Summer Specials are Here!

Click here to maximize comfort for your home, and wallet, this summer with our factory and union rebates. Hurry, offers end soon!

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Afraid of Opening Your Utility Bill?

Save Energy – Save Money

A high efficiency system can pay for itself by reducing your energy bills. New state of the art technology can save you money while providing additional comfort in your home. ACS Air Conditioning Systems can assess your home and provide you with options to make your upgrade easier. Contact us today for a FREE Energy Analysis.

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Are You Having a Major Breakdown?

Repair vs Replacement?

At today’s high cost of repairs and increasing energy bills, it may be wiser to invest in a new system than to dump money into an aging, inefficient system. Don’t wait for a major breakdown, call today for a free energy analysis.

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Let Our Family Take Care of Yours

Tired of Being Sold What You Don’t Need?

At ACS Air Conditioning Systems, a family owned business, we take the time to provide you with the best value. We will assess your home and give you options, so you can get a system that is tailored to your lifestyle and budget — all with no sales pressure.

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Let Our Skilled HVAC Professionals Help You Today!

We're proud of our years of service to the Northern California area and look forward to helping you with your air conditioning and heating needs.


Service & Repair

ACS Air Conditioning Systems’ highly trained, NATE certified technicians will diagnose your problem and provide you with pricing and recommendations. Our courteous technicians will also take measures to keep their work area clean and tidy.

Bay Area heating and air conditioning

Routine Maintenance

Routine maintenance ensures that your heating and cooling system performs as efficiently and reliably as possible. Regardless of whether your system is old or new, routine maintenance is the key to efficiency and longevity, just like an oil change for your car.


Home Solar Energy

Let the sun pay for your energy needs. ACS Air Conditioning Systems can help you save more energy with a small solar array. We can look at your current energy usage and provide you with options to reduce your utility bills. Go Green – Get Green!!

HVAC Service In Concord, CA And The Surrounding Bay Area

In 1969, ACS Air Conditioning Systems opened our doors as a Carrier® dealer with the idea of providing East Bay Area families with comfort solutions that fit their lifestyles and budgets. After over 40 years as a family owned business and Carrier® authorized dealer, our attention to detail and product knowledge have won over clients time and again and helped us earn our reputation.

Do You Need Heating and Air Conditioning Services in the East Bay Area?


Air Conditioning Installation And Repair

ACS Air Conditioning Systems has become the trusted service provider for the Bay Area’s cooling needs. We offer fast and experienced professional installation and repair of all air conditioning makes and models. Our service technicians will take care of your home as if it were their own. Click Here To Read More About Our Air Conditioning Maintenance And Repair Services >>

Heating And Furnace Installation And Repair

At ACS Air Conditioning Systems, we want our customers to be warm and comfortable all winter long. We can prep your heating system or furnace to be ready for when the winter sends its worst. And if you find yourself with no heat in the middle of a cold winter night, we’ll get you back to normal faster than anybody. Click Here To Read More About Our Heating And Furnace Maintenance And Repair Services >>

Solar Power Installation And Repair

ACS Air Conditioning Systems is excited to provide our customers with renewable energy through solar power installation and repair services. Solar can be installed on most rooftops, and once installed, it is guaranteed to produce energy for the next 25 years, offering responsible energy consumption and financial savings for a generation to come. Click Here To Read More About Our Solar Power Installation Services >>

Indoor Air Quality Products and Services

In order for you and your family and pets to have optimal health, indoor air quality should be the number one priority for every home. By installing products from industry leader Carrier®, we can reduce airborne pathogens such as bacteria, mold, and viruses, as well as reduce noxious fumes coming from carpet, furniture and other building materials. Click Here To Read More About Our Indoor Air Quality Products And Services >>

We Are The Oldest Carrier® Factory Authorized Dealer in the East Bay, CA Area!

Concord | Danville | Pleasanton | San Ramon | and Surrounding areas…

Click Here For Our Full Service Area