Let us test your water and suggest the right water system that fits your needs.

Water quality varies from district to district as well as building to building and home to home.

The first step in determining the correct type of water treatment you need is to test your water to determine its chemical and mineral content. Once we receive the results, we determine the right water system to fit the needs of your home or business. Determining the type of equipment, application and sizing needed for your specific water issue is not a guessing game nor is there a one-size-fits-all set of systems.

We want the water we drink to be free from chemicals and bacteria, our water systems will give you the best water on the island!

Water Treatment

Make sure you are getting the water treatment system that is best for your home or business.

Detailed Analysis

Detailed water analysis is always complimentary for our first-time customers.

Why Choose Water Group 7?

Kama'aina Business

We are a locally owned and operated family run business, here to serve Honolulu, Oahu and the rest of the islands. We are passionate about making sure you have the cleanest and safest water in the State.

Comprehensive Water Testing

We test your water before proposing a solution to your water quality issues, ensuring you are getting a system that is the right fit and the right price for your home or office.

Exclusive Hawaii Distributor

Water Group 7 is the exclusive Hawaii distributor of the Evolve water purification system, the most trusted name in water purification. All of our products are made in the USA.

Water Quality Association Certified

Water Group 7 is a Water Quality Association certified installer having demonstrated a certified level of professional expertise and dedication to high professional standards. Click here for more information on the WQA.

Request A Free Water Analysis


Fill out the form and Water Group 7 will test your water for free and suggest the right filtration system that fits your needs.

Free Water Analysis
Water Quality Concerns
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(808) 732-9777