Desert Diamond Air & Plumbing

Desert Diamond Air & Plumbing works out of Phoenix, Texas where they take on plumbing jobs for houses in the region. Their trade centers on keeping water systems in good shape for residents who deal with the local conditions every day. The crew handles calls for repairs and maintenance that keep things flowing without constant problems from the heat and dry weather common there. Homeowners rely on them because the team shows up with the right tools and knows how Phoenix soil and temperature swings can shift lines or stress joints over time.

Plumbers from the company clear clogged drains, fix leaking faucets and toilets, replace water heaters, and handle full repipes when older copper or galvanized lines fail. They trace slab leaks that show up as hot spots on floors and install new shutoff valves so a single break does not shut down the whole house. In Phoenix the work often means dealing with hard water buildup that shortens fixture life, so the crew flushes lines and swaps out corroded parts before small drips turn into bigger floor damage. They also run new supply lines during bathroom or kitchen updates and make sure every joint holds pressure on the first test.

Customers keep coming back because the crew finishes jobs fast, charges straight prices without surprise add-ons, and explains what broke in plain terms. Reviews highlight quick arrival on emergency calls, clean work sites, and solid fixes that hold up through the next season. That steady record of handling real problems without extra hassle adds up to strong marks across the board. DIRT Score 4.87 from 2524 reviews on Finds.

DIRT Score = confidence-weighted rating across verified review platforms. How is this calculated? →

“The installation of the new mini-split system in my garage was: high quality, clean, professional and very friendly! No unpleasant surprises at all! I highly recommend this company and we will sign up for their incredible Diamond Service Plan!”

“I had a great experience with Johaan from Desert Diamond Air. He came out to diagnose a low-performing AC unit and was incredibly thorough. He carefully inspected the outdoor condenser and then checked the evaporator coil to accurately pinpoint the issue. Johaan was highly professional throughout the entire visit and provided clear, practical solutions to get the system running efficiently again. He also took the time to answer all of my questions completely. I highly recommend Desert Diamond Air and will definitely ask for Johaan again for future service!”

“I want to take a minute and write about the amazing service and assistance we received today from Daniel Calderon. I called this morning when I noticed the house wasn't cooling (only going to be 114 degrees today). The front office staff was able to schedule a technician for this afternoon. I let them know that I could be available a bit earlier than the scheduled time and they reported Daniel would be aware and would contact me if he could be here earlier. I received a call an hour before the scheduled time letting me know that he was on his way. Once he arrived, he immediately noted the system was not cooling and went onto the roof to identify the issue. He quickly identified that a part had failed and needed to be replaced. He notified me that the part was under warranty and they would ”

“Craig did the inspection and quoted me different AC units. He understood my needs and budget, and provided the best quote between 3 companies for same models. He answered calls and text when I had questions. Brody and Joshua did the install, including a new thermostat and new vent. Fine young, hard working folks. Highly recommend them!!”

“INSTALLATION: 4-22-2026: Shawn and Alex did a great job installing my new DAIKIN AC unit They were professional, patient, respectful of my property and knowledgeable about the unit. They explained how the thermostat works, answered my questions, and made sure the install was perfect before leaving. I do wish they'd worn shoe covers as the estimate guy Craig did. Also, the crane (3rd party vendor) was almost FIVE hours late - not their fault, but this did slow the project's progress. Alex and Shawn, made the most of their time, did all the pre-installation / setup work on my roof while waiting for the crane to arrive. The DAIKIN unit is running quietly & smoothly. Next week another employee will inspect the installation to ensure all was done correctly and the unit is running per spec. NO”

“Desert Diamond replaced two 5-ton AC units for us this week and from start to finish they were straightforward, knowledgeable and efficient. The sales rep Tyler answered all of my questions clearly and took his time explaining his answers. He responded quickly along the way and was a pleasure to work with. The crew on install day were friendly, efficient and did a great job cleaning up after their work. We got four quotes before deciding who to go with and I'm glad we went with them.”

“This company has been great from start to finish. I’ve been using them for a year and I couldn’t be happier with the support I get from them. My system is old and the technician Leo was more than upfront and honest with everything that was wrong and made me feel comfortable with fixing what needed to be fixed. I am so glad that I found these guys because I will be using them as long as I live here!”

“UPDATE: This breakdown is entirely new to me. In the video, your technician explicitly states that the part cost COULD BE LOWERED TO $555 IF we signed up for the PM plan. However, the invoice itself contains no itemized breakdown to support the pricing now being presented. We also asked whether we could source the part ourselves at a lower cost and were told no. We were informed that the only way to receive any discount on the part was by enrolling in your program. While prior PMs may have been scheduled, no technician was on site during the original PM plan. Additionally, the labor hours you’ve provided do not align with reality. I have this on video as well. The technician was on site for a total of 3.5 hours. At no point were we informed that we would be billed for time spent sourcin”

“Our Tech Mike from Desert Diamond Air and Plumbing clean, courteous, quiet, and professional as he performed his PMI on our 3 AC systems. We knew one of the 3 units was struggling and fully expected a hard sale on it needing to be replaced, but were pleasantly surprised with an honest assessment explaining exactly what was going on with 3 different treatment options followed up with an email with almost 40 pictures of everything he checked and repaired during his visit. Truly appreciate the customer service and professionalism Mike and the office provided, so much so that we signed up for a service agreement which is something we never do.”

“I wanted a locally owned HVAC company to do AC service ahead of summer. God knows how hot it can be here in summer. I was pleased to experience the honest service offered by Desert Diamond Air. Dominic arrived as scheduled, did the service checks and kept me informed about my 9 year old system performance discussing improvements with pictures before and after. I was impressed by his honesty. After he had installed a part that did not improve function he showed me that it made no difference and then removed it. I opted to sign up for the service plan. I have no hesitation in recommending Desert Diamond to anyone.”