Diamond Air Services - Heating and Air Conditioning - Arcadia, California

B P

Great communication, always on time, very professional and very knowledgeable. At my previous home Diamond Air installed a new HVAC system and I was very impressed and very pleased with the high level of service I received. I sold that home recently and purchased a new home that also needed a new HVAC system. I called Diamond Air again to get a new HVAC system at my new home and I was not disappointed. Anthony is still the owner, came to give me an estimate and remembered me as an appreciated previous customer! Once again I was extremely impressed by their great communication skills, written fair quote, professional, very knowledgeable and curteous technicians. They were so pleasant to work with in every step of the process. I have another beautifully installed, brand new, high efficienct HVAC system and I am very pleased and grateful for Diamond Air and their exceptional service again. I highly recommend Diamond Air!

Kai Chee Chan

We hired Diamond Air Service to install a new AC system for our office, and we couldn’t be happier with the experience. The quote was competitive, detailed, and professionally presented, clearly outlining all the necessary work. The technicians were friendly, efficient, and ensured the job was completed on time with excellent attention to cleanliness. Communication throughout the process was seamless, and the entire project was handled with great professionalism. We highly recommend Diamond Air Service for their outstanding service and quality work.

Melissa Delgado

Diamond Air is fantastic to work with! They are extremely professional, and we always receive a response in a timely manner. We use them for our commercial properties, and they always provide us with the best deal as well. Would highly recommend to anyone needing HVAC services.

Linette Freire-Molina

Many times we overlook things when they go right and this is one of them. To give you guys a little background, we started shopping for a new air conditioner and furnace when ours was still working (more like barely chugging along) but felt better to be ahead. Our a/c was the original Carrier unit that came with the house from 1976 and the furnace (Goodman) was about 3 years old (3 ton), with the a/c outside unit piecemeal with a fan that was replaced about 10 years earlier. Okay, it was some kind of Frankenstien unit but it worked every time and did not fail us, but it had a heavy energy appetite when it came to use. Our bill was huge! We researched eleven companies and Diamond (Anthony) was provider number four. We were impressed with how he did not try upselling us at all. Everyone was trying to say we needed a 5 ton and adding things we did not need like a smart thermostat (when we had one) . He was clear, concise, honest, & took pictures to illustrate his points when he went in the attic. He was game to work with us when it came to brands and communicated in a manner that had us all on the same page. If I had an inquiry, everyone always responded in a timely manner. Prices were also some of the fairest we found because we were not
I did not think Diamond could shine even more until the crew arrived. Seeing Will and Carl work together and speak with each other, well they are like a married couple. They troubleshoot and game plan the install. No one is trying to outshine anyone else and really work as a team. They know their stuff and it shows. We have a concrete tile roof and they even had a guy, Mike, who read the page provided by the tile company on how to walk on these tricky roofs and he did it without damaging anything.They are caring, considerate, and left us in awe. The bosses even come by to make sure things are moving along and getting anything the guys need, down to one dropping off lunch for the crew to keep momentum! The job never felt hurried, but kept at a steady pace. The furnace closet was insulated and it's a work of art. I even purchased a silver colored plug plate because you simply have to compliment good work. Teamwork is not a show, it really is how this company moves along.

There are many companies and we went through some that really seemed good until there were errors on the estimates, things talked about that were missed entirely, important items not listed and I won't even count the guy that gave us an estimate and details related to a two-story house and ours is one story. Just not paying attention and that costs time and money. There was no confusion with Diamond! That helps me feel better and they go out and after every visit, they make sure to establish contact and address anything that yielded from that visit. Who does that? Diamond does. I wish they were more than HVAC guys because I know I am not going to find this dedication with the other stuff we need to get done with the house but at least a significant purchase went as it should! We highly recommend them for any and all HVAC services from installs to repairs because honesty matters and runs short in this industry. Great guys, great service, great prices. 3 thumbs up!

Herlinda Wade

Quick response when I called Diamond, as usual! They're helpful, caring and they get the job done! I had a complete HVAC unit replaced and I couldn't be happier! Call Diamond and you will not regret it! Sincerely, Linda

Anne Tseng

I have been a customer of Diamond Air Services since 2021 and have been extremely happy with their service. Howie and Anthony are amazing and their entire staff is top-notch!

I had a brand new HVAC system installed in 2021 and have had my annual maintenance service. They are like a family, always quick to respond and everyone is always professional and pleasant!

I highly recommend Diamond Air Services for HVAC/AC/Heating needs!

Jerry Peralez

The person who came buy to service my heater did a wonderful job, and explained the whole system to us. The gentleman was so polite and Curtious.

Bruce McCarthy

If your looking to have your HVAC serviced, look no further! We called Diamond Air Services and Anthony was able to provide us with excellent knowledge and information. Calling Diamond Air Services was the best decision we ever made!
Anthony was able to meet our request by providing us with a very competitive quote as well as everything requested. Furthermore, the quality of the work was outstanding!
Techs Steve and Dylan came to our home on time, were friendly, professional, detail oriented as well as knowledgeable and took every precaution in keeping our home and furnishings clean during the service.
Steve and Dylan went above and beyond our expectations, for this reason Diamond Air Services is a five star company and we highly recommend them for all your HVAC needs!