Arizona's Choice For Premium Home Water Since 1986

• FREE In Home Consultation

• Five Star Customer Service

• Quality You Can Taste

Not sure if you need water filtration? Let us help you determine your water quality!

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One of our water specialists will contact you when you’re ready!

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Arizona's #1 Products

Water Softeners

Water Filters

Water Heaters

General Plumbing

Why Choose Poseidon Home Water?

Arizona water ranks among the dirtiest and hardest in the United States. Poseidon is a family owned business that is locally operated by Native Arizonians and only provides commercially rated products to survive in the harsh Arizona climate. We know exactly what you need and have all of the tools, products, and knowledge to give you the best service. Having served over 60,000 clients in the Valley since 1986, Poseidon has seen everything. We're happy to share with you what our products can do for your home and lifestyle.

  • Save time and money with top rated products, installation, and customer service.

  • Save thousands over local competition.

  • Save money and the environment by eliminating plastic single use water bottles and never have to buy bottled water again.

R.L. N.
R.L. N.
Pulled my dead fridge from it's cubby and found water leaking. Drywall had disintegrated. Poseidon was available right away! He was clean and knowledgeable and he's an experienced tradesman. Very professional. He got my new valve installed quickly and neatly. He double checked his work before he left. I couldn't be more pleased! Their price was reasonable as well. I'm a contractor and I've seen the good ones and the bad ones. Poseidon is one of the exceptional ones!
Bob C.
Bob C.
The most honest and experienced contractor we have ever hired. Poseidon installed our whole home water system 2 weeks ago and it is amazing. Tap water we can actually drink! I don’t think I’ve ever called back a contractor to tell him how satisfied we are but I was compelled to do it. Don’t hesitate with Poseidon you will not be disappointed. ​
Patricia A.
Patricia A.
We were very pleased with the work that Poseidon did as he is, without a doubt, an expert in the area of water softeners. We interviewed a number of other companies before we hired Poseidon. Instead of focusing on the "hard sell" Chad listened to what we needed and recommended an appropriate solution. The job was done on time and without problems. We would definitely call him again for our plumbing needs.
Joyce L.
Joyce L.
Great company! Excellent service! Good, fair price! I have been a Realtor in WA for over 30 years. I have worked with a number of people in different industries. It's great when you find a true professional. I would highly recommend them to anyone. Whenever we need a plumber we will hire Poseidon.
Jeff F.
Jeff F.
Poseidon is fantastic, they are knowledgeable and have been in the business for a long time here in Arizona which is helpful because they understand more about AZ water and plumbing scenarios. Their pricing is far more reasonable than others and they don’t try to rip you off like the big name companies. I have referred them to neighbors and friends who all have been very satisfied with not only their work but also the personality. I would definitely recommend Poseidon and their services.
Ray R.
Ray R.
About 5 years ago Poseidon installed a whole house filtration system on our house. He was very professional & explained everything in detail to our satisfaction. About 6 months ago we remodeled the bathrooms in our house. After about a month we noticed a dark residue on some of our “ polished nickel “ hardware. We talked to the plumbing supple company who provided our fixtures & they stated they were sure the problem was our water and asked us to bring in a sample to test. When they got the the results they told us that our sample was the cleanest sample they had ever tested. It just shows the quality of the product & installation of the unit. I recommend Poseidon to everyone I know.
Ruth O.
Ruth O.
Poseidon replaced my hot water heater and soft water softener. They were very professional and knowledgeable and explained the products they recommended for my needs. They clearly love the plumbing business and I like the fact that the business is generational, family owned, and operated.

Services Offered

  • General Plumbing Service
  • Water Softener System Service & Installation
  • Water Treatment & Purification Installation
  • Water Treatment & Purification Service
  • Instant Hot Water
  • Water Heater trouble shooting and repair
  • Water Heater Replacement
  • Water Filter Replacement Services
  • Water Heater Flush
  • Alkaline Water System
  • Reverse Osmosis System

Quick Facts

Hours Of Operation:

  • Monday-Saturday:
    7:00 AM – 7:00 PM
  • Sunday:
    11:00 AM – 5:00 PM
  • 2 year Labor Guarantee on all installations
  • Water Treatment & Purification Service
  • FREE Estimates
  • All Major Credit Cards Accepted
  • Finance Options Available

Service Area

  • Phoenix
  • Glendale
  • Peoria
  • Sun City
  • Surprise
  • Sun City West
  • Scottsdale
  • Cave Creek
  • El Mirage
  • Prescott and Surrounding Areas
  • Youngtown
  • Carefree
  • Avondale
  • And Many More


  • Serving Arizona Since 1986
  • Arizona State License AZROC#236540
  • Residential & Commercial Licensed Bonded & Insured

Not Sure If Water Treatment Is Right For You?

Contact us NOW To Get your FREE Water test

Our clients love how soft their hair and skin feel after bathing. They also love how easy it is for them to clean their bathrooms and kitchens with soft water. Poseidon offers many options to choose from including whole home filtration with softening, water heaters, and instant hot water.

Enjoy PURE drinking water with a system that removes up to 99% of all the contaminants found in tap water. Enjoy standard RO, or upgrade to an Alkaline pH booster to increase flavor and health benefits

Whether you are looking for a standard gas or electric tank or a new state of the art Tank-less water heater, Poseidon has the water heating solution for you. Installations are second to none and include everything you need.

Top rated service from a fifth generation Master Plumber. From toilet repair to whole home re pipes, Poseidon is the most qualified company to service your home.

Use Less Of:

  • 2/3 Less Soap
  • 1/2 of the Dish Washing Liquid
  • 1/2 of the Detergent
  • No Lotion’s
  • No Creams

Never Use Again:

  • Tilex
  • Toilet Bowl Cleaner
  • Soft Scrub
  • C.L.R.
  • Lime Away

Thank you for contacting Poseidon! A representative will contact you shortly to go over products and services and to confirm your free consultation.