant benefits in convenience, efficiency, and comfort by allowing you to set different temperatures for various rooms or 'zones' in your house. This ability to heat and cool only the spaces you're using leads to energy savings and lower utility bills. Zoned systems are especially effective in multi-level homes that experience temperature fluctuations, but even smaller homes can benefit from the ability to adjust temperatures more quickly. While the up-front installation cost can be high, many find it's a worthwhile long-term investment, particularly for those who plan to stay in their home for a while.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

If the air coming from your AC unit is cool but never quite cold, there are a few reasons this might be happening. For starters, it could signal that your refrigerant levels are low. If there are no other indications of this particular issue, like hissing noises or frozen refrigerant lines, anything from dirty filters to damaged condenser or evaporator coils could be responsible for the problem.

The Pasadena, CA homeowners’ guide to air conditioning services

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

See all articles