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The 5 Best Water Treatment Services in Phoenix to Say Goodbye to Hard Water
Living in the Valley means dealing with tap water packed with heavy minerals, chlorine, and desert silt. Because the region relies on mineral-rich rivers, you’ll face hard water that ruins your pipes, stains fixtures, and destroys expensive appliances.
We’re here to help you deal with that. We looked for the best water treatment services in Phoenix to upgrade your home or business.
Let’s protect your pipes with options from water softeners to whole-home reverse osmosis systems.
How much does water treatment cost in Phoenix?
Setting up a complete water treatment system in Phoenix typically runs between $200 and $4,000, depending on your plumbing loop and filtration needs.
| Service Type | Typical Cost Range | Ongoing Maintenance |
| Salt-Based or Salt-Free Softener | $600 – $4,000 (plus $700 – $1,800 without a loop) | $5 – $20 / month for salt |
| Under-Sink Reverse Osmosis (RO) | $200 – $800 | $40 – $100 / year for filter replacements |
| Whole-Home Reverse Osmosis System | $1,000 – $4,000+ | $100 – $250 / year for membranes and filters |
| Full System Tune-Up and Lab Testing | $100 – $300 | As needed |
1. Aqua Science
Website:https://aquascienceaz.com/phoenix/
Address: 2620 E. Rose Garden Lane, Suite 1
Contact: 480-454-3700 / [email protected]
Hours: Monday-Friday, 8:00 AM – 5:00 PM
Aqua Science uses a patented Vortech tank plate that extends resin life and boosts mineral-removal power. This durable crosslink resin boosts system efficiency, which is one of the reasons we chose them.
Their USA-built tanks create a cyclonic swirl during regeneration, which helps lower your salt and water waste. Their specialized carbon filters even strip out harsh chlorine.
Honestly, getting whole-home water treatment from them is straightforward because their technicians understand regional plumbing challenges. They tailor each setup to remove volatile organic compounds (VOCs) and scale across the Valley.
Just keep in mind that their North Phoenix shop sits far from the central corridor, so same-day appointments in southern neighborhoods can take extra time.
Customer Reviews
Highly recommend
Aqua Science serviced our osmosis and soft water systems the other day (9/25/24). The agent was very efficient and finished his service very quickly and professionally. We appreciated his dispatch and skill in completing our Aqua Science service needs.
We highly recommend Aqua Science for their expertise in providing and maintaining their water filtration and treatment equipment. Thank you.
– Stan & Betty Suchocki
- Greg Odean | Google Review
I’d definitely use them again
Aqua Science came out to inspect our water softener. Our family had always lived in places that did not have hard water, so water softeners were new to us. Aqua Science checked out our water softener and made some adjustments to reflect the number of people living in the house. They then spent a good amount of time explaining the differences (and costs) of various water treatment alternatives. Great communication and very informative. I’d definitely use them again.
- Bob Wittcoff | Google Review
2. Complete Water Systems
Website:https://www.a2zwatersystems.com/
Address: 1725 W Williams Dr Suite 23
Contact: 602-396-5566
Hours: Monday-Friday, 8:00 AM – 5:00 PM
Complete Water Systems is a family-owned company that brings over 25 years of local plumbing experience.
They deal with heavy scale buildup by providing custom filtration units with certified parts. Their salt-free conditioners use Nucleation Assisted Crystallization (NAC) to neutralize minerals before they stick to your pipes.
If you manage rental housing alongside valley resorts, their commercial systems have got you covered. Their custom water treatment setups strip out dangerous per- and polyfluoroalkyl substances (PFAS) and heavy metals.
Another perk is that they offer flexible financing plans stretching from three to 60 months to keep initial costs manageable.
Unfortunately, they don’t service certain zip codes, including Ahwatukee Foothills Village, Maryvale, or Alhambra.
Customer Reviews
Highly recommend
Dan was outstanding! He was punctual, professional, and extremely knowledgeable when it comes to water treatment; making sure our family has the safest, highest quality, and best tasting water. Dan offered the best service options for us that no only met, but exceeded our expectations. Highly recommend!
- Katon Kras | Google Review
Excellent job
The water tech David, did an excellent job answering any questions I asked of him during the annual inspection.
I would highly recommend David and Complete Wayer Systems for all your home water treatment needs!
- Paul Divona | Google Review
3. Culligan of Phoenix
Website:https://www.culliganwater.com/
Address: 5410 South 28th Street
Contact: 602-264-3111
Hours: Monday-Friday, 8:00 AM – 4:30 PM
Culligan of Phoenix has been a staple for over 85 years of experience, making them a familiar choice for homeowners tackling extreme desert hardness.
Their specialists start with a free on-site water consultation to check exact contaminant levels in your home. They clearly map out chlorine and mineral counts for detailed reporting, ensuring your water treatment system matches your home’s exact needs.
Their offerings are vast. Their crew handles reverse osmosis and softening setups quickly across the metro area.
To top it off, they back their softening and filtration gear with a 30-day money-back guarantee.
On the downside, they operate as a multinational brand, which means you deal with standardized product packages rather than fully customized boutique builds.
Customer Reviews
Longtime customer
I have been using Culligan for RO and water softener since I moved here in 2017. Their customer service and products are excellent, which gives me a worry free and reliable experience every time. Great service people and contractors are hard to come by in Phoenix. You can count on Culligan!
- Christine Harper | Google Review
Worth the money
I love my Culligan RO system. The Culligan smart Reverse Osmosis System is really cool and works well. Water tastes great, digital display on the faucet that tells you your water quality and filter life. The Culligan App for your smart phone tells you how much water you drink and other things. Overall well worth the money.
My RO installer from Culligan named Stewart, was professional, friendly, and went above and beyond to take care of me! Thanks Stewart!
- SGT OWNED | Google Review
4. Perfect Water Technologies, Inc.
Website:https://www.theperfectwater.com/
Address: 21575 N 11th Pl Suite 150
Contact: 877-693-7873
Hours: Monday-Friday, 9:00 AM – 5:00 PM
Perfect Water Technologies, Inc. is an innovative Valley manufacturer purifying drinking water at the molecular level. They produce modular systems, including a 9-stage reverse osmosis unit designed to eliminate stubborn minerals and contaminants.
Every system uses NSF-certified parts to ensure top-tier safety and clean taste. This system makes modern water treatment simple for health-conscious families who want pristine drinking water.
Another perk of their modular system is the simple changing of worn filters, avoiding the messy housing leaks common in older setups.
They even provide mail-in laboratory testing kits that screen for tricky issues like agricultural pesticides and iron bacteria.
However, you should check their warranty terms carefully, since their policy excludes coverage for damage caused by severe natural weather events.
Customer Reviews
Perfect for our needs
Amazing customer service when we had a question about a replacement part. I could not find the original purchase information but they honored our need with warranty and are taking care of our needs immediately. BTW – also love that they designed a filter system to keep pressure on a well system. It’s perfect for our needs.
- Christin Bregman | Google Review
Absolute best
The Perfect Water is the best for Whole Home water treatment. I have the Home Master systems both the Reverse Osmosis and 2Stage Whole House Water Treatment System. But the support that you get from Will and his team is the absolute best always available to help….Thanks again
- Michael Jackson | Google Review
5. Desert Mountain Water LLC
Website:https://desertmountainwater.com/
Address: 3301 E Corona Ave
Contact: 602-774-0981
Hours: Monday-Thursday, 8:00 AM – 4:30 PM | Friday, 8:00 AM – 4:00 PM
Desert Mountain Water LLC is a local shop that builds American-made systems that deliver an efficient 1:1 pure water-to-wastewater ratio.
Standard reverse osmosis units dump several gallons down the drain for every clean gallon produced, making this setup a huge win for conservation. Their water treatment hardware protects home plumbing while saving water every month.
Their premium softeners pack 10% crosslinked resin for greater durability. Plus, they build compact, portable softeners with 8,000 grains of resin for recreational vehicles.
What’s more, they carry a 10-year warranty on premium softening systems, giving you long-term peace of mind on your investment.
Just know that you’ll have to call ahead to discuss system options. Their South Phoenix location operates as a dispatch warehouse rather than a public retail showroom.
Customer Reviews
Very nice and professional
Rex from Desert Mountain Water is a great guy. He has been out ever year for the past 6 years to maintain our water softener and our Reverse Osmosis filter change. He is friendly, always shows up on time, even calls when he is on his way. Does a great job at a good price. The entire staff at Desert Mountain are very nice and professional . Highly recommend them.
- Cyndy | Google Review
Recommended
We have used Desert Mountain Water to maintain our RO system, as well as our Whole Home water softening system for the last two years. Our Tech, Rex is super knowledgeable, friendly, and helpful. They do a great job of scheduling your annual service so we have one less thing to try to keep up with on our schedule. Our water always feels, and tastes great. I wholeheartedly recommend Desert Mountain Water for all of your water needs!
- Chad Layman | Google Review
