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

"Great service! When we moved into our home we knew the AC and furnace were going to need to be replaced. After a year of the house being hot on one side and cold on the other we got some quotes to replace everything. McLay was not only the best price but I felt was also the most knowledgeable. They replaced everything and the house is much more comfortable now."

"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"

"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!"

"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!"

"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."

"From beginning to end all of our interactions with Southland have been positive. Ray who initially consulted with us consistently responds quickly and is great to work with. The lead on our installation, Willie, was professional and efficient, managing a complex job to a timely completion. Follow up by office staff to complete necessary paperwork for rebates has been outstanding."

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

"Very happy with their installation of a solar attic fan. Also work was completed in less then estimated time."

"I had actually thought that I lost the $69 certificate for my Dryer Vent Cleaning, so I thought I was out the money. I found it the day before it expired. I called the off ice and the lady said that they would have still honored it, which was nice.  When the person got to my home (I can't remember his name) he was VERY polite did his work without asking for any extra "upgrades" and even helped in moving the washer too so we could mop the entire area. Then he moved bothe the washer & Dryer back and even lined them up, which the original installers couldn't do. I know they also do A/C vent cleaning, and I will call them when I need the work done. FANTASTIC SERVICE
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"RKM made this almost a pleasure. We started with a service call to evaluate/fix the old A/C. Richard was on-time, skilled and helpful. RKM phoned to confirm appointments and sent email messages to keep us updated re: arrival times. When new equipment was needed - Robert helped us navigate the choices and design a system that was a more efficient Energy Star rated unit that met our needs at a price we could manage. We didn't need financing but, that was available as a reasonable option. Proposals, invoices and equipment brochures were all sent in detailed & easily understood email messages. Installation of the new system (furnace & A/C) went smoothly as scheduled. The installation team - Jonathan, Brian and Julio - were on-time, friendly and knowledgeable. They took care to protect our homes interior and yard. All of the old equipment was removed and new installed, tested, etc in one day. The new a/c compressor, made by Gorman is QUIET; It's only been 24 hours but, the house is COOL and we can't hear anything in the house or yard."