Reviews

This profile includes reviews for Diamond AC and Heating's headquarters and its corporate-owned locations. To view all corporate locations, see Find Local Branches.

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  Diamond AC and Heating

  20801 N 19th Ave Ste 1 Phoenix, AZ 85027-3554

  
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  Diamond AC and Heating

  1 W Deer Valley Rd Ste 104 Phoenix, AZ 85027-2130

  

Review Details

• Review fromKathleen B

  Date: 05/13/2025

  1 star
  A friend contracted to have a new A/C split system A/C installed in her condo on March 19. Diamond installed the condenser in the roof but did not have the correct pancake air handler. On May 5not a typo, May 5she still did not have a properly functioning system so requested Diamond to remove the system and give her a full refund. They did so on May 5. My friend waited 48 days for a working A/C system that didnt materialize. I hope in the future that Diamond makes certain they can do the complete job before accepting it.

• Review fromMary B

  Date: 05/09/2025

  1 star
  They replaced my AC unit, Did not work at first, then they came back several times to repair. Cut a hole in my beautiful hardwood floor 22 x 24 inches without permission. We are snowbirds and were not here, numerous phone calls to ask why, fix the floor, and make a steel grate to cover the hole. they put a white plastic cover over, my husband fell over the plastic and then they put a grate over, but as you look into it, it's a giant hole. we are so disappointed in all that transpired. Have asked the owner to come over and view, he never even returned the phone calls!I would never recommend Diamond Air.......

• Review fromVincent H

  Date: 10/09/2024

  1 star
  Avoid this scam of a company at all costs. Their preventative maintenance program is a headache and a ripoff. Every time they call and come out, they set up an appointment with you and then reschedule it multiple times. They came out and forgot to s**** the panel for the ** back in, so it fell off. My house would not get below (90). For an entire week, my ** was sucking in hot summer air (110). I went up to the roof and found the panel off with a block of ice covering the vents. When I called and complained about it, they sent *** out to look at it, get all the ice off the vent, and clean it. Then all they said was "sorry" and left me with a $450 electric bill that month. The next time they came out, they told me there was a problem with my **, but I was so fed up with them that I told them to leave because I knew it was caused by them, and they were just trying to charge me for their mistake. The most recent incident was a call asking for another appointment. They didn't even show up on the day they were supposed to. No call, nothing. The next day,they called me saying they had tried to call me, but ****** thought they had dialed the wrong number. Then ****** told me my appointment wasn't actually due for another two months, which just shows how unprofessional this scam of a company is. ****** said they'd have their manager ***** **** me and speak to me, but I have yet to hear from them. When I asked for a refund on the remaining balance of my plan, which was still active until 2027, **** denied my request, stating that she is unable to issue a refund if there is no balance left. This is clearly untrue. I sent an email to the owner, ****** Diamond, which was clearly ignored. This company is not to be trusted.

• Review fromKristine N

  Date: 07/20/2023

  5 stars
  *** is the man! He came out in a timely manner & fixed our AC unit in this desperate ** summer heat. He is extremely knowledgeable & helpful. Thank you ***!!

• Review fromDonna M

  Date: 07/04/2023

  5 stars
  Rescued us when our AC stopped working on a holiday with temperatures in the 115. I would recommend this company to everyone. Our tech was *** - Kind friendly thoughtful fast reasonable. Kept ** informed through the entire repair. Thank you ***

• Review fromRenee N

  Date: 06/16/2023

  5 stars
  Customer focused, very informative and great service! I highly recommend

• Review fromMarie G

  Date: 06/15/2023

  5 stars
  ********* was very professional. He arrived within the time he said he would be here. He explained what he saw and what he did in the **** unit. He explained other services the company offers. He was very courteous and pleasant to work with.

• Review fromCynthia G

  Date: 06/08/2023

  5 stars
  ********* was very informative and educational. Great service and looking forward working with him the future.

• Review fromJeffery G

  Date: 05/31/2023

  5 stars
  *********** was very professional and did a great job on our HVAC system.

• Review fromMary B

  Date: 05/30/2023

  5 stars
  ********* was very professional and explained everything to me in detail to my understanding. I was very satisfied.