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Verified Reviews for Air Conditioning pros in Fremont, CA

*The Angi rating for Air Conditioning companies in Fremont, 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 Fremont, 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 10, 2025

Top-Rated Air conditioning pros in Fremont - 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 Fremont, 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 Valley Heating, Cooling, Electrical and Solar
Valley Heating, Cooling, Electrical and Solar
4.7(
1,755
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Fremont, CA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"My mother's house had air conditioning that was improperly installed so it wasn't really cooling anything but the bill was still running pretty high. So basically there was a leak in the duct. I would use them again for air conditioning."
Additional Photos
We provide HVAC sheet metal fabrication, blown in insulation with Owens Corning’s new AttiCat™ Expanding Blown-In PINK FIBERGLAS® and Solatube® installations to add light where you need it without the increasing your electric bill.
The SunSource® Home Energy System puts you in control of your monthly bills by creating and using solar energy, reducing your need for electricity from your utility provider.
Owners, Jeff and Cindy Faulkner
8 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Air & Plumbing Systems Inc.
Air & Plumbing Systems Inc.
4.6(
85
)
Central A/C - Install - For Business

Serving Fremont, CA and surrounding areas

Approved

In business since 2006

Free estimates

Offers commercial services

"They responded very quick and they found the problem. The part required was expensive and due to the age of the furnace I decided to purchase a new high efficent furnace. The price was fair and they installed it the next morning."
Response time2 hrs
Response rate93%
1 neighbors recently requested a quote
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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 Fremont, 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 Aire Serv of Campbell & Saratoga
Aire Serv of Campbell & Saratoga
4.9(
21
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business

Serving Fremont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1991

Free estimates

Emergency services offered

"Great team. While the job is messy as they have to work under your house. Aire Serv was great to work with. We needed new ducts and boots and my house is now moving air better than it has in twenty years. Highly recommend Aire Serv."
Furnace install
Heat Pump - Condo Install
Heating & A/C Project
Water Heater Replacement
System Swap Out

+58

92 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for Comfort Energy Inc
Comfort Energy Inc
4.6(
120
)
Ductless Mini-split A/C - Install or Replace

Serving Fremont, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Excellent-- we have no complaints at all - - They even provided free a portable room air conditioner unit to help us because we had to wait a few days on a waiting list- this company was so good it was in demand and we were put on a short waiting list"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Response time1 day
Response rate100%
11 neighbors recently requested a quote
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Avatar for Rittinger Heating and Air
Rittinger Heating and Air
5.0(
18
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Fremont, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

*****669-669-2435*****We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

Service maintenance
Service maintenance
Service maintenance
Service maintenance
Service maintenance

+6

16 neighbors recently requested a quote
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Avatar for Comfort Energy, Inc.
Comfort Energy, Inc.
4.3(
251
)
Ductless Mini-split A/C - Install or Replace

Serving Fremont, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I discovered a problem with my upstairs air conditioning unit after business hours on a Friday night. At that time I completed and submitted a request for service on Home Advisor on line. Comfort a Energy contacted me via telephone early the following Saturday morning. We scheduled an appointment for them to come out and diagnose my issue. Their repairman showed up promptly and diagnosed the issue and provided a cost for repair. I had them repair my air conditioner and I’m happy with the result."
COMFORT ENERGY AWARDS
Our Comfort Energy Team
COMFORT ENERGY AWARDS
Best of Milpitas 7 Years in a Row! 2015 - 2022
Angie's List A Rating

+27

Response time1 day
165 neighbors recently requested a quote
Recommended by93%of homeowners
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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 Fremont, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The cost to replace three natural gas wall heater was slightly less than Gree mini-splits heater cooler. The installers were courteous and professional. Delayed several days as the equipment haven’t arrived yet. Job cost as agreed, but took half day longer due to the complexity of installation. Results are excellent. The mini-split units works as specified. Will use Albert Nahman heating plumbing again in the future."
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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Jim's Air Systems
4.5(
12
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Fremont, CA and surrounding areas

Approved

In business since 1978

Free estimates

Warranties offered

"I had been using another company and bought an A/C system from them and there were problems. Josh explained the previous company did not install it correctly. He identified and corrected the problems with the previous A/C installation and installed a new A/C system and gas furnace as well. He was very professional, easy to trust, and he did everything he said he was going to do and was on time. The price was reasonable and he is honest and has integrity!"
Response time11 hrs
Response rate100%
53 neighbors recently requested a quote
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Showing 1-10 of 340
Air Conditioning FAQs, answered by experts

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

Yes, you should turn off your AC if it’s leaking. Turning off the system prevents more condensation from leaking and reduces strain on the unit if a damaged internal component or lack of refrigerant is the cause. While this may temporarily stop the leak, water can continue to drip from a thawing coil even after the system is off. As soon as you notice a leak, turn off the unit and investigate the source or call a professional for an inspection.

Deciding whether to replace just the AC coil or the entire system depends on the age of your unit and the overall cost. Replacing a coil is less expensive than a full system replacement, but it can still be a pricey repair. If your HVAC system is relatively new and still under warranty, or if the replacement cost is significantly lower than a new system, replacing the coil can be a worthwhile investment that restores efficiency and extends the unit's life. However, for older systems (nearing the end of their 10-15 year lifespan) or those with extensive damage, it is often more cost-effective to replace the entire AC unit. Mismatched coils in an older system can lead to inefficiency and future breakdowns, so a full replacement ensures optimal performance and avoids further costly repairs.

Set your house temperature between 55 and 85 degrees Fahrenheit while on vacation, depending on the season. If it’s winter, don’t go below 55 degrees. In the summer, the best AC temperature for energy savings is no higher than 85 degrees. You can save anywhere from 10% to 15% on your energy costs by adjusting the temperature while you’re away. If you have a smart thermostat, set up vacation modes for each season. On your way home, turn off vacation mode to allow the home to warm up or cool down before you arrive.

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.

The Fremont, 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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