Get matched with top air conditioning pros in Diamond Bar, CA

"Very happy with the new installation, replacement, and repair services for heating and air conditioning! The technicians were courteous, well-informed, and on time. They promptly resolved the problem and provided comprehensive explanations. A truly professional and trustworthy crew. Strongly suggested!"

"Sean was great about repairing my disconnected dryer air duct having to go into the crawl space and figure out what was going on. I'm glad he was able to get it done very quickly as well. He also had a very good attitude about doing the work."

"Temp Air personnel are responsible, honest, knowledgable, and their customer service is top of the line. They were accommodating with a scheduled that worked for us. Also, the techs that came to our house were professionals and answered all of our questions. I highly recommend them."

"The team from Trabuco Hills Air did a fantastic job. They were thorough, courteous, and extremely professional! Thank you so much to Tim and everyone at Trabuco Hills Air. They were such an amazing pleasure to work with. I truly appreciate all you did for my family and forever grateful for the Nest thermostat. I highly recommend Trabuco Hills Air for all of your Heating/AC needs. Thank you again!!!"

"McLay Services did an excellent job on the preventative maintenance for my A/C system. Dylan was professional, courteous, and thorough throughout the visit. He replaced two air filters, cleaned the coils, and checked all electrical components to make sure everything was running safely and efficiently. My unit is now healthy and fully operational. I really appreciate the quality of work and attention to detail — I'd definitely recommend McLay Services to my friends and family!"

"Chris came by for a normal AC tuneup and as he was finishing up, we told him about some issues with our dishwasher and master bathroom sink and asked if he knew a plumber. He took care of both our problems right then and there! I’m not sure there’s anything he can’t fix. Chris is our go to guy for EVERYTHING ac/furnace/plumbing and he should be yours too!"

"Ray is very professional, and provided options for my air conditioning unit replacement. Ray went out of his way to replace a small gas line leak that he found. He also drove to Anaheim early on Saturday morning to pick up a part that was needed for the AC unit, and came over to install it so that I would have the air conditioner available for the upcoming heat wave this week. He and his team were on time, and considerate during the installation process. I highly recommend RS Air Conditioning & Heating."

"The team that came out to replace our home ducting was awesome! They were friendly and knowledgeable. They left everything neat and clean. Would defiantly recommend!"

"I am so glad I did not try to install our new dishwasher myself. Joseph Rand came out from All City Plumbing. We had some difficult existing conditions and our technician finished the job fast, clean and made it look easy. When I call All City back to my home for another job I will request to have Joseph come out.."

"I was able to get a same day appointment and get my AC fixed quickly. Very professional. Highly recommend."