808-732-9777 info@watergroup7.com

Clearly Better Water

Solving Hawaii’s Residential & Commercial Water Quality Concerns Since 2006.

We Sell And Service

Water Softeners

Water Softeners

Dramatically improve the composition of your water, giving you a silky-smooth texture – day in and day out!

Water Filtration

Water Filters

Improves the overall taste of your water with every glass, fresh, crisp and refreshing!

Water Filtration

Filtered Water Coolers

Enjoy delicious tasting water without the hassle of heavy 5 gallon water bottles!

Free Water Analysis

There is no one size fits all solution to water treatment. The correct solution for your home or business is always custom tailored to fit your unique and specific water quality issues and needs. We provide a FREE, no obligation water analysis for new residential customers. What are you waiting for? Click or call us to start experiencing CLEARLY BETTER WATER.

Why Choose Water Group 7?

There’s science and an art to providing you with the quality water you deserve. In fact, when you break it down, our formula for your household is simple: More efficient water leads to a more efficient home/business.

As an exclusive dealer of the Evolve Brand, we offer a complete line of cutting-edge water treatment systems that deliver clean, high-quality water to your home or business. Evolve® water treatment systems fulfill your families or business water needs with the highest level of innovation, efficiency and versatility.

After all, better science makes brilliant water and that’s CLEARLY BETTER WATER.

Our Process

Water Group 7 Process Infographic

What We Do

Our expertise and best in class equipment provides solutions to problem water ranging from water hardness, water spots/staining, foul taste and odor issues in drinking water. We service the water quality needs of small residential customers to large commercial clients and everything in-between. We sell, service and maintain the following equipment:

  • Water filtration systems
  • Water softeners
  • Reverse osmosis water purification systems
  • Bottle-free water coolers.

Our service area includes the five major Oahu districts and include the cities listed in the box the right:

  • Honolulu
  • The Windward Coast
  • Central Oahu
  • The Leeward Coast
  • North Shore
Ahuimanu Kalaeloa Royal Kunia
Aiea Kaneohe Schofield Barracks
East Honolulu Kaneohe Station Wahiawa
Ewa Beach Kapolei Waialua
Ewa Gentry Ko Olina Waianae
Ewa Villages Laie Waikele
Halawa Maili Waimalu
Haleiwa Makaha Waimanalo
Hauula Makaha Valley Waimanalo Beach
Honolulu Makakilo Waipahu
Hickam Housing Mililani Mauka Waipio
Iroquois Point Mililani Town Waipio Acres
Kaaawa Mokuleia West Loch Estate
Kahaluu Nanakuli Wheeler AFB
Kahuku Ocean Pointe Whitmore Village
Kailua Pearl City

About Water Group 7

We are a locally owned and family operated small business serving the water quality needs of residential customers, commercial clients and government entities since 2006. Improving the quality of your water is our passion and we are committed to only offering best in class equipment. Our recommendations will always be properly sized for your specific water quality needs and concerns.

Our knowledge in this industry ensures that your decision to invest in our equipment, our people and our full line of service will result in CLEARLY BETTER WATER.

About Water Group 7
About Water Group 7

Our Happy Clients Include

Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image
Logo Image


Tracy F.
Having the right water purification system for your home is important. Water Group 7 provides the best system you can have with excellent service.
Hawaii Kai
Dr. Takai
We recently purchased a water cooler (bottle-less) from Water Group 7. The convenience of not having to lift or store large 5 gallon water jugs has been rewarding in itself. It should go without saying that the water is fantastic, and the service has been top notch.
Christopher T.
Professional, friendly and knowledgeable staff. I'm glad I invested in my water system. I can really tell the difference in my water quality now.