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Verified Reviews for Air Conditioning pros in Clayton, CA

*The Angi rating for Air Conditioning companies in Clayton, 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 Clayton, 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 Clayton

Avatar for Smart Heating and Air Conditioning, Inc.
Smart Heating and Air Conditioning, Inc.
5.0(
17
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Clayton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Smart Heating and Air Conditioning was very responsive and came out when we really needed them. We were without heat as our old furnace no longer worked and our AC was on its last leg. Mike came out to give us a quote which was the best out of three that we had. He went over all options with us and now we are very satisfied to have a new and efficient heating and AC system. They lived up to their name as well, by upgrading my thermostat to a WiFi one that added that SMART touch to my system."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+27

Response time1 day
36 neighbors recently requested a quote
Recommended by73%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 Clayton, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Global Comfort installed a full HVAC system in my home; 7 new runs for air, new AC unit, new furnace and a new Nest thermostat, all electrical needs. Rudy and his team are respectful, efficient, punctual, competitive in pricing. Rudy walked me through running the system for its first time and explained all the stuff for a brand new system in a house that never had AC. I'm very thankful for the work they did. Highly recommend because their customer service is top notch."
Team Global Comfort Truck
Carrier Heater Changeout
Duct Install securing runs
Duct Install securing runs
Carrier 95% Installation

+9

Response time50 mins
Response rate94%
3 neighbors recently requested a quote
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Avatar for Perfect Star Heating , Cooling, & Electrical
Perfect Star Heating , Cooling, & Electrical
4.9(
346
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Clayton, 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
2276 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 Clayton, 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

111 neighbors recently requested a quote
Recommended by57%of homeowners
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Avatar for T.A.S.K.
T.A.S.K.
4.9(
236
)
Air Ducts & Vents - Clean

Serving Clayton, CA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"James is the best! I have used him for many years and he is my go-to for dryer vent cleaning. He is very experienced and also very reasonable in price. You can't go wrong with TASK."
4 neighbors recently requested a quote
Recommended by99%of homeowners
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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 Clayton, 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%
13 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 Clayton, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Guy who came gave me good advice and advised that he felt my issue was not needed for repair. He didn't try to sale me any service as he saw no need. I appreciate a plumber who isn't trying to get work out of people whom don't need it."
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%
49 neighbors recently requested a quote
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Avatar for Chill Heating & Cooling
Chill Heating & Cooling
4.3(
20
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Clayton, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The contractor was friendly, found the issue to my HVAC heating system, repaired and provided alternative solutions should I need to replace the system due to its age."
New Split System
Place for AC
NEW AC Condenser
OLD AC Condenser
NEW AC Condenser

+4

Response time2 hrs
Response rate100%
3 neighbors recently requested a quote
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Avatar for Tyndall HVAC, Inc.
Tyndall HVAC, Inc.
4.2(
108
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+1 more

Serving Clayton, CA and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"They were fast in going out to fix the Air Conditioner."
Response time1 day
15 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Ramirez Duct Cleaning
Ramirez Duct Cleaning
4.8(
91
)
Air Ducts & Vents - Clean

Serving Clayton, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Very professional team helped with cleaning and installed an air duct to my dryer. I’m happy with their service."
Response time6 hrs
13 neighbors recently requested a quote
Recommended by97%of homeowners
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Air Conditioning questions, answered by experts

No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

Florida rooms can have heat or air conditioning, although not all do. These rooms can be added to the existing HVAC system or use a mini-split system, or they may just use a ceiling fan or the breeze from the windows for cooling. Florida rooms with air conditioning often have glass windows to keep the cool inside instead of just mesh screens.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

This is a bit of a trick question. Even though the seasons arrive at the same time every year, the weather doesn’t always behave according to the calendar. So, while it’s fair to say that you can expect to turn on your AC starting in late May or early June, it all depends on the outside temperature and how cool you like to keep your home.

The Clayton, CA homeowners’ guide to air conditioning services

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