Tankless Water Heaters

Tankless Water Heaters

Poseidon Tankless Heater

Navien tankless heaters are commercial rated united designed to withstand Arizona's climate and water quality.

What Do We Offer?

  • On Demand Hot Water
  • Replacement of the water heater, water supply lines, and emergency shut off valve are Included.
  • Disposal of your old unit.
  • 6 year tank and parts warranty is included with standard water heaters.
  • 10 year warranty is included on heat pumps.
  • 2 year labor guarantee on all labor.



Look At Some Of Our Customer Favorites!

Redox Water Softeners

Whole Home Water Softeners that remove chemicals AND Chlorine

Alkaline Water

6 Stage R.O. System that removes chemicals AND adds minerals

Why Poseidon?

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 homes in the Valley since 1986, Poseidon has seen everything. Our goal is to provide comfortable and safe service to homes all over the valley. Give your local Phoenix Water Specialist a call today!

Poseidon Family Picture

Family Owned & Operated

Poseidon is a family owned business that is locally operated by a 5th generation plumber and only provides commercially rated products to survive in the harsh Arizona climate.

What Our Customers Have To Say

Sherry J.

“I would recommend POSEIDON PLUMBING to everyone. I am very good pleased with the service I received.”

Bob C.

“The most honest and experienced contractor we have ever hired.”

Angela A.

“This company was fast, efficient, courteous and knowledgeable. Price was very reasonable and install was quick.”

And We Do More!



Schedule a Service

We’ll give you a call to schedule your service!