Diamond H2O

Solving Water Problems Since 1932

N1022 QUALITY DR, GREENVILLE, Wisconsin, 54942


Diamond H2O has been manufacturing, installing and servicing the Northeast Wisconsin for nearly 90 years. We are experts in water treatment and have the resources to support you in all your water quality needs. Products include: Water Softeners, Reverse Osmosis Systems, Iron Filtration, Odor Reduction Systems, Chemicals and Water Softener Salt. Services include: WI State Certified Water Testing, Treatment Equipment Service, Salt Delivery, Installation of New Equipment and New Application Design. Though the products and services are great; what separates Diamond H2O from others is our people. We have 5 DSPS licensed plumbers, 5 Water Quality Association Certified Water Specialists, 3 DNR Liscensed Pump installers and 2 chemists. Everyone of us are here to improve our customers way of life by providing clean, safe, water.

MON 08:00am - 05:00pm
TUE 08:00am - 05:00pm
WED 08:00am - 05:00pm
THU 08:00am - 05:00pm
FRI 08:00am - 05:00pm
Events and Information

During COVID-19 we are offering curbside pick up for Salt, Filters, Chemicals and Parts. Call 920-757-5440 to place your order.

Special Offer

Order 12 Bags of water softener salt at standard picked-up price and receive Free delivery to your Garage.

Delivery date and time subject to Diamond H2O's availability and schedule.

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