Get matched with top air conditioning pros in Cerritos, CA

Q: Can I replace an AC evaporator coil myself?

• <div><p>No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.</p></div>

Q: How much does it cost to fix a leak in an AC unit?

• <div><p>Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to <a href="https://www.angi.com/articles/it-time-repair-or-replace-my-air-conditioner.htm">replace the AC unit instead of repairing it</a>. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it&rsquo;s nearing a decade old and has other issues, consider replacing it. </p></div>

Q: Is a 3 ton AC too big for a 1200 sq ft house?

• <div><p>A 3-ton AC unit is probably too big for a home that&rsquo;s 1,200 square feet. If you have a 1,200-square-foot home, you likely need a unit that&rsquo;s somewhere around 1.9 and 2 tons. An AC unit that&rsquo;s too large will be really inefficient and cost you a lot of extra money on your bills. </p></div>

Q: Is it bad to run AC without water?

• <div><p>ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. </p></div>

Q: Why should you clean your AC unit?

• <div><p>After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and <a href="https://www.angi.com/articles/12-air-conditioning-tips-summer.htm">improving your indoor air quality</a>.</p></div>

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Verified Reviews for Air Conditioning pros in Cerritos, CA

*The Angi rating for Air Conditioning companies in Cerritos, 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 Cerritos, 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 May 11, 2026

Find Air conditioning pros in Cerritos

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 Cerritos, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Very happy with the new installation, replacement, and repair services for heating and air conditioning! The technicians were courteous, well-informed, and on time. They promptly resolved the problem and provided comprehensive explanations. A truly professional and trustworthy crew. Strongly suggested!"

+24

Response time3 days

7 neighbors recently requested a quote

Recommended by7%of homeowners

Request Quote

Total Home Environmental HVAC Co.

4.7(

112

)

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

Serving Cerritos, 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%

114 neighbors recently requested a quote

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Air Duct Professionals

4.7(

1,518

)

Air Ducts & Vents - Clean

Serving Cerritos, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Sean was great about repairing my disconnected dryer air duct having to go into the crawl space and figure out what was going on. I'm glad he was able to get it done very quickly as well. He also had a very good attitude about doing the work."

+11

Response time1 day

2 neighbors recently requested a quote

Recommended by92%of homeowners

Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Cerritos, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I had a ductless mini split system installed in my house. Juan explained that they do a complete installation, even the condensate drain that others didn't cover. Though there was a mixup on the initial quote, Juan stood by it for the system I wanted. The project manager Jeff came by as the very quick installation was concluding. He explained operation and answered my questions. As an architect used to reviewing construction work, I highly recommend B Green Air for their professional installation. They are also genuinely nice guys."

Response time5 hrs

Response rate93%

Recommended by100%of homeowners

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All City Plumbing, Air & Electrical

4.9(

272

)

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

Serving Cerritos, 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."

+42

11 neighbors recently requested a quote

Recommended by96%of homeowners

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Temp Air System, Inc.

4.8(

)

Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+1 more

Serving Cerritos, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Temp Air personnel are responsible, honest, knowledgable, and their customer service is top of the line. They were accommodating with a scheduled that worked for us. Also, the techs that came to our house were professionals and answered all of our questions. I highly recommend them."

+14

Response time10 hrs

Response rate99%

10 neighbors recently requested a quote

Central A/C - Service or Repair

Serving Cerritos, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Customer service was excellent. Helped me troubleshoot and prepare for the tech to fix my ac unit. Fixed in less than 15 minutes and great value for money!!"

Response time5 hrs

3 neighbors recently requested a quote

Recommended by94%of homeowners

Request Quote

Trinity Heating and AC

5.0(

)

Central A/C - Service or Repair

Serving Cerritos, 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

2 neighbors recently requested a quote

Recommended by90%of homeowners

Request Quote

All Around Heating and Air

4.4(

)

Central A/C - Service or Repair

Serving Cerritos, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Pete is professional and friendly. He repaired my central air conditioning system in a timely manner. He went beyond and above my expectations. I am very pleased with his work and I will not hesitate to hire him again. I will recommend Pete to my family and friends."

Response time7 hrs

Response rate100%

Recommended by97%of homeowners

Request Quote

Penguin Heating and Air Inc

5.0(

)

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Cerritos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"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 mold does not spread, and they left our house free of any mess. I'd recommend Penguin Heating and Air to anybody in need of AC/Heat service, repair, or installation."

Response time2 hrs

Response rate100%

13 neighbors recently requested a quote

Request Quote

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Showing 1-10 of 588

Air Conditioning questions, answered by experts

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

A 3-ton AC unit is probably too big for a home that’s 1,200 square feet. If you have a 1,200-square-foot home, you likely need a unit that’s somewhere around 1.9 and 2 tons. An AC unit that’s too large will be really inefficient and cost you a lot of extra money on your bills.

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with.

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

The Cerritos, CA homeowners’ guide to air conditioning services

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