Best Heating Repair And Installation in Phoenix AZ

We were in crisis being a week without Hot water going places to clean up boiling water for dishes n such. I got a call from one of your employees checking in on us and we still had no hot water Miguel then made some calls n was here late on Wednesday befr Thanksgiving he finished installing a waterheater and saved our holiday forever grateful for him God bless him you truly have a great thoughtful n caring employee forever grateful thank you Miguel ty ?

Had both a plumbing and HVAC specialist perform maintenance on my property. Boy, oh boy was their service excellent! Technicians took their time, were thorough in both their inspection AND in discussing the repairs with me. I will most definitely use them in the future. Thank you!!!

He went above and beyond my expectations. Gave complete instruction as to what needed to be done to repair and replace our electical.
Cleaned up Everything and left our home in perfect condition. One awesome technician. Thank you so much.

Excellent service and value. It was easy to schedule an appointment online and our technician, Ian was prompt and professional and answered all of my questions. He did a thorough check on my A/C units and made sure I understood the rationale before he changed one of the parts on my 8 year old unit. Also, he was neat and tidy and I appreciate his cleaning up after he completed the job.

I would highly recommend!! North Valley Mechanical was great from their response to my issue to the repairs. The repairman was amazing!
Thank you North Valley I will certainly recommend!!!!!

A copy of our letter to Desert Diamond:

Desert Diamond Mechanical,

My family & I wanted to take a moment to thank you for your all-around, exceptional customer service when it came to replacing our 30-year-old AC unit. Particularly, we’d like to commend Ernesto, who assisted us from the very beginning to the final inspection.

When Ernesto came to our home for the initial consultation, he exhibited the utmost professionalism in evaluating our home comfort needs, and in discussing his suggestions for replacement units. He treated us (and our home) respectfully, and answered all of our questions in a direct, honest manner. When it came time to discuss pricing, Ernesto provided a few quotes for us to consider. At no time did we ever feel like he was putting us through a sales pitch. We never felt one ounce of pressure from Ernesto, and we truly appreciate his way of conducting business. It made all the difference in our decision to go with Desert Diamond.

Prior to meeting with Ernesto, we received a quote from another large, heating/cooling company. There was a world of difference in how their sales representative treated us. Unlike Ernesto, their representative put us through a series of obvious sales pitches, meant to pressure us (through guilt) into making a decision at that moment. Ernesto, on the other hand, understood that my wife and I needed time to consider our options, and left our home without ever pressuring us for the sale, or trying to manipulate us through sales techniques.

We’d also like to acknowledge the installers, Ben and Eric, who exhibited the same, excellent customer service as Ernesto. They both treated us, and our home, with respect and did a thorough, clean, professional job on the installation. Ben was very affable, and more than willing to answer all the questions a new AC owner would have.

Overall, we are very pleased with our experience, and we would highly recommend Desert Diamond to others.

Thank you!

Mike is great. Very kind and informative. I will ask for Mike anytime my unit needs attention. Could you please send me a recite. Thank you.

(Translated by Google) Excellent company with a lot of work, but they always make a space when you call them to check your ac, the technician Moses very kind and professional in his work, I fix my ac at a good price I recommend them 100% .. And the best thing is a bilingual company..
Thank you Promise Heating & Air for your services

(Original)
Excelente compañia con mucho trabajo, pero siempre hacen un espacio cuando los llamas para q revisen tu ac, el tecnico Moses muy amable y profesional en su trabajar, arreglo mi ac a un buen precio los recomiendo al 100% .. Y lo mejor que es una compañia bilingual..
Gracias Promise Heating & Air por sus servicios

Over the weekend we had lost hot water, so we contacted Goettl and they were able to come out within 24 hours. The tech, John Parker, was incredibly helpful and made sure that we were taken care of. Due to an installation error, we were told the repair would not be covered under our warranty. He went out of his way to call his supervisor to explain the situation and was able to get the repair done free of charge. While the installation error was frustrating, he made the best out of the situation.

Technicians were on time, I was advised via text of their arrival time and their live location. They were very professional, they made sure to wear protection to walk on the carpet and cleaned up after themselves. Very knowledgeable too.

Superior in every way. Meticulous project planning, high quality workmanship, and great post job follow through. Highly recommended.

Chase the technician has been around 3 different homes that we owned and has been out even on a holiday he is so essential to us!!!

I called Sun Devil because our house never got below 81 degrees on hot days, and was often warmer than that. Gerardo came out the same day, discovered that our air conditioner was too small for the space and the air handler was smaller still. He gave us a great deal on a new a/c and handler, and within 24 hours his crew were there to install it. Alex and Roy were so polite and they did an amazing job installing and cleaning up. Before they even left, the house was cooler than it's ever been and I felt air moving in places where the old unit never reached. It was exactly as Gerardo said it would be, and I'm so thankful I found them!

Replaced 20 year old 5 ton unit. Was worried about potential roof damage and length of installation. They showed up on time, finished in a day and not a mark on the roof! Could not ask for more.

Professional, courteous and were able to find time for me the same day. Thank you guys!

If I could give no stars I would. This company is horrible. Worst Customer Service. I could not believe the response I got or the way I was treated. Absolutely no communication or time frame.
We got a new A/C unit from them in 2011. It has a 10 year warranty on all parts. Yesterday evening the A/C went out, called them at 7 am this morning to have someone come out. It is now 12:30 on and no one has responded, called, or shown up. I just called them back to figure out what's going on, and the guy that answered the phone couldn't answer my question. He said he would send another message to the on call guy, and that I should get a call back in 15 minutes. I explained again as I did in the first call, we have children and animals in the house and we need to know if someone is coming. All he could tell me was to wait 15 minutes and see if the on call guy calls me, if not I could call back or he suggested I could call another company to come out. I told him again that it is under warranty and asked how that would work. He just told me to see what happens in 15 minutes.

I had an 11 year old leaky rusted AC unit replaced with these guys and the process was quick and smooth the whole way. The initial tech Jaz did a thorough job in finding the issues and took the time to show and explain the photos he took of our attic. Shaun came the following morning and gave me the run down on what options were available for our home. He answered every question I had and was nice and professional. Once we agreed on an option the install techs arrived within a couple of days. Eric and Ryan spent the entire day (10-12 hrs) dismantling and taking out the old unit and replacing everything. I was impressed by their ability, knowledge, professionalism, and cleanliness. Once they left it was like nothing changed except that our house is cold again! Highly recommend Day & Night, please continue the good work!

My A/C broke and it needed to be replaced I called King mechanical the owner came to my house in 30 minutes he gave me an amazing deal on a new A/C unit. The installers came in record time and installed the new A/C unit. This is a wonderful company I am extremely satisfied with there work. Friendly professional and reasonable prices. I would highly recommend this company.

Overall phenomenal service form these guys they were on time and professional and incredible service.

8+ years I've been a loyal customer, I have never had anything but thorough and complete service than that which was completed by James Mattingly, and his team. I would highly recommend this company to perform service in the future because from customer service, to on the job, they always do a thorough job. They are dedicated to hiring qualified, professional, and courteous technicians and always going the extra mile. They are the only company my family will ever use and the only company I would ever recommend.