808-732-9777 info@watergroup7.com

Who We Are

We are proud to sell, service and maintain professional grade water treatment equipment such a water softeners, water filtration, reverse osmosis and water coolers. Our lead technician is a certified installer of the Water Quality Association, a distinction that ensures you get the best installation possible.

We provide a complimentary water analysis for all our first time customers.

We are available 24/7 for questions or on-call needs. Give us a call today at (808) 732-9777 or click here to contact us.

Water Softener

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.


Water Analysis!
Let us determine the best water treatment solution for your home or business!


(808) 732-9777