Welcome to Culligan of Long Island, your water softening, commercial water treatment, & deionization experts in Long Island

Culligan of Long Island proudly offers water treatment solutions for Melville, Deer Park, Islip, Commack, Smithtown, Centereach, Brookhaven, Medford, Holbrook, Coram, Shirley, Manorville, and all of Long Island. We have the equipment and experience necessary to serve all of your water needs including water softening, reverse osmosis drinking water, bottle-free coolers and water filtration systems for both residential and commercial properties.

Drinking Water In Long Island

Drinking water plays a key role in your diet and is essential to maintaining a healthy lifestyle. Make sure you have access to the highest quality and best tasting water available with a Culligan Drinking Water System. No matter what your budget or your needs, Culligan of Long Island has a Drinking Water Solution that is perfect for your household.

For apartment residents, a reverse osmosis drinking water system can provide many benefits and fit right under your sink. We offer larger scale filtration systems for residential buildings. Learn more

Long Island Water Softeners

Does your home or apartment have hard water? Some signs are easy to notice- soap scum on the shower door or lifeless hair. Other signs may be harder to notice brights fading in the washer or the corrosion building on the inside of your pipes.

Hard water wreaks havoc on your home in more ways than you probably thought. Luckily, Culligan of Long Island is dedicated to tackling the toughest hard water that Long Island has to offer.  Call (516) 200-6402.

Water Treatment Testimonials

Your service tech arrived on time and was extremely professional throughout the entire process. After installation, he thoroughly cleaned up his workspace. Job well done!

Roger B.