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Best air conditioning pros near San Ramon, CA

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Verified Reviews for Air Conditioning pros in San Ramon, CA

*The Angi rating for Air Conditioning companies in San Ramon, 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 San Ramon, 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 14, 2026

Top-Rated Air conditioning pros in San Ramon - 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 San Ramon, 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 San Ramon, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Fast and available when i needed them in a pinch. Sam did and amazing job! He listed out my options and walked me through each solution to get my air conditioning in working order ago. Would use this company again"
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 San Ramon, 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 San Ramon, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Rave review for Perfect Star Heating & Air Conditioning! Dylan Donzelli was very knowledgeable, thorough & helpful in checking ALL aspects of our heating & air conditioning system! I've now enrolled with them for annual checkups! Diamond Certified, A+ BBB rated, etc. A great company!!"
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
1852 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Alanis Air HVAC
Alanis Air HVAC
5.0(
20
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair

Serving San Ramon, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"I highly recommend this company to do your heating and air conditioning project. John Alanis and his crew did an excellent job and the pricing he gave us beat the competition. Thank you John and I’ll make sure to spread the word to my friends and relatives."
York Heat Pump
York 3 Ton heat pump
Coil removal
Condenser Removal
Ductwork

+4

Response time3 hrs
Response rate99%
45 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 San Ramon, 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

96 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for Elite Heating and Air LLC
Elite Heating and Air LLC
5.0(
24
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+1 more

Serving San Ramon, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Elite heating and air was very knowledgeable when it came to high efficiency heat pump mini split systems they put a multi zone in our 750 sq ft adu with a 12 year unit replacement warranty thank you once again"
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects

+14

Response time6 hrs
Response rate99%
39 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 San Ramon, 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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Jim's Air Systems
4.5(
12
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving San Ramon, CA and surrounding areas

Approved

In business since 1978

Free estimates

Warranties offered

"Jim's Air Systems had the best value for my dollar. They supplied me with better equipment than they quoted for the same price. They completed the entire installation in about five hours. They protected my floors with tarps and were very careful to protect my walls as they moved equipment in and out. Josh, the son of the original Jim, was on the job working with the other two installers. They performed above my expectations. They left my home and yard as clean as if they had never been there. The new furnace is wonderful and is already saving me money on my P.G. & E. bill. I would recommend Jim's Air Systems unconditionally to anyone in need of a new furnace and AC system. This is a family business that has been supplying and installing systems since 1976. They take personal pride in doing an excellent job. They did not sell me anything that I did not need and provided me with a much cleaner and easier-to-service installation than my existing system. They are the best!"
Response time11 hrs
Response rate100%
62 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 San Ramon, 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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Showing 1-10 of 342
Air Conditioning FAQs, answered by experts

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

Yes, you can build a deck over your outdoor HVAC unit, but you need to leave at least 5 feet of vertical clearance above the unit. If you don’t want your deck to be that high off the ground, you could build a floating deck in another part of your yard—again, as long as you leave at least 4 feet of horizontal space between the deck and your AC unit.

The San Ramon, 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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