Get matched with top central a/c installers in Diamond Bar, CA

"Brian came over to give us an estimate. He’s very friendly and polite, easy to work with. Answered all our questions and gave his recommendation without being pushy. Later we spoke with the owner, Dave, on the phone, who accommodated all our needs, gave us a great deal and upgraded our system with a medical grade filter at no extra cost. Pedro and his crew did the installation within a day. They were on time, worked fast, were super courteous, and cleaned everything up at the end. All in all everyone was very efficient. I was very pleased with their job and would hire them again without hesitation."

"Joseph did a clean professional install"

"The installers showed up right on time and were friendly and efficient. They quickly removed my old furnace and installed the new one, making sure to clean up any debris created."

"HD Mechanical did an amazing job. I felt safe hiring them to install my ac unit. They were very professional and they are very trustworthy. Would definitely recommend them to everyone."

"The service I received from Air-Tech was above my expectations. Alex made the selection process effortless and the installation was fast and efficient. The folks with Air-Tech are real pros."

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"

"Their tech arrived quickly and was courteous and friendly. He figured out the problem with my AC and the work was completed in a timely manner"

"Installer was very thorough and explained everything. He could even tell us how old our furnace was."

"Calls back within minutes. Quote was great. Installed within a few days and left the house in clean condition. Very professionall. The AC unit works great"

"Prompt and efficient service. Very thorough in explaining the process. Friendly technician! Would recommend and use again (hopefully not for the same issue)."