I decided to hire Desert Diamond for my to fix my AC,/Heat, BIG. Mistake. When the technician came to my house I made it very clear cost was no object and I wanted everything fixed right the first time. The technician went through everything and assured me everything was working properly and it was. The next day my unit was not working and I called Desert Diamond to have them come back out being told their work was under warranty but I was charged another trip charge and received another bill because I was told the problem was unrelated. Fast forward another month and my AC is not working properly. I will never use this company and recommend anyone else who reads this so the same. read more

Our air conditioner went out this morning, called an emergency air repair company and two and a half hours later hadn't even gotten a return call. Called Desert Diamond and they had someone to my house and my air fixed in less than 2 hours. The tech they sent out, Ryan, was very professional and quick. Definitely earned a customer for life. read more

Desert diamond was the fifth company I called and the first one that had availability same day. JD arrived within 30 minutes & got right to work. He quickly diagnosed the problem & had us up and cooling within the hour. We would highly recommend Desert Diamond for their quick response & great service! read more

DDM. I can't complain. The staff is courteous, professional and knowledgeable. I got a brand new unit installed and just had my one month follow up. All aces. Steve Schilling was the reason I choose DDM. My one month service was done by Nixa. Very thorough and high attention to detail. Great Experience all around! read more

Cody was extremely helpful from the phone call when we had to cancel the appointment to him showing up hours later to save the day. What I appreciated was he offered his services letting me know I could reach him if I do find that I need services as I did because my AC in an apartment broke. I explained Cody the situation and he was extremely helpful. Cody was very knowledgable and explained everything to me in a way I understood read more

I will give them an update to 3 stars. After I posted this, we got a call and the agreed to refund the $170. That took a bit of the sting off the total for this repair. read more

Ivan just serviced our Trane unit, and we couldn't be happier. Ivan is a true professional in his field, and serviced our unit perfectly. read more

The information I received was good and informative.

Andrew was on time and very professional. He explained everything that is to be done in plain terms. Found some problems that need to be corrected. Laid out three systems with prices, and what rebates are included. Excellent company representative. read more

Did a great job again this year. Told me what needs to be watched. And what it looks like down the road. No complaints highly recommend them. Dale read more

Very Honest, Professional, And Cody didn't mind me micromanaging/looking over his shoulder during the whole process. Cody educated me on how things work and how to measure readings and I learned very much from him. We used them for an install, but this time it was for a tuneup/check and we will continue using these guys and we highly recommend their services to friends and family! read more

Service is 5 star!!! Ivan Flores is such a fantastic tech and genuinely nice person! Serviced my mini split system in my garage and even found a potential leak source which may be a warranty item!!! It was my second time using Desert Diamond and I'm so impressed .... And I'm not an easy person to impress ! They have my business for sure !!!! read more

Had new air conditioners installed. The installers were very knowledgeable, professional, and prompt. They did great work.! Appreciate what the do. read more

Needed an AC tune up and cleaning for a home we recently acquired as a rental. Nixa arrived on time and did a great job evaluating, cleaning and reporting back with a couple of simple upgrade recommendations to consider and answered all our questions. Thanks Nixa and Desert Diamond! read more

This is a copy of your invoice. Your price for the capacitors is not on there since your tech wouldn't write it down. I ask for a cleaning nothing more. Your tech went for the upsale right off the bat. Did not service the unit at all. He quoted 453.00 per capacitor plus tax. I have no reason to lie. I get nothing out of that. All I wanted was to get the unit cleaned nothing more. So my review stands. read more

Desert Diamond Air - Copy of invoice - Heating & Air Conditioning/HVAC Near Me - Phoenix, Arizona

Julio and Jordon installed a new hvac unit for me this week. Very professional and polite. They were great and very informative and helpful with my questions during the installation. read more

I was finally one of the unlucky Phoenix residents that had an air conditioning problem in the middle of summer. I always dodged that bullet until this year so I didn't know how much it would temporarily change your life until corrected. Mine crapped out on a Sunday. I called six A/C repair companies. All six said they were available 24/7. Of the six, I received voicemail on three. None of the three have called me back yet, and my initial call was a week ago. Two of the remaining three took my info and said someone would get back to me asap, which again, never received a call back. The last one was Desert Diamond. The person on the phone actually took action by taking my info and telling me the tech would be at my house. Same day visit !!! The tech, Matt was wonderful. He diagnosed the problem correctly, ordered the part, and returned to install it and get the A/C running again by Tuesday. Advise for all consumers out there - when in dire need of help, use Desert Diamond when the chips are down. Matt and team will come through for you !!! Thank you again Matt. read more

I used Desert Diamond's services a few years again on another home for an A/C replacement and was happy with their prompt service. My review is for my most recent experience: My upstairs A/C went out and my tenant decided to call Desert Diamond for a repair. They were pretty prompt to come out (the only reason I gave 2 stars instead of 1) and look at our unit and assessed that a line was blocked, supposedly fixed that and recommended a new A/C. The A/C still wasn't working well after the repair and I just assumed that it was because I needed a new A/C unit ASAP. Their A/C quote prices were quite high, so I decided to get another quote for A/C. I got better quotes elsewhere and decided to go with another highly rated company. Since the other company provides a temp solution until they are able to install, they sent a tech out to find a solution for my tenant. Turns out the tech from Desert Diamond was wrong and there was a completely different issue (valve not working properly) than the one that he supposedly fixed. The tech from the other company had the A/C up and running with my current unit. After this experience, I recommend getting another opinion before being talked into a new A/C from Desert Diamond. read more

Steve from Desert Diamond came out to give us an estimate on replacing our A/C unit. We have had several people come out to quote on this. Steve was the most detailed on his explanation and why we were having issues with temp differences within the home. He provided us with several options and explained the difference and value of each. We were impressed with his presentation. I would highly recommend that when it comes time to get quotes for a new A/C unit that you include these guys as one of the companies giving you a quote. His quote for a 14 seer and 17 seer 2 stage unit were more competitive than the competition. By the way these guys are approved vendor with rebates from APS. Not the $200 you usually hear about but the big rebates going on because of Covid. read more

The owner called and was apologetic and scheduled an appointment to come out and give mea quote on the work I need done. They showed up in a timely manner, very professional and gathered the information for the quote. The owner was apologetic and helpful. read more

Though I hired this company to just tell me what is needed, I would highly recommend them. I am quite familiar with repairs and can do many on my own. I knew I didn't need an entirely new AC system just because no air was coming out. Another company came out and lied to me, telling me I needed a whole new AC system. That was wrong. So I called out two other companies and both said all I needed was a fan blower motor. While I hired another firm to do the work, Desert Diamond made a very good impression on me. Honest tech. Knew his stuff. And did not try to upsell for a big commission. Would highly recommend this company. I intend to use them in the future. read more

Based on all the great reviews, I scheduled "tune ups" for my 2 older Trane units. The tech was on time, polite, and professional. This is not the problem. The problem is the pricing policy they use. Issue 1 - even though I already agreed to pay $89 per unit for the tune ups, the tech, upon finding 2 capacitors near catastrophic failure (80% out of tolerance) quoted me $220 each to replace them. Note that he had taken them off the equipment to measure them, took photos and put them back on! (OEM capacitors are $10 each and the upgraded ones suggested are about $15). Issue 2- refrigerant check found I needed an estimated 2.5 lbs of r-22. The quote for this was $525! This gas is being phased out and is not used in newer machines. BUT it is readily available in amounts as small as 2 lbs. at a local company for $40 per lb. Thousands of machines use this. Shocked to my socks at these prices, I declined the quoted work, and paid the $180 for the tune ups only. I emailed my concerns to Desert Diamond and subsequently spoke with Cody to understand how they could defend what I believe to be outrageous prices and practice. Cody defended this as due to a flat rate policy, overhead, truck roll etc.. which made no sense as the overhead and truck roll should have already been covered by the tune up charge, which was high in itself. I subsequently bought the OEM caps from Amazon and replaced them myself. I had another company do summer tune ups again (I did not tell them about the 1st company work or quotes) and finding I needed only 1lb. of refrigerant charged me $179 for the total 2 unit check and gas. Bottom line..beware. read more

Matt was very efficient . I was happy he came early and called before arriving to let n my e know how far away he was. Thank you Matt

Had a new unit installed yesterday and the unit worked well...woke up this morning and the new unit wasn't cooling. I placed a phone call and within an hour, the service tech Mario arrived and like magic, he got the new unit cooling again. Great company and super AC techs...thanks so much, I'm pleased that I chose the right company to install my new unit. read more

Highly recommend this company for any heating and AC needs. I had my entire system replaced a year ago after getting quotes from 4 different companies, Desert Diamond was who I went with. Today they came out and did my one year check up and once again, I am very pleased with their service. They are very friendly, helpful and on time! read more

Hands downs one of the best service companies I've ever worked with for issues. Our AC has gone twice this summer because it's older and Desert Diamond was able to send a technician the same day. They saved us a few summers ago too. They always answer, are super friendly and helpful, and show up on time. Dakota has been very patient with us and provides excellent service. I don't plan to ever call anyone else for AC issues and will likely use them when it's time to replace the unit. read more

I had my entire HVAC system (2 units) removed and replaced with Trane units. Desert Diamond was honest and up front from the beginning and provided a very competitive/professional quote. Cody gave me the original quote, he was absolutely great, he even took calls when off and kept his promises. The installation crew I couldn't have been happier with. They were neat, clean and professional. The quality of the work was unbelievable, and I am very picky. I absolutely love my new Trane units. Anthony recently came out for my first year inspection/tune up included in the installation, he was very thorough and polite. Today, Mario came to check on a slight rattle and quickly diagnosed and fixed it. Mario was very friendly, courteous and thorough. And lastly, the ladies in the office have always been very polite and have provided the best customer service I've ever experienced. That's very rare to find with an HVAC company. I very highly recommend Desert Diamond for any HVAC services. read more

It's times like this I wish Yelp's review ratings went all the way to 10 because Desert Diamond is definitely deserves it! We are doing construction on my new day spa and my crew informed me on a Sunday that the heater wasn't working... This was a big issue since we needed the plaster on the wall's to dry and it was only 54 degrees in the space. We called Desert Diamond at 8am and our problem was solved before 10am! Tamara was the coordinator we spoke with and her professionalism along with bubbly personality made the whole experience that much better. She was even kind enough to follow-up the next day to see if everything was working great then sent me a email explaining all the details from their visit. I will definitely be recommending Desert Diamond to anyone and everyone who need Heat or Air repairs. read more

Very impressed with professionalism and service. Hayden was awesome. Look forward to a great relationship with this company.

From the salesman to the installers and the final review inspector I found all employees to be knowledgeable and concerned about doing a first rate job. This company stresses high quality and it shows in their work. You won't find a better heating and cooling service read more

Horrible clean up. The buyers of my house had them out to investigate the HVAC. The rep got up in the attic and left his blanket and didn't put anything back. To top it off insulation is now blowing through my vents which has never happened in the 2+ years I've lived here. Would not recommend this company. read more

Excellent and prompt service as usual. Dontre was especially noteworthy today with detailed and cordial service!

I had two heating/cooler units replaced in the summer to find out they did not replace the old cracked thermostat wiring from the old units. The old units were 18 years old. The wiring was cracked all the way down and had tape in some places to hold the casing together. There was no way that wiring cracked in less then six months. I called them to find out why the wiring was not replaced and I was not given a good reason. I was going to have to have to pay more money to have it replaced but when I called other companies and they said it would have been included in their install...which why would it not be? It also cost me less to have another company replace the wiring then it would have with them. Well one unit quit a few days ago to find out it was the bad wiring that caused it. I had used DDM for several years and didn't trust that my unit was being maintained right each time. I even had one of their service techs ask me how long it had been since I had it cleaned b/c it as so dirty and it had been just a few months before. I should have changed years ago but I kept with them. You are trusting the people working for these companies to do a good job and be honest about things. They have many good reviews but that has not been my experience. I hate leaving a bad review but I am so disappointed in the service I received for a big purchase that I feel I need to let people know of my experience and they can make their own decision from the good and bad reviews. The staff are very nice but I paid good money to have a good job done. I also feel they didn't try to make it right and I am the one who had to deal with a problem that should not have happened this soon. Lesson learned...when you suspect problems early on get someone new. You might have to pay a little more but it will save you headaches. read more

I ordered my new AC unit through Steve at Desert Diamond Mechanical, which has been on back order for about a month. My current AC stopped working, the company sent someone right away to fix the issue and they didn't charge me anything. They took care of me, when they had no obligation to. This is a great, stand up company. I highly recommend them! read more

Woke up at 6 on a Sunday morning, house was 61 degrees inside and vents were blowing cold, called DDM around 6:30 and got an actual nice human being. Jeff, the technician was here by 9 as promised and 10:30 all fixed. Did you notice I said Sunday morning? Wow, how would I not appreciate this business? I'm warm. Thanks! read more

I recently had 6 insulation companies come by to give me a quote on their services. This company was by far the worst one out of all. The sales guy was not very happy, spent less than 10 minutes at my house, left my access stairs open, didn't ask any questions and left. This vs. 4 companies where the sales guys spent at least 1 hour each with me asking questions and explaining their services and their quote was the 2and highest of all 6 - not worth it in my opinion. Based on the rep's attitude, how would I know they will even do the job right? I would just recommend that people take their time choosing their service providers carefully before proceeding. read more

Following three repairmen from three companies through a warranty company I finally found jeff who immediately diagnosed the problem. No more warranty only this company for A/C repair read more

No stars here! Tenant called them when A/C failed. They came promptly, presented estimate for $1,200 and high pressure tactic that parts department was closing early. We declined and paid $70 for "diagnostic". Another firm fixed the unit for $375. Only 1 part needed, not 2 & motor as claimed by D.D. Unit still running perfectly 1 month later. Avoid this firm. read more

Worst Experience Ever. After choosing this company based on price median with 4 different companies. Experience went downhill with install!! Didn't get the estimated or quoted service and when I brought it to the ATTN of the manager he basically back peddled as to why the service that was encouraged was not needed. And to add insult to energy I don't believe I've ever received so many apologies from a company that I paid in cash for a service only to get no resolutions. Just continued insults. Complete cluster* and it became apparent that my only resolution was to just let it go for my own sanity. read more

Got a call from one of the associates about a/c. Told them it was the wrong person, take me out of your database and the guy proceeded to get mad. He raised his voice like I was offending him for having the wrong person. Terrible attitude. Not sure why they have this particular person making calls with such a short fuse, needless to say I would not go with diamond. Its understandable others have different experiences but having no contact with this company prior and having some random person get upset for not being the right person deters me very much. read more