“DESERT DIAMOND is the BEST and always our #1 Choice for AC and PLUMBING needs. They understand the importance of offering Wonderful Customer Service. It's always a pleasure referring family and friends to the best company in the Valley. Thank you DESERT DIAMOND.”
“Timothy serviced my AC on 4-11-2025. He was very friendly and explained everything to me. I appreciate how thorough he was. I thought he was very knowledgeable and did a great job for me!
Sue”
“Maison was great in servicing our air conditioner and gas heater. He was very professional and knowledgeable. Invested in a one year service agreement where they come out for summer and winter service.
Since your company also added plumbing to your business, Paul arrived and he was very professional . Emptied our water heater/sediment. My husband and I discused other projects needed and Paul provided us with a quote. I highly recommend this business if you need anyone.”
“OUr technician Daniel did an excellent job of checking all of our equipment to ensure everything was working properly. He was on time and very professional.”
“We had an excellent experience with our HVAC technician, Sam. He did a fantastic job servicing our AC, providing a thorough maintenance visit, and explaining everything clearly. Sam took the time to walk us through the issues we were facing and broke down the costs in a way that was easy to understand—no surprises or hidden fees.
His expertise was evident as he worked efficiently and meticulously, ensuring that everything was in top shape before he left. Not only was he knowledgeable, but he was also incredibly nice, courteous, and professional. He treated our home with care, leaving everything clean and tidy.
It's refreshing to have a technician who is both skilled and customer-focused. We highly recommend Sam for any HVAC needs and will definitely be requesting him for future service!”
“It was good work and with care your AC technician and plumber did excellent job”
“Technician found too many problems. This house is 3 years old and one of the high units. He suggested I need $3000.00 of repairs. Really, is this for real on a 3 year old house?”
“The technician, Sam responded quickly, fixed the HVAC problem by replacing the motor, while explained everything in lay terms to me, and more technical to my son.
Overall he was very knowledgeable, professional, and extremely personable!
By the way, he replaced our AC motor 6 months ago. It took us through the extreme Arizonian summer and continues to work beautifully.”
“Desert Diamond installed my system 5 years ago. Last year my furnace started having intermittent issues heating. They came out and made some adjustments and replaced parts that were most likely the issue. Temps didn't get cold till several months later. The issue persisted. DD came out at no additional charge and worked diligently until the issue was solved. It's great to know they not only do an amazing job at installation but they take care of their customers after the fact. This is why I continue to recommend them to anyone looking for a new system or those needing repair.”