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Verified Reviews for Air Conditioning pros in Concord, CA

*The Angi rating for Air Conditioning companies in Concord, 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 Concord, 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 21, 2025

Find Air conditioning pros in Concord

Avatar for Smart Heating and Air Conditioning, Inc.
Smart Heating and Air Conditioning, Inc.
5.0(
18
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Concord, 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
37 neighbors recently requested a quote
Recommended by68%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 Concord, 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(
347
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Perfect Star has excellent technicians who can do installations & any service needs. They installed a new AC/heating system a few months ago. I intend to hire them again to update the ductwork in my residence. Tech was out today to tweak the thermostat setting to get max AC flow."
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
2074 neighbors recently requested a quote
Recommended by76%of homeowners
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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 Concord, 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

114 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 Concord, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"They came out quickly. Did the job properly replace the heating and air-conditioning unit very happy with their work and the price I would recommend them to anyone."
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects
Miscellaneous Projects

+14

Response time6 hrs
Response rate99%
76 neighbors recently requested a quote
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Avatar for Up & Above Heating & Cooling Services
Up & Above Heating & Cooling Services
4.8(
12
)
Central A/C - Service or RepairCentral A/C - InstallAir Ducts & Vents - Clean

Serving Concord, CA and surrounding areas

Approved

In business since 2014

Free estimates

Small jobs welcome

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!\n

damage duct
damage duct
old hard metal no insulation and air leak
old hard metal
broken duct

+36

Response time2 days
Response rate90%
11 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(
721
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+3 more

Serving Concord, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The repair person showed up on time, quickly diagnosed the problem, had a replacement part on hand, quickly repaired the wall furnace, cleaned up the dust/debris, and did a CO2 check."
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%
47 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 Concord, CA and surrounding areas

Approved

In business since 1978

Free estimates

Warranties offered

"I found Jim's Air Systems through HomeAdvisor, and Josh was the first contractor to reach out to me personally, not through an automated service. From the start, communication with him was excellent. I provided him with a detailed description of the job, along with model numbers and photos of my existing system. He reviewed everything carefully rather than giving me a quick, generic quote. I received another bid for comparison, but the other contractor was significantly more expensive and wanted to upsell me. It was refreshing that Josh understood I had done my research, knew what I wanted, and didn't pressure me into unnecessary upgrades. Josh's team arrived on time, completed the work as scheduled, obtained the required permit, and left my home as clean as they found it. Overall, a great experience and a solid value. I wouldn't hesitate to recommend them."
Response time11 hrs
Response rate100%
81 neighbors recently requested a quote
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Avatar for 411 Heating & AC, LLC
411 Heating & AC, LLC
4.5(
205
)
Central A/C - Service or Repair

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Sayed (owner) was first of 5 ac companies to give me a bid. Overall I feel he gave us the best deal for the money. Sayed is very knowledgeable in his field and was thorough in explaining our options. The work was completed on the same day we accepted the 411 bid and the new AC is a vast improvement over the old unit. I will recommend 411 AC and Sayed. Besides being knowledgeable Sayed is very friendly and something of a philosopher. (at no extra charge). Keith"
Attic HVAC install
Running duct work
proper drain running
HVAC install
NATE Certfied

+3

Response time4 hrs
Response rate92%
43 neighbors recently requested a quote
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Avatar for RIDGEBACK MECHANICAL
RIDGEBACK MECHANICAL
5.0(
20
)
Central A/C - Service or Repair - For BusinessCentral A/C - Install - For Business

Serving Concord, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Arrived early. Determined the problem quickly and repaired the air conditioner. I would definitely hire him again!"
Guages
Diagram
Internal picture
Internal picture
Response time2 hrs
Response rate90%
2 neighbors recently requested a quote
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Showing 1-10 of 394
Air Conditioning questions, answered by experts

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

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. It's normal for the AC compressor to cycle on and off intermittently in dry mode as it maintains the desired humidity level. The compressor cycles to prevent over-dehumidification and to maintain a comfortable indoor environment. This cycling behavior ensures efficient operation and optimal humidity control, contributing to the overall effectiveness of the dry mode function in your AC system.

It is normal for the attic to be hotter than the rest of the house in the summer, but only by about 10 or 20 degrees. Attics that aren’t properly insulated or ventilated can reach temperatures of 130 degrees or more which can cause damage to the home’s structure, including the roof, wood framing, and HVAC system.

The Concord, 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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