ACS Air Conditioning Systems
Monday – Friday 8:00 AM – 4:30 PM
Saturday – Sunday Closed

ACS Air Conditioning Systems Serving the East Bay Area

Heating and Air Conditioning Service Covering Concord, CA and the East Bay

ACS Air Conditioning Systems is a Northern California HVAC service company that covers the East Bay Area of San Francisco, CA area; including: Concord, Danville, Lafayette, Orinda, Pleasant Hill, Pleasanton, San Ramon, Walnut Creek and surrounding communities. We offer a variety of heating and air conditioning services including emergency repairs, maintenance, HVAC system sales, installation and replacements. Our HVAC technicians are expertly trained to handle any and all of your HVAC requests, and we can even help you with home solar options for higher efficiency and energy savings. We are your local HVAC professionals and we will work with you to find the most affordable and efficient solutions for your home.

Air Conditioning | Heating | Indoor Air Quality | Solar Electricity Solutions

ACS Air Conditioning Systems has been serving Northern California and the East Bay for over 40 years!

We proudly service the following cities:

Concord
Danville
Lafayette
Pleasant Hill
Pleasanton
San Ramon
Walnut Creek
Orinda
Moraga
Benicia
Blackhawk
Alamo
Martinez

Just a quick note to thank you for the recent A/C installation. Both Darren and Justin were very thorough with the installation and took the time to explain the process to me.

This morning I turned the heater on to remove the overnight chill. I noticed a remarkable difference in the duct output, since Darren had replaced and sealed the duct extension to my unit. GOOD JOB!

I’m looking forward to the HOT summer and possibly lower energy bills………thanks to your help!

P.S. I just want to tell you that the building inspector was here this morning and signed off the job. He told me that whoever installed this unit “DID A GREAT JOB”.… [more]

Barbara S.

ACS has worked with us since we first purchased our present home in 2006. Successively they have installed a new HVAC unit, sealed and replaced older less efficient ducting, and most recently installed a zone system. Doug has always been very prompt with a quotation and ready with answers to many questions we had about cost, how the work would be done, and on what schedule. The technicians who performed the work were uniformly very polite, took extra care to not bring dirt into the house, and were very careful about doing first class work. The materials and equipment used are high quality, resulting in what in the long run will be the most economic cost. Doug and Justin will be at the job to inspect the working being done. We also rely on and recommend ACS for seasonal inspection and testing of our HVAC system. Donna, the owner, Doug and Justin, and their technicians are a top drawer operation.… [more]

Cap H.

The crew was meticulous when cutting into the hard wood floors as well as incorporating the existing old, gravity furnace opening, to the new system in order to not have to cut into my walls. Other than turning on the system and enjoying the heating and air, I would not have known they had been in my home. From my first call to when the crew completed the installation, the job was handled in a completely professional manner. The units they installed operate so quietly, I don’t know when they are on! And working with the owners Doug & Donna, was a complete delight! Because of their professionalism at my home, ACS now does all the repair and maintenance work for all the properties that I manage. From a large industrial building to a small rental, all I have to do is place a phone call and they take care of the rest. With total confidence, I highly recommend AC Systems.… [more]

Karen K.

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