Diamond AC and Heating

Diamond AC and Heating operates as a family-owned HVAC contractor based in Phoenix. They have handled air conditioning and heating work across the Valley since 2008 with a focus on keeping homes comfortable in one of the hottest regions around. Summers here push systems to their limits with nonstop heat that rarely lets up at night so homeowners deal with units running hard for months on end. This setup leads to frequent calls for help when cooling fails during peak temperatures and when heating needs kick in during shorter winter stretches.

They take on AC repair and installation jobs along with heating service that includes tune ups replacements and maintenance on standard systems plus duct cleaning and mini split setups. In Phoenix the dry climate combined with constant AC use means filters fill quickly and components break down faster than elsewhere so emergency repairs often happen when a unit quits during a heat wave. Homeowners also book regular service to prevent major failures and add smart controls to manage energy costs while running cooling around the clock through long seasons.

Work gets finished on time without extra delays and repairs last through the demanding weather that tests equipment daily. Pricing comes across fair with clear explanations of costs before anything starts and communication stays direct about what broke and how it gets fixed. Speed counts when temperatures spike and leave a house uncomfortable in hours while solid quality shows in handling both cooling and heating demands from older homes or heavy daily use. DIRT Score 4.38 from 700 reviews on Finds.

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

“⭐⭐⭐⭐⭐ I had a great experience with Ryan and Ryan today. They were both incredibly knowledgeable, professional, and courteous from start to finish. They took the time to thoroughly explain how my HVAC system works, including the zoning setup, and made sure I understood everything without ever making me feel rushed. I really appreciated how patient they were in answering my questions and walking me through the different components of the system. It’s clear they take pride in their work and genuinely want their customers to feel informed and confident. On top of the outstanding service, I felt the visit was an excellent value for the level of expertise and time they invested. They were honest, efficient, and never tried to upsell me on anything I didn’t need. Excellent customer service, ”

“We could not have asked for a better experience. Ryan gave us excellent explanations in easy to understand language for every question we asked. All appointments were timely kept. The installation crew headed up by Christian and Skyler were simply amazing. They arrived early. Worked steadily and were very helpful explaining today’s technology to a couple of technology dinosaurs. When you meet someone, we tend to instantly make a judgment as to whether we trust and rely on them. Your whole team was outstanding we liked them all.”

“I want to give a shout out to Brian Elms going above and beyond with my AC check up. Nobody else has Actually looked through the whole AC unit and made sure we’re Good! this man was super good at his job and very respectable. 5 stars from our household thank you so much, Brian you did an awesome job! Thank you so much!”

“I called this company and they were very helpful to check my A/C Unit. Caleb let me know the coils are very important to keep clean or void the warranty. A couple of previous companies I suspect didn’t do it properly. Shouldn’t have been this dirty. Caleb was efficient, friendly, communicative and thorough. I highly recommend this company !!! Tamara Sandoval”

“A big shout out to Caleb G for providing above and beyond service for my AC unit! He was very knowledgeable, kind and personable. He explained everything he was doing as he did it. He suggested what services were needed without any pressure. I am also impressed that the company called to confirm the date and the technician arrival as promised. I definitely recommend this company!”

“Diamond Air did a great job. I’m so glad that I called them. David. Excellent technician he did exactly what needed to be done to get this air working properly in my house cleaned all the vents tested everything thoroughly. I really do appreciate old-school honesty and work with their word actually means something they stand behind what they do.”

“Diamond A/C did an outstanding job from start to finish. Our 30-year old units needed to be replaced. Each team showed up exactly when expected, worked hard, and delivered excellent workmanship throughout the entire process. The communication and professionalism were top-notch, and the finished work looks superb! It’s clear they take pride in what they do. I highly recommend Diamond A/C to anyone looking for reliable, personable, high-quality service!”

“Diamond AC and heating did an absolute wonderful job during all steps of getting a new ac put in. From the scheduling they communicated extremely well. They let me know when they would arrive and worked with my schedule as well as accommodating to get it done as soon as possible . Michael explained everything well and even came back over the same day to go through financing with me and get measurements so they could get it ordered as soon as possible . They scheduled to have my floor ducts cleaning out several days after the new installation of the ac unit . They ac was installed by Chris and Skyler and they were excellent at explaining everything they had done as well as how things worked and where things were located. I really appreciate everything Diamond AC and heating did for my famil”

“I took advantage of the promotion they’re running for an inspection on your AC system and I’m super glad I did. David was the tech that did the inspection and was super informative and took his time. Not once did I feel like he was rushing through the process. He also informed me of things I should get serviced sooner than later and was not pushy on anything. This great experience with David and everything he did today has lead me to trust them with any future needs.”

“Ryan G serviced my AC on 7/13/26. When he arrived, the unit was blowing out hot air. He found a leak, repaired it, verified the warranty and refilled 3 lbs if coolant at no extra charge. He was very knowledgeable, patient, and pleasant. Thank you!”