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Best air conditioning pros near Livermore, CA

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Verified Reviews for Air Conditioning pros in Livermore, CA

*The Angi rating for Air Conditioning companies in Livermore, 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 Livermore, 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 June 22, 2026

Top-Rated Air conditioning pros in Livermore - Updated Nov 2026

Avatar for DUKES HEATING & AIR CONDITIONING
DUKES HEATING & AIR CONDITIONING
4.8(
135
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace+3 more

Serving Livermore, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Duke did a great job at a fair price. We needed AC and decided to replace our old furnace at the same time. In addition Duke wrapped with insulating bubble wrap our old ducts that were exposed. He tied the drip line into our existing downspout in a neat fashion. I'd highly recommend him (he's a fellow submarine vet too!!)."
Heat Pump Repairs & Installations
Central Air Cut-Ins
Electric Furnace Repairs & Installations
Response time1 day
Response rate100%
32 neighbors recently requested a quote
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Avatar for Smart Heating and Air Conditioning, Inc.
Smart Heating and Air Conditioning, Inc.
5.0(
23
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Livermore, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"The team at Smart Heating & Air Conditioning are second to none. Quality work and amazing customer service. Would recommend everyone to them for your heating and A/C needs!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+27

Response time1 day
30 neighbors recently requested a quote
Recommended by52%of homeowners
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Avatar for Global Comfort Heating and Air
Global Comfort Heating and Air
4.8(
52
)
Central A/C - Service or Repair

Serving Livermore, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."
Team Global Comfort Truck
Carrier Heater Changeout
Duct Install securing runs
Duct Install securing runs
Carrier 95% Installation

+9

Response time50 mins
Response rate94%
1 neighbors recently requested a quote
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Avatar for Perfect Star Heating , Cooling, & Electrical
Perfect Star Heating , Cooling, & Electrical
4.9(
351
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Livermore, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Gustavo was great! Showed up in the appointment time range. Introduced himself and was very clean and professional. Before he made entrance, he placed coverings over his shows, not to track any dirt or debris inside. He promptly went to work and fixed the problems I had. He also showed me how to clean the air filters with my AC mini split system. Great work and efficient and professional great person!"
Lead Install Tech Gilbert Caceres w/New AC Install
Lead Install Tech Gilbert Caceres w/New AC Install
New Furnace Installation
Lead Installers David & Gill on the Job.
Lead Installer David Mendoza hard at work.

+8

Response time4 hrs
1778 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Air Sharks
Air Sharks
5.0(
12
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Livermore, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Air Sharks are very professional and I think they did a good job on installing HP HVAC in our property."
Daikin Heat Pump Install
Daikin Heat pump Install and Duct Work
Before picture.
BEFORE
Daikin Heat Pump Install

+22

Response time1 day
Response rate100%
21 neighbors recently requested a quote
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Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+3 more

Serving Livermore, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Albert Nahman PHC installed new AC and Furnace for my house. I like them for several reasons -- 1. At first Tom explained in detail what equipment I need and how they work, and gave me a reasonable and detailed quote at end of the visit. 2. They offer interest free finance. 3. I got free upgrade for furnace when the original quoted is not available. 4. Their installer did good job, and cleaned up afterward. I highly recommend this company."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
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Avatar for General Air Technology
General Air Technology
4.9(
8
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Livermore, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."
Response time7 hrs
Recommended by71%of homeowners
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Avatar for Gosal Heating and Air Conditioning
Gosal Heating and Air Conditioning
4.3(
77
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Livermore, CA and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Project: Install a Central Air Conditioning System The project was top notch. Not only did they consistently show up on time, but they finished the project early and were willing to reschedule the final walkthrough multiple times to accommodate our city inspection. Final project turned out great!""
Roof top unit.
inverter board
repair furnace
Response time10 hrs
28 neighbors recently requested a quote
Recommended by88%of homeowners
Request Quote
Avatar for Bell Brothers Plumbing Heating & Air - Hayward
Bell Brothers Plumbing Heating & Air - Hayward
4.3(
140
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Livermore, CA and surrounding areas

Approved

In business since 1953

Free estimates

Warranties offered

"Bill, the ABC technician, was efficient, very knowledgeable, clearly explained my air filter options, thorough, personable...just like my experience always has been with ABC over several decades."
Before & After Furnace
Horizontal Install
Horizontal Furnace Install
Techs
HVAC

+17

Response time6 hrs
Response rate91%
Recommended by90%of homeowners
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Avatar for Air Control Mechanical
Air Control Mechanical
4.9(
8
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Livermore, CA and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

"I was so pleased with this company! Victor came out at 9:00 on a Wednesday night, determined that I needed a part for my AC, said he anticipated it should be in by Friday. What do you know...on Thursday at 6:00 p.m., I received a call saying a technician could install the part. By 7:00, voila, I had air conditioning!!! Jorge told me Victor absolutely impressed upon him that I needed AC...tonight. Many thanks for the prompt, friendly service and detailed explanations. Yes, I would wholeheartedly recommend this company of conscientious, responsive professionals!"
Response time10 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 281
Air Conditioning FAQs, answered by experts

A frozen coil can cause permanent damage to your HVAC system and lead to costly repairs if not fixed. It can cause the unit to overheat and also cause the compressor to fail. It’s vital to turn the unit off if the coil is frozen and address the issue as soon as possible. 

In most cases, you should hire a professional to carry out services on your HVAC system, as the components are complicated, expensive, and potentially dangerous to work with. However, there are a few things you can do on your own to keep your HVAC system in good condition, including changing your filters every three months, keeping the area around your outdoor condenser clear of debris and plant growth, making sure your or intakes aren’t blocked, and keeping an eye out for increased energy bills, strange noises, and unusual odors related to your equipment.

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

The Livermore, CA homeowners’ guide to air conditioning services

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

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