Get matched with top air conditioning pros in Cerritos, CA

Q: What is the most common rule used for HVAC load calculation?

• <div><p>A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn&rsquo;t very accurate, and a dedicated pro wouldn&rsquo;t use it for your home. If you talk to a pro who won&rsquo;t or can&rsquo;t perform a proper Manual J calculation, consider hiring someone more thorough.</p></div>

Q: What issues can a dirty air conditioning coil cause?

• <div><p>A dirty air conditioning coil can cause your unit to work overtime, leading to reduced efficiency, higher energy use, more wear and tear, and possible ice buildup. If the coils corrode, refrigerant can leak, causing damage, possible mold growth, and an expensive repair bill. By cleaning your AC coils once a year, you&rsquo;ll have a more efficient unit that&rsquo;s likely to last longer.</p></div>

Q: Should you buy a house with a 15-year-old HVAC?

• <div><p>You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit&rsquo;s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout. </p></div>

Q: How to calculate how much it’ll cost to run my window air conditioner?

• <div><p>Here&rsquo;s the cost formula to find out how much it&rsquo;ll cost you to run a window air conditioner in your home: <b>Watts * (hours used) / 1,000 * (Local kWh) = daily cost of running a window unit</b>.<b> </b>If you need help calculating the cost of running your window AC unit, consult an AC repair or installation pro for an accurate estimate.</p></div>

Q: Should supply air be equal to return air?

• <div><p>Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.</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 December 17, 2025

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

9 neighbors recently requested a quote

Recommended by7%of homeowners

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Total Home Environmental HVAC Co.

4.7(

101

)

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%

140 neighbors recently requested a quote

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Air Duct Professionals

4.7(

1,517

)

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

1 neighbors recently requested a quote

Recommended by93%of homeowners

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Temp Air System, Inc.

4.8(

)

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

7 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

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

4 neighbors recently requested a quote

Recommended by90%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%

1 neighbors recently requested a quote

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All City Plumbing, Air & Electrical

4.9(

271

)

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

10 neighbors recently requested a quote

Recommended by97%of homeowners

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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 - Service or RepairCentral A/C - Install - For Business+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%

32 neighbors recently requested a quote

Request Quote

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Showing 1-10 of 566

Air Conditioning questions, answered by experts

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

A dirty air conditioning coil can cause your unit to work overtime, leading to reduced efficiency, higher energy use, more wear and tear, and possible ice buildup. If the coils corrode, refrigerant can leak, causing damage, possible mold growth, and an expensive repair bill. By cleaning your AC coils once a year, you’ll have a more efficient unit that’s likely to last longer.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

Here’s the cost formula to find out how much it’ll cost you to run a window air conditioner in your home: Watts * (hours used) / 1,000 * (Local kWh) = daily cost of running a window unit. If you need help calculating the cost of running your window AC unit, consult an AC repair or installation pro for an accurate estimate.

Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.

The Cerritos, CA homeowners’ guide to air conditioning services

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