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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon213
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Stockton - Updated Nov 2026

Avatar for West Coast Air Conditioning
West Coast Air Conditioning
5.0(
11
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+4 more

Serving Stockton, CA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

West Coast Air Conditioning provides residential and light commercial heating and air conditioning services throughout Calaveras and San Joaquin Counties. Our services include HVAC repair, system replacement, heat pump installation, furnaces, air conditioning, ductwork, maintenance, and indoor comfort solutions. We specialize in helping homeowners evaluate their existing system and choose practical repair or replacement options based on the condition of their equipment and home. From routine service to complete high-efficiency HVAC and duct system upgrades, our focus is quality workmanship, clear communication, and dependable local service.

Heat Pump Upgrade
New Air Handler
New Air Handler
New Heat Pump
HVAC Transformation

+4

8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Ken's Air
Ken's Air
4.5(
113
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+5 more

Serving Stockton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Emergency services offered

Warranties offered

"Ken was great. Responded right away. Came soon and figured out our problems fairly quickly. Made the necessary repairs, plus he was able to service our HVAC unit. Everything was done in a short time. Very friendly. Good work. We will definitely have Ken do our annual checkup! We were so grateful to have our A/C cool our 2-story home in little time, especially during these awful triple digit temps weâ ve been experiencing! ð ð"
 New heater and coil
 New heater and coil
New heater & coil
Ruud furnace
Ruud condenser

+3

Response time4 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for TMC Heating & Cooling
TMC Heating & Cooling
5.0(
33
)
Central A/C - Service or RepairDucts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+2 more

Serving Stockton, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I hired TMC Heating & Cooling for duct repair. Tim Coronado was very knowledgeable and professional. The repair was quick and clean. He didn't try to "upsell" me. Because of this, I will be using him to maintain my HVAC units."
Energy guzzler
High Efficient Energy Saver
Mini Split Outdoor Unit
Package unit
After

+10

Response time3 hrs
7 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for AJAX Heating & Air Conditioning
AJAX Heating & Air Conditioning
5.0(
11
)
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace+2 more

Serving Stockton, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I called Ajax to service my 20+ year old unit. Ken answered my call, and came out immediately! I was afraid he was going to tell me to replace my unit… I didn’t have the money to do that.. I didn’t even have to tell him that. He explained in detail what was going on with my unit, replaced the recommended parts… and got my unit running so much better than it has ever worked since I’ve lived here! He even took pictures so I could see what he was talking about, and said with the annual plan, he could monitor the unit and keep it running as long as possible for me! Honestly!? Who does that? Thank you Ken for your quick response, your thorough, no hassle, honest interaction! He was even great with my animals!! If anyone needs an expert HVAC company… AJAX would be it! Thanks again Ken."
Gas/Pack W/ Ductwork
Gas/Pack W/ Ductwork
Down Flow Furnace
Down Flow Furnace
Upflow Furnace

+2

15 neighbors recently requested a quote
Avatar for Ramirez Duct Cleaning
Ramirez Duct Cleaning
4.8(
91
)
Air Ducts & Vents - Clean

Serving Stockton, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Antonio did a fantastic job. He cleaned every HVAC vent and ducting, the dryer vent and replaced the ducting between the dryer and the wall connection, all bathroom exhaust vents and the furnace blower and exchanger. Super clean. I was amazed on how much crud cam our of our systems. Excellent attention to details."
Response time6 hrs
11 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Loves Air
Loves Air
4.9(
7
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+7 more

Serving Stockton, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

History Establish 2009.\nLoves Air has become the premier Heating, Air Condition company in the Central Valley. With the hard work and dedication from our team of expert HVAC technicians, our professional customer service team, our amazing managers and our visionary leadership from our owners, we have climbed to the top where we can proudly say we're the #1 HVAC company in Central California. Our attention to detail and commitment to our values have helped us grow. We Loves servicing customers every day and continuing to grow into the industry standard for all things HVAC. Welcome to Loves Air! Heating, Air Conditioning, Solar, Windows & Water Heater Installation, A/C Repair, Air Duct Installation, Air Duct Repair, Ductless A/C Services, Electric Furnace Installation, Electric Furnace Repair, Flame Sensor Repair, Gas Furnace Installation, Gas Furnace Repair, Heater Installation, Heater Repair.

WATER HEATERS
WATER HEATERS
WATER HEATERS
WATER HEATERS
WATER HEATERS

+36

Response time2 hrs
Response rate91%
2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

The simplest indicator is how long it’s been since your last tune-up. You should schedule an annual AC tune-up each spring. Beyond that, there are multiple signs that your AC needs a quick check by a professional. These issues include higher-than-average energy bills, decreased air flow from vents, higher indoor temperatures, and an air conditioning unit that stays on all the time or frequently turns on and off.

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.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

The Stockton, CA homeowners’ guide to heating and air conditioning services

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