Water quality impacts not only taste, odor, and the appearance of water, it affects health, dependability of water supply, and the lifetime of your plumbing, fixtures, and appliances. Our custom-engineered filtration systems provide a comprehensive solution to all of these issues. Whether you have blue-green stains in your tubs and sinks, water the color of tea or that smells like rotten eggs, or an invisible problem such as bacterial or pesticide contamination, Island Water Systems will provide you with a system that addresses your unique set of water quality issues and delivers a safe, delicious, and dependable water supply.

When we work with a new client, the first thing we do is test your current water supply. We do not sell a "one size fits all" product; instead we engineer a water filtration system that will meet your needs for both quality and quantity. After we install your system we will routinely maintain and service it without your having to lift a finger. In the event of an emergency, we are available 24 hours a day, 7 days a week.

We use the finest equipment and materials and pay strict attention to quality control. We have the expertise to service your existing equipment, install a new system , or rebuild your present one. Each unit is assembled by hand and our long-lasting units not only cost less but also outperform any other brand. Owner Nick Thorne is involved in every project.

Since 1995, Island Water Systems has been Martha's Vineyard's only full time Water Filtration Company. We specialize in the water analysis, engineering, installation, and ongoing service and maintenance of all types of Water Treatment equipment tailored to the individual needs of our customers, from a simple Under Counter Filtration unit for drinking and cooking to Whole House Filtration Systems that treat every tap in the home. While we also have the capability and know-how to install heavy Industrial Systems, our primary goal is to provide each and every customer and their family with clean, delicious, worry free water.