One of our Core Values is “Exceed Expectations” which recognizes that Our Customers’ Satisfaction Is Our Success.  We have many happy clients who would love to share their stories with you. Take a look through some of their testimonials below.

      "They Provided Customized Solutions Tailored to My Needs"

      I recently had the pleasure of working with Cooper Oates HVAC for a complete cleaning and service of the heating and cooling system at the Chico VA, and I couldn't be more satisfied.

      From their prompt arrival to the thorough service, their team demonstrated exceptional professionalism and expertise. They provided customized solutions tailored to my needs, explained everything clearly, and ensured I felt confident in the service provided. The skilled technicians respected my facility and left it spotless.

      The quality of their work is outstanding, with my two industrial units—one 100-ton and one 125-ton HVAC system—performing flawlessly and significantly reducing my utility bills. Their follow-up and customer service were exceptional, showing their commitment to long-term satisfaction. I highly recommend Cooper Oates HVAC for their dedication to excellence and customer care, making them my go-to HVAC service provider.

      Matthew Huff Hignell Companies
      "Best HVAC Company in California"

      I recommend your company to anyone who is interested in a comprehensive, action-oriented, safe, friendly, and professional HVAC company. I am very happy with the level of service and the quality of the product and installation I received when I hired Cooper Oates. I have confidence in Cooper Oates and would hire this company over any other HVAC company in the state

      Janet Rollins Sacramento County Public Law Library
      "Your Plumbers Did a Great Job"

      Just wanted to let you know that your plumbers did a great job, and I’m very happy with the service I’ve received from you and Cooper Oates. Thank you!

      Patrick McGale Facilities Manager, Oakmont of Folsom
      "I Have Had Nothing Other Than Exceptional Success and Joy Working With Cooper Oates Company"

      I have had nothing other than exceptional success and joy working with Cooper Oates company.

      First off, they take photos of whatever they are communicating to be a problem. I'm not up on the roof with them, so rather than having to rely on their word alone, they are building my trust and confidence by taking images of any existing problem AND images after their repairs. This is exceptional.

      They are fast, efficient, courteous, pleasant and considerate. Personal connection and relationship-based business is becoming more and more rare. It is such a relief to find caring human beings who pick up the phone and don't route you through endless wasteful phone trees when you call them.

      Thank you so much....all of you at Cooper Oates Air and Plumbing Services! I am very blessed to have found you!

      Monica Crooks Dr. Monica Crooks, DDS
      "Their Team Answered Our Call on a Busy Holiday Weekend"

      We highly recommend Cooper Oates Air Conditioning for their outstanding service, expertise, and professional team members. COAC is one of our top go-to subcontractors that we use on nearly every construction project! They are reliable, honest, and timely. Just earlier this year, their team answered our call on a busy holiday weekend. COAC showed up to the site within 2 hours and resolved the issue right away.

      This is the kind of routine thing that they do at COAC: They take care of their customers and business partners. We can't thank them enough!

      Jade Garza Massie & Company
      "Solid, Timely and Knowledgeable Performance"

      I’ve had the pleasure of working with many technicians from this company. I have had a solid, timely, and knowledgeable performance every single time. We have a ton of HVAC used in controls for critical environments.

      10/10 would recommend, even over the manufacturers of the units, unless necessary for proprietary circumstances. I plan to use COAC for all HVAC and where possible environmental control diagnostics.

      Taylor Carlberg Operations, DASH/CAM
      "Courteous and Responsive"

      Everyone there from techs to office staff is courteous and responsive. They do great work.

      Curtis Piatt The Ambiance Group
      "Great Effort, Detail and Safety"

      Great work and thank you for all of your team’s efforts, detail, and safety in regard to this Heli pick. Sure appreciate you all.

      Tyler Elmer Executive Vice President, Renaissance Construction
      "Phenomenal Service"

      Our property has experienced phenomenal service from Cooper Oates Air Conditioning. Their service coordinators do an exceptional job with communication and scheduling. They always work to accommodate our residents, even when we call last minute, and make sure that we are taken care of. The technicians and office team always take the time to explain an issue, making sure that our team is up to date and understands the repair. They are life savers when it comes to emergency and after-hours calls! Residents are never happy when their AC goes down, but thanks to COAC, we are always able to get their AC up and running quickly.

      Alison Walter The Angelino
      "Best Company"

      In all the years that we have had our business, we have never had a better company than COAC. They are so easy to work with and their customer service is amazing. I wish every company that I dealt with was like them. They take such good care of us and all our air conditioning needs.

      Teresa Maximum Fitness in Vacaville
      "New Control System"

      Thank you for taking a few minutes to talk to me yesterday while you were out to perform maintenance on the system. What a nice change from what we have dealt with for years. Since the new system has been properly adjusted by the COAC team, we have had very few complaints. This has made a piece of my job tons easier. So on behalf of the DHHS tenants, a very big THANK YOU for the new control system.

      Teresa Heckley ASO II - DHHS - Facility Management
      "Top Customer Service"

      We want you to know that we are very pleased with the service you gave us on our AC unit that was down. It was a trying situation dealing with landlords but your patience was appreciated. Your techs did a great job of getting our AC back up. I especially want to thank you for your customer service, follow through and letting me know what was going on.  Your team dealt with a difficult situation and we really appreciate the way you took care of our problem. We have air now and our staff is Happy Campers! Again thank you for great customer service.

      Tom Cabrera Mailing Systems, Inc.
      "Great Communication"

      Your COAC team provided great service.  We very much appreciated all the necessary communication that transpired between all parties that made this project run smoothly.

      Ralph Goulding Chief of Plant Operations 1 - Business Services Branch - DES Administration
      "Knowledgable Technicians"

      Awesome—we are up and running again and this diffuser over my head never felt so good! You tell the bosses over there that your service tech is incredible—fast, knowledgeable, sweet as he can be and on a scale of 1 to 10, he’s a 12!

      Rhonda Higgins Office Administrator - DMG North, Inc.
      "Hard-Working Team"

      We were very happy with the services your company provided to us. German was very professional and detailed. The installers worked very hard and did an excellent job installing our air conditioning units. We are glad to have found your company and look forward to doing future business with COAC.

      Joanne Kim Network Coordinator/Interim Manager - Rehabilitation Management Systems, Inc.
      "Perfect Installation"

      Coils are working fantastic, you guys did a perfect install.

      Darrin Kean Director of Plant Operations - Oroville Hospital
      "Reliable HVAC Maintenance"

      Cooper Oates Air Conditioning keeps our HVAC equipment running smoothly. Dispatch is always readily available by e-mail and cell. Whether I’m in the office, inspecting properties or out of town, a quick e-mail or call from my cell and help is on the way. COAC eases property management challenges.

      Sharyn Verdon Ramco Enterprises, Inc.
      "Professional Work"

      I want to thank Cooper Oates for the recent work performed at the Elder Creek facility. (Technicians) Mike and Andrew did an outstanding job taking care of the issues we had. They made sure all work was done in a professional manner and did a great job communicating to me the process and did a great job cleaning up debris.

      From the preliminary findings in the VP offices, there is much improvement in the noise level and balance of air distribution now. Again thank you for a job well done!

      Greg Magness Facilities Director - American Building Supply
      "Precise HVAC Redesign"

      I would like to thank you all for the successful completion of the HVAC redesign in the Bureau of Nursing recently. Recognizing and rectifying this complex issue portrays your dedication to customer satisfaction. The tenant is very happy with the operation of the system and is reporting excellent comfort levels.
      The project progressed smoothly and precisely as scheduled. I received no complaints or concerns during the project. It went so well in fact that I did not visit the project once until it was completed. I have complete confidence in (your Foreman) Anthony Vallejos and had no inclination that his jobsite was anything but perfectly tended. The only job issue was that the access card which I issued that never worked correctly. Anthony was very adaptable and got the job done anyway.
      Please accept the sincere appreciation from Consumer Affairs and the Bureau of Nursing.

      Mark Elliott State of California Department of Consumer Affairs
      "Detailed Service"

      I would also like to specifically mention that Richard performed an excellent job with attention to detail, patience and was quite responsible. He was great to work with.

      Scott Davis Director, Facilities Development - Roseville Joint Union High School District