Transform Your Water with a Reverse Osmosis Drinking Water Filtration System…

And Create Delicious, Healthy Water Free of up to 99% of Common Contaminants Found In Our Local Water.
drinking water

Long Island Clean Water Service, Inc. offers a variety of installed drinking water systems designed to remove contaminants from the water your family drinks. Installed drinking water systems can be tucked away under the kitchen counter or in the basement.

The perfect complement to an EcoWater System water refiner or water softener for the water-conscious family is an EcoWater reverse osmosis drinking water system. Our exclusive line of reverse osmosis water purifier systems are specifically designed to provide clean, clear, better-tasting drinking water by removing more than 95% of dissolved solids including many harmful contaminants. Now you can have bottle-quality water at your tap.

Simply fill out the form below and we’ll reach out to help you improve your water!

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With an EcoWater Reverse Osmosis System You Get:

  • Semi-permeable membranes to reject solids
  • Three or four-stage water filtration
  • Specially formulated pre-and post-filters to reduce contaminants, eliminate odors, and improve taste.
  • Automatic shut-off to conserve water
  • Optional electronic monitor to alert you when filters need changing.
  • Space-saving designs

Here’s How Reverse Osmosis Works:

  1. Household water is directed through a pre-filter for filtration to remove sediment, chlorine taste and odor, and particulate matter.

  2. The water is then forced, by pressure, through a semi-permeable membrane where a high percentage of the dissolved solids and other contaminants are rejected and flushed to the drain.

  3. Final polishing of the water is accomplished by an activated carbon absorption block filter removing tastes and odors. The water passes through this final filtering process immediately before going to the faucet whether it comes directly from the unit or from the storage tank.

  4. The automatic shut-off control shuts down the system when the storage tank is filled and water is not being drawn. This “demand production” feature conserves water by eliminating the constant running to the drain found in some units. The control also depressurizes the membrane when not in service extending the membrane life and reducing the need for maintenance of your reverse osmosis water purifier.
EcoWater Systems offers a broad range of reverse osmosis purification systems including the ERO 385, a state-of-the-art reverse osmosis filter. These products reduce substances such as chlorine taste, sediment, nitrates, lead, cysts, and detergents.

Fill out the form below or call (516) 591-3246 for more information & a free quote!

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Nona Ahluwalia
Nona Ahluwalia
18:35 17 Jan 23
Very happy with you service and quality enjoying the Clean... Water. I was recommended by a friend and I am recommending my family to must get this system installed. This is a life changer Anthony Binetti ,he is a sales supervisor with tons of knowledge he explained ,answered and clear every doubt if we had about installing the systemone more thing I would say this company has wonderful staff . Call them anytime they are eager to help .👍👍👍👍read more
Lisa Weiner
Lisa Weiner
17:52 12 Jan 23
Just had a new Reverse Osmosis system put in and the team... at LI Clean Water couldn't have been nicer. Starting with Daryl outlining my options to Christian and Reinaldo doing the install. They were timely - (actually early) - clean courteous and professional. Very pleased !read more
Keith Myers
Keith Myers
22:31 03 Jan 23
The largest water filtration company on the island...highly... recommendedread more
Linda Namias
Linda Namias
14:24 29 Oct 22
I rarely give 5 star reviews, but this company well... deserves it . I did extensive research and bid this out to three companies. I decided to go with LICWS based on reviews and so happy I made the right decision. More important than the initial install, is the follow up and customer service We had to do alot of tweaking to get my system to work properly as I had well water and issues with my septic system. There customer service is exceptional. The manager got on the phone with me whenever I called to help resolve. John & James always arrived within two days and are masters in this field. The entire company is totally professional and well deserves the 5 stars and reputation of being the best .Linda Nread more
Leyla Pinarli
Leyla Pinarli
00:46 11 Sep 22
Great company, great owners.I've had my reverse osmosis... system over 20yrs. And a whole house filter. Very attentive to customers. So happy we can filter our toxic water with such a great reverse osmosis systemread more
Samantha H
Samantha H
01:08 08 Aug 22
Update 8/5/22:Jennifer, the office manager, contacted me... right away after my review was posted. She was helpful. After 1.5 weeks of going back and forth with Jennifer and Madelyn and a few leaks later, we came to an agreement. Although I am not happy with all the events that took place, I can tell that the employees of this company are very loyal and the owners are very hands on with their company. I am hoping the various leaks will cease and we can move forward in a better direction.—————We had our $4,000 water osmosis system installed on Monday in our new home. We were really excited to have very clean water since my kids and I drink a ton of it. Something happened with the installation that day, causing a leak, so the water was turned off. No biggie. They came back to rectify the issue and all was well until I used my laundry washing machine after they left (for the first time that week). The machine is located where the tank was installed. An hour later, my basement was flooded with a pipe that was open. They were able to have their team come out within 1 hour to stop the leak. They said the original installers had moved things around and plugged things into the wrong outlet without letting me know, causing the flood.The cost of the emergency water removal and floor restoration to avoid mold was $7,500. I spoke with Madelyn (the co-owner); she was unapologetic and just said she would call me back. Instead of calling me back directly, she had our sales rep call us back to let us know it wasn’t their product that caused the flooding, so they’re not at fault. Correct, it wasn’t their product but the flood was directly caused by their installation and misplacement of parts which caused my pipe to leak.Our sales rep, Ryan, was great and very responsive and apologetic, and everyone that came in my home was nice and professional, but now I’m out of $7,500 in damages and the company won’t take any responsibility for their error during the installation process. We went with Long Island Clean Water as they were the least expensive out of the 4 companies we spoke with and we were referred to them by our friend. In hindsight, going with a pricier company would have saved me thousands of dollars.Although this may be a one-off situation, I’m extremely disappointed with the way this was handled and I wish they showed more empathy instead of brushing me off and not owning up to their mistakes. I don’t think I’ve ever been as disappointed and heartbroken from working with a company before. I now feel weary about the included servicing they provide for the next 12 months and am not sure what to do in the future as I don’t have trust in this company anymore.read more
Danielle Simon
Danielle Simon
16:56 26 Jul 22
I'm editing this review - because I spoke with the company... and they shared a great explanation and true customer service with me. I'm happy to be a customer.--------------Just wrapped up my first year as a customer and received my service plan in the mail as week ago. When I called in, they told me that all customers will have a gas surcharge of $25 because of the increased gas costs. I think this is outrageous - I already pay for more expensive gas as does every other American. Now gas prices are down, when I asked what the threshold was for when they would remove the surcharge, they couldn't tell me. They said all of their customers had to pay this. I'm wondering why they didn't just put it in my service contract to begin with and why it is an add on...Given, I already paid thousands for the system and then will pay hundreds for the service, so why not just make me pay more and more and more...I'm very pleased with the product, water quality and service overall but I'm wondering making me pay for your gas to run your vehicles seems ridiculous.read more
Henry Fayne
Henry Fayne
20:11 23 Jul 22
We've had the equipment for over two years and it has... performed flawlessly. Regular service has been outstanding.read more
Samantha Claster
Samantha Claster
21:30 22 Jul 22
This company’s customer service is like no other. Every... technician that has come to our home has been exceptionally friendly, polite, professional, and just seemed to love / have pride in their job.read more
Emma E
Emma E
01:15 21 Jul 22
I am thrilled with my whole house filtration system and... under the sink reverse osmosis filter. The systems were installed by Manny, Juan, and Joey. They thoroughly explained what they would be doing at my home and how the systems operate. The work areas were left clean and installation was performed quickly. My drinking water tastes great and I no longer have to deal with hard water. I am glad I called LICWS!read more
Gail Silberman
Gail Silberman
20:21 19 Jul 22
We are very happy with our Long Island Clean Water Service.... We feel safer drinking the water that is supplied with our filtration system. The service people have been professional and able to help/fix with any issues we have had. We found water under our sink and LI Clean Water sent a two people to our home immediately ( it turned out it was from a dishwasher hose) Highly recommend LI Clean Water!read more
terri R
terri R
22:08 18 Jul 22
The water is fabulous! The service is great and the men are... very knowledgeable and respectful. I did this filtration system in 2 housesread more
Will Zheng
Will Zheng
17:58 06 Jul 22
I have their system installed recently, true professionals... know what they are doing. They have explained to me different options for my house. The installation was quick and done very clean, they did follow up calls, emails and visit to make sure everything run properly.read more
Cecelia Bishop
Cecelia Bishop
18:46 08 Jun 22
Having LI Clean Water Service, Inc. install clean water... into my home has been a dream come true. We had the installation done about a month ago and it's the best thing we could have done. My skin and hair have seriously improved. This water is medicine for your health. I am pleased with the service. Anthony came to our home and he was such a delight in showing and explaining the facets of the quality of our water. He took us down the yellow brick road and we were excited to plan the next step which was the installation. When James and Reynaldo came to install the filtration system, we knew we hit Emerald City. Both technicians are fabulous. They really care about their work and about Clean Water. I felt confident about the whole process. It was really hot that day and they persevered. Afterwards there was a small issue under the sink but it was because of the humidity and I got nervous.. well Justin came the next day to check it out and everything was fine. Talk about family caring, well LI Clean Water definitely proved that. I wouldn't recommend anyone else. LI Clean Water Service is top notch in my book. Even the cats love the clean water, their water fountains stay cleaner because of it.read more
Joseph Filippone
Joseph Filippone
16:01 08 Jun 22
They did a superb job installing a home water... filter.Followup; they had done a great job after the fact with removing an old water filter.read more
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(516) 591-3246
9am-5pm Mon-Fri, 9am-2pm Sat
202 Bethpage-Sweet Hollow Rd Old Bethpage, NY 11804


Serving NY in the Following Counties:

Kings County, Queens County, New York, County, Suffolk, County, Bronx County, Nassau County, Westchester County, Fairfield County, Bergen County, New Haven County

And in the Following Cities:

Albertson, Bridgeport, East Norwich, Harrison, Alpine, Brightwaters, East Quogue, Hastings On Hudson, Amagansett, Bronxville, East Rockaway, Hauppauge, Amityville, Brookhaven, East Setauket, Hempstead, Ardsley, Calverton, Eastport, Hewlett, Armonk, Carle Place, Elmont, Hicksville, Atlantic Beach, Cedarhurst, Englewood, Holbrook, Babylon Center, Moriches, Farmingdale, Holtsville, Baldwin, Centereach, Farmingville, Huntington, Bay Shore, Centerport, Floral Park, Huntington Station, Bayport, Central Islip, Forest Hills, Island Park, Bayside, Cold Spring, Fort Lee, Islandia, Bedford, Cold Spring Harbor, Franklin Square, Islip, Bedford Hills, Commack, Freeport, Islip Terrace, Belford, Copiague, Fresh Meadows, Jamesport, Bellerose, Coram, Garden City, Jericho, Bellmore, Cresskill, Glen Cove, Kings Park, Bellport, Cutchogue, Glen Head, Lake Grove, Bethpage, Deer Park, Glen Oaks, Larchmont, Blue Point, East Hampton, Glenwood Landing, Laurel, Bohemia, East Islip, Great Neck, Lawrence, Breezy Point, East Marion, Greenlawn, Levittown, Brentwood, East Meadow, Greenvale, Lindenhurst, Briarcliff Manor, East Moriches, Greenwich, Little Neck, Bridgehampton, East Northport, Hampton Bays, Livingston

Simple Financing Options

With our simple financing plans, you can afford healthy water that's better for your body and for your home. The best part - You often save more money in reduced soap, cleaner & shampoo costs than you pay each month!

Your Assurance Guarantee

If you're looking for the best value in a whole home water treatment system or softener, you've found it. In fact, we guarantee your full system for a minimum of 5 years.

Why Choose Long Island Clean Water Service?

  • In Business Since 1985
  • World-Class Products Made in the USA
  • Best Warranties in the Industry
  • Affordable Lease and Financing Options
  • Certified Techs who Truly Care

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