Best air conditioning pros near La Mirada, CA

Q: How do I know if my AC needs repair?

• <div><p>There are several <a href="https://www.angi.com/articles/troubleshooting-common-air-conditioning-problems.htm">AC unit problems to troubleshoot</a>, but luckily you can identify them by keeping a close eye on your system. Look out for the following signs that your AC needs repair:</p><ul><li><p>Unusual noises during operation</p></li><li><p>AC unit blows warm air</p></li><li><p>AC unit doesn&rsquo;t come on or turn off with temperature changes</p></li><li><p>Strange odors come through the vents</p></li><li><p>AC unit cycles on and off rapidly</p></li><li><p>Indoor air is more humid or less comfortable than usual</p></li><li><p>AC unit keeps tripping your breaker</p></li><li><p>Fan in the outdoor compressor doesn&rsquo;t operate when the AC is on</p></li></ul><p></p></div>

Q: Does flex duct reduce airflow?

• <div><p>When first installed, flex ducts shouldn&rsquo;t cause airflow problems in your home. However, because flex ducts aren&rsquo;t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren&rsquo;t tight enough, your HVAC could work twice as hard for the same air pressure. If you&rsquo;re worried about the airflow in your home, a rigid duct may be your best bet.</p></div>

Q: How do you know if something is wrong with your HVAC?

• <div><p>Indications of an HVAC problem include inconsistent heating or cooling throughout your home, unpredictable temperature changes, or inadequate air flow from vents. Abnormal sounds such as grinding, banging, or hissing, and unpleasant smells like mustiness or burning are also potential warning signs. A rise in energy costs without an increase in usage may also imply decreased efficiency. An HVAC system that frequently cycles on and off or cannot maintain a stable temperature is malfunctioning.</p></div>

Q: How much does a new air conditioner capacitor cost?

• <div><p>A new air conditioner capacitor will cost less than replacing the entire air conditioner system. While a capacitor itself will cost between $8 and $25, paying a professional to replace an AC capacitor will cost $180 on average. It&rsquo;s not safe to replace an air conditioner capacitor on your own. </p></div>

Q: What’s the difference between a home surge protector and an HVAC surge protector?

• <div><p>The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.</p></div>

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Verified Reviews for Air Conditioning pros in La Mirada, CA

*The Angi rating for Air Conditioning companies in La Mirada, 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 La Mirada, 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 November 08, 2025

Reviewed in November 2025
Michael with QNZ Mechanical is a professional with what they offer. I contacted QNZ Mechanical and with great costumer service he helped me with any questions or concerns about the different A/Cs and which one best benefits me. On the day of the install they showed up on time and got to work....
QNZ Mechanical
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Reviewed in April 2025
Very knowledgeable, professional, and great customer service! Penguin, serviced our central AC & Heat and they explained everything to us before performing the work. They also replaced our moldy insulation in our attic. They packed and transported the old moldy insulations, ensuring that the...
Penguin Heating and Air Inc
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Reviewed in April 2024
I am thoroughly impressed with the exceptional service I received from HD Mechanical! Their team recently installed mini splits in my home, and the entire experience was seamless and professional. From the initial consultation to the final installation, their expertise and attention to detail...
HD MECHANICAL INC
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Reviewed in January 2024
When it was their turn, they moved fast and efficiently. They cleaned the attic, did air seal, and installed R38 all in the same day. Thanks for the great work.Amazing customer service and quality work.â Huge team and work effort left my home with higher environmental compliance,cooler,cleaner...
Insulation Labs
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Reviewed in December 2023
We couldn’t be happier with the work performed by One Stop Heating and Cooling. They responded quickly, were able to evaluate the situation, and have a solution for us. They were easy to work with and went above and beyond. Would highly recommend this company for your air conditioning and...
One Stop Heating and Cooling
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Reviewed in February 2023
Horton's Heating & Air Conditioning was awesome! They were professional did a quick job, and overall it was a great experience. I would highly recommend them!
Horton's Heating & Air Conditioning
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Reviewed in July 2022
Beach Air repaired our central air conditioning system promptly at a reasonable price.
Beach Air
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Reviewed in October 2021
We had a split mini system installed.. They removed old A/C,@ducts in attic and condenser outside and hauled away.. They are expensive, but they do quality work. Technicians well trained and know what they are doing. Friendly and very neat..
Service Champions Plumbing, Heating & AC
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Reviewed in September 2021
Dr. Cool air conditioning and heating, gave me a Very reasonable price on a entire heating and air conditioning system. The technicians were on time, professional, Courteous, and cleaned up thoroughly after all installations were completed. Our new air conditioning system is very quiet. We are...
Darrin Durbin
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Reviewed in September 2021
Had then install mini AC unit did the great job quick efficient and very friendly
Kressa, LLC
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Top-Rated Air conditioning pros in La Mirada - Updated Nov 2026

Global Green Solutions

5.0(

248

)

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving La Mirada, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"My experience with heating and air conditioning repair, replacement, and new installation was excellent. Their staff was amiable, well-informed, and meticulous. Our device is operating more efficiently than before. Really trustworthy service!"

+24

Response time3 days

8 neighbors recently requested a quote

Recommended by7%of homeowners

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Total Home Environmental HVAC Co.

4.7(

113

)

Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving La Mirada, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Gordon, is efficient, friendly and great prices. He went above and beyond to help me in an emergency when my air-conditioning broke down on a very hot day. Excellent customer service."

+17

Response time3 hrs

Response rate99%

69 neighbors recently requested a quote

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MSP Heating and Air, LLC

4.9(

328

)

Central A/C - Service or RepairAir Ducts & Vents - Clean

Serving La Mirada, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"This is the 4th of July weekend and our air conditioning went out!! We appreciated the quick response and the quality of the work performed by Danny. He was very thorough and quickly resolved the problem. He was very courteous and professional."

+67

Response time4 hrs

28 neighbors recently requested a quote

Recommended by94%of homeowners

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Air Duct Professionals

4.7(

1,518

)

Air Ducts & Vents - Clean

Serving La Mirada, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I've had Air Duct Professionals clean my air ducts in the past. As before, they do excellent work. They are easy to communicate with and are professionals in every way. I will continue to hire them to clean my air ducts in the future."

+11

Response time1 day

2 neighbors recently requested a quote

Recommended by92%of homeowners

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Temp Air System, Inc.

4.8(

)

Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceAir Ducts & Vents - Clean+1 more

Serving La Mirada, 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!"

+14

Response time10 hrs

Response rate99%

10 neighbors recently requested a quote

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving La Mirada, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"my air conditioner stopped working on a very hot day"

Response time1 day

Response rate100%

2 neighbors recently requested a quote

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Trinity Heating and AC

5.0(

)

Central A/C - Service or Repair

Serving La Mirada, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Chris came by for a normal AC tuneup and as he was finishing up, we told him about some issues with our dishwasher and master bathroom sink and asked if he knew a plumber. He took care of both our problems right then and there! I’m not sure there’s anything he can’t fix. Chris is our go to guy for EVERYTHING ac/furnace/plumbing and he should be yours too!"

After: 2 Stage Variable Speed Furnace installed perfectly!

After: Properly sized, energy efficient, and installed to code.

Before: Homeowner had tried multiple times to get the pilot light ignited.

Before: Old furnace not installed to code.

+31

1 neighbors recently requested a quote

Recommended by90%of homeowners

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SO CAL BOYS HEATING & AIR INC

4.9(

)

Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving La Mirada, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"These are some of the nicest people you will ever meet. They are very professional & yet make you feel very comfortable to be with them. I would recommend them to everyone who needs air conditioning or heating help."

Response time2 hrs

Response rate98%

18 neighbors recently requested a quote

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All City Plumbing, Air & Electrical

4.9(

273

)

Central A/C - InstallCentral A/C - Service or Repair

Serving La Mirada, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"I am so glad I did not try to install our new dishwasher myself. Joseph Rand came out from All City Plumbing. We had some difficult existing conditions and our technician finished the job fast, clean and made it look easy. When I call All City back to my home for another job I will request to have Joseph come out.."

+42

11 neighbors recently requested a quote

Recommended by96%of homeowners

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All Around Heating and Air

4.4(

)

Central A/C - Service or Repair

Serving La Mirada, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Very quick response and service on my AC"

Response time7 hrs

Response rate100%

Recommended by97%of homeowners

Request Quote

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Showing 1-10 of 620

Air Conditioning FAQs, answered by experts

There are several AC unit problems to troubleshoot, but luckily you can identify them by keeping a close eye on your system. Look out for the following signs that your AC needs repair:

Unusual noises during operation
AC unit blows warm air
AC unit doesn’t come on or turn off with temperature changes
Strange odors come through the vents
AC unit cycles on and off rapidly
Indoor air is more humid or less comfortable than usual
AC unit keeps tripping your breaker
Fan in the outdoor compressor doesn’t operate when the AC is on

When first installed, flex ducts shouldn’t cause airflow problems in your home. However, because flex ducts aren’t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren’t tight enough, your HVAC could work twice as hard for the same air pressure. If you’re worried about the airflow in your home, a rigid duct may be your best bet.

Indications of an HVAC problem include inconsistent heating or cooling throughout your home, unpredictable temperature changes, or inadequate air flow from vents. Abnormal sounds such as grinding, banging, or hissing, and unpleasant smells like mustiness or burning are also potential warning signs. A rise in energy costs without an increase in usage may also imply decreased efficiency. An HVAC system that frequently cycles on and off or cannot maintain a stable temperature is malfunctioning.

A new air conditioner capacitor will cost less than replacing the entire air conditioner system. While a capacitor itself will cost between $8 and $25, paying a professional to replace an AC capacitor will cost $180 on average. It’s not safe to replace an air conditioner capacitor on your own.

The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.

The La Mirada, 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

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