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About
Our philosophy is simple. We are committed to providing our customers with the best possible solution for their whole house water filtration and drinking water needs.
We have been in business since 2005. To this day, we are passionate about providing great customer service as well as offering superior filtration and water treatment. We offer products for residential and commercial customers. We provide service in the Phoenix metro and surrounding areas. We also have replacement parts for reverse osmosis systems, water softeners, whole house filtration, water heaters, garbage disposals and plumbing repairs.
Overview
Serves Phoenix, AZ
Background checked
License verified
5 employees
21 years in business
Business hours
SunClosedMon8:00 am - 4:00 pm
Payment methods
This pro accepts payments via Apple Pay, Cash, Check, Credit card, Google Pay, PayPal, and Zelle.
This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.
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Read reviews that mention:
J H.
1 month ago
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From Google
Rex came to diagnose our water softener problem. Checked it out, gave me a quote and list of parts needed. Gave him the ok and we had a great conversation as he fixed it. He also recommended different water pellets and I appreciate that info. Nice job.
Desert Mountain Water LLC's reply
Thanks, J! Rex is glad he could diagnose the softener and give you honest advice on salt. Reach out any time you have questions.
Cheryl S.
Aug 29, 2026
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From Google
Rex was my technician. Coming from California i was unfamiliar with water softeners and RO systems. Rex gave me a good review of what I currently have and what he recommended. Looking forward to working with him again.
Desert Mountain Water LLC's reply
Welcome to Arizona, Cheryl! Rex is happy to help with your softener and RO any time. Thanks for the kind review!
Eve G.
Aug 19, 2026
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From Google
Desert Mountain did a great job installing our new watersystem. The entire process from initial inquiry to installation was seamless. We are also happy to know that they provide maintenance services which we will use. We highly recommend Desert Mountain.
Desert Mountain Water LLC's reply
Thank you, Eve! We're glad the installation and the whole process went smoothly. We appreciate your review!
Audrey C.
Jul 22, 2026
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From Google
Rex was prompt and very knowledgeable. He was great at explaining everything to me and left me with good instructions and helpful tips on maintaining.Thank you for helping me avoid a bigger water issue.
Desert Mountain Water LLC's reply
Thank you, Audrey! Catching small issues early helps avoid bigger ones. We appreciate the kind words!
German C.
Jul 14, 2026
•
From Google
I rarely write reviews, but this one is well deserved.Before choosing Desert Mountain Water, I read through a lot of the Google reviews, and one name kept coming up over and over: Rex. Every review about him was outstanding. Today, I had my reverse osmosis system and water softener installed, and sure enoughRex was my installer.I can honestly say the reviews were right. Rex is incredibly knowledgeable about reverse osmosis systems, water softeners, and water heaters. He didnt just install the equipmenthe took the time to explain how everything works and, more importantly, why it works that way. Since I was new to water softener systems, he shared practical maintenance tips to help extend the life of the equipment and explained the differences between salt crystals and salt pellets so I could make the best choice.What impressed me most was that I never felt like I was being sold something. I genuinely felt that Rexand Desert Mountain Water as a companycare about educating their customers and doing whats right, not just making a sale.During the installation, Rex also inspected my water heater and let me know its nearing the end of its life. Because of the professionalism, honesty, and service I experienced today, Ill definitely be purchasing my replacementwater heater from Desert Mountain Water when the time comes.Thank you, Rex, for the exceptional service. Its hard to find people who take this much pride in their work, and it definitely doesnt go unnoticed.
Desert Mountain Water LLC's reply
German, we truly appreciate you taking the time to share this. Rex is one of a kind, and we’re thrilled to hear he made your installation experience exceptional. We’re glad his guidance helped you feel confident with your new system, and we’re grateful for your trust in us moving forward. Thank you for being part of the Desert Mountain Water family!
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
Every quote is clear and upfront before any work starts — no hidden fees or surprise add-ons. Price depends on the system type and size and on your home's plumbing, and we recommend the right fit for your water, not the most expensive option. Financing is available, and we run a monthly special on our website. We accept cash, check, credit card, PayPal, and Zelle.
What is your typical process for working with a new customer?
We start with a quick call or message to learn about your home, your water concerns, and any equipment you already have. Then a licensed technician visits to look at your water and plumbing, explains your options in plain language, and gives you an upfront price. Once you choose, we schedule the install, walk you through the system when we're done, and offer maintenance plans to keep it running long-term.
What education and/or training do you have that relates to your work?
We hold an active Arizona Registrar of Contractors license (ROC #355261, Class CR-54 Water Conditioning Equipment) and have been Water Quality Association members since 2021. Our technicians have over 30 years of combined experience in water treatment and plumbing, and we're licensed, bonded, and insured.