Get matched with top swamp cooler installers and replacers in Diamond Bar, CA

"The Air-Tech team was amazing. By far one of the best customer service experiences I’ve ever had. From the initial call to get an estimate, to the follow-up with pictures of the install, every bit of the service was excellent. Thanks Air-Tech!"

"This was by far the best experience I've had when it involves repairs. My heater had been broken for a year. Because I'm on a fixed income, I couldn't afford to replace it. Quotes from others all recommended replacement. HD Mechanical gave me an estimate for repair and it was fixed right away, an at a fair price. Brandon and Tim are the best and are professional and dedicated to getting the job done without trying to upsell to unnecessary replacement. It works fantastic. They also happened to fix my ac as well, with no cost to me. If you are a woman alone, hire this company. They're honest and fair, and provide great service"

"I needed my HVAC system urgently repaired, the technician arrived promptly to resolved the issue. They were professional and knowledgeable and gave me honest recommendations & also was very helpful. Highly recommend! Thank you!"

"Mike was great! He was friendly and knowledgeable. He let me know all the options for replacing my water heater and did the work quickly and neatly. Will definitely be calling him again!"

"Installation went smoothly with great clean-up and follow-through. He had the metal shop make a protective cover for the air scrubber as it is mounted on the outside of the HVAC unit."

"Southland gave us the best quotes for our Heat/AC unit replace. They also told us about rebates from Los Angeles (other businesses we contacted did not mention this). Their crew were professional and worked hard. We especially appreciate the care of Nick and Elbert from Southland. The unit went up in a day and looks great (and works very well, too). We are grateful to Southland for the good experience and excellent customer service. Thank you!"

"PERFECT INSTALLATION WITH VERY PERSONABLE AND RESOURCEFUL PROFESSIONALS. I WOULD RECOMMEND THEM HIGHLY"

"Anthony Salerno came out to do a summer time tune up on my ac unit. He was vary professional and knowledgeable. He cleaned and tuned up my ac unit and gave me tips on how to make the ac unit run more efficient. Highly recommend his services again."

"Brandon answered the phone when I called, we scheduled the appointment, he showed up on-time, he went right to work and cleaned everything out.  He is a very pleasant and professional man, I will definitely bring him back to have my ducts cleaned in the spring.
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"My AC was not cooling. The tech verified the cause of the problem, diagnosed the whole system & identified the cause. He gave me a choice of how we are going to proceed with the repair should I want him to do it. He replaced the failing capacitor & my AC worked. He ran another diagnostics to verify the whole system is working. before wrapping things up. Excellent job."