Consistently Providing 5-Star 

Residential Heating, Ventilation, & Cooling Services

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Air Conditioning Service

Typical outdoor air conditioning unit

A/C Repair, Installation, Replacement, & Maintenance

When the warmer weather is with us, there's nothing like enjoying cool air from your home air conditioner. But, when your central A/C isn't working right - or has failed outright, the temperature inside your home can become unbearable right away. The ceiling fan just doesn't cut it, and opening the windows just lets more hot air in. I know that you want to get your A/C system to working again. I can help...

Art's Heating & Cooling is rated one of the top HVAC contractor services in Alameda County and Contra Costa County. Whether you need an A/C inspection, A/C repair, A/C maintenance, A/C replacement, or a brand new A/C installation, you can count on me being your experienced, professional, & proven HVAC technician for the job.

Air Conditioning Contractor

My name is David Ghahramany (Gah-hra-many), and my customers are very important to me. My goal is to provide the highest quality service for your air conditioner system so you can be comfortable in your home when it's hot outside. I believe that informed decisions are the best decisions, so I clearly explain my findings, as well as the options you have. Take comfort in knowing that I never recommend things you don't need.

Join with numerous other homeowners who've chosen Art's Heating & Cooling for their HVAC needs, including air conditioner repair, installation, inspection, replacement, and maintenance needs. Enjoy peace-of-mind knowing that I am fully licensed & bonded and have hundreds of reviews on HomeAdvisor, Yelp, and Google

Air conditioning service & repair technician David Ghrahramany of Art's Heating & Cooling.

Air conditioning service & repair technician David Ghahramany of Art's Heating & Cooling.

Lennox Authorized Dealer

Many homeowners choose the Lennox brand of HVAC equipment because it's well known for high quality and outstanding durability.

Art's Heating & Cooling is proud to be your local authorized sales & service dealer for Lennox Heating & Cooling HVAC Systems.

David Ghahramany working on a Lennox air conditioning unit. (image provided by AC repair San Jose CA)

All HVAC Brands of HVAC Equipment Serviced

In addition to being designated as the local Lennox authorized service provider, Art's Heating & Cooling services ALL other brands of air conditioning & heating equipment, including from companies like Amana, American Standard, Bryant, Carrier, Coleman, Goodman, RUUD, Rheem, Trane, Day & Night, Nordyne, Gibson, Payne, Heil, Westinghouse, Tempstar, Arcoaire, and more.


California State License Board: Lic. 977736

Contractor's Bond: Bond Number 100298536


7 AM - 7 PM, Monday - Saturday | Closed, Sunday

For the fastest service

How an Air Conditioner Works

The 7 main parts of an air conditioning system are:

Evaporator - The evaporator is located inside the house. Cooling coils in the evaporator remove heat & humidity from the air passing by it using refrigerant.

Blower - A fan or blower circulates air over the evaporator and sends chilled air through the air ducts into each room.

Condenser - The condenser is located outside the home. It's hot coils release the collected heat into the outside air.

Compressor - The compressor is located immediately next to the condenser. The compressor is a pump that moves refrigerant between the evaporator and the condenser to chill the indoor air.

Fan - A fan blows air over the condenser to dissipate heat outside.

Filter - The air filter is located in or near the interior air conditioning unit, and it's job is to remove particles from the air.

Thermostat - The thermostat is a temperature control system who's job it is to regulate the amount of cool air that is distributed throughout the home.

image of how an air conditioner works

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What others are saying about Art's Heating & Cooling...

Professional - quick - and reasonable priced.

All the things you want

when your AC stops

working, and the temperature is in the +90 Degrees.

Karen M.

Home Advisor

David was very professional, arrived promptly and got right to work on my problem. He explained everything as he fully checked out the system. Very nice.

Richard C.


David took the time to explain the issue, answer some questions we had, and shared some DIY maintenance tips. He even took the time to install our new Nest thermostat.

Adan R.


Service Area

  • Alameda County
  • Contra Costa County

Alameda County:

Asco, Dublin CA (94568), Dougherty, Livermore CA (94550, 94551), Pleasanton CA (94566, 94568, 94588), and Ruby Hill Country Club.

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