Culligan of Long Island and NYC

We know your water in Long Island and NYC, and with over 90 years of experience, Culligan of Long Island and NYC provides professional water treatment services, including water softeners, water filtration systems, and reverse osmosis drinking water, to deliver cleaner, safer, great-tasting water for your home and family.

Schedule a free consultation

Products
Reviews
Solutions finder
Resources
FAQs
Manage my account
Contact info

Select and jump using the menu below.

Limited-time offers and promotions

Discover these unique offers happening now in Long Island and NYC.

Water Softener Trade In Promo

Trade in your existing system and receive up to $400* in total value toward a new Culligan system.

Your Holiday Wish Granted: Free Installation

With Any Water Softening or Filtration System Purchase

Discount amount may vary and can be applied to softener and/or other services. Dealer participation may vary. See local dealer for details.

*Dealer participation may vary. See local dealer for details.

Culligan products and services in Long Island and NYC

11741 • Holbrook, NY

Common water problems in Holbrook

PFAS

Nicknamed “forever chemicals,” PFAS are a group of dangerous chemicals that take a long time to break down both in the environment and the human body, and may be found in your water supply.¹

Hard water

Hard water causes damage including buildup on faucets and showerheads, spots on dishes, dry hair and skin, dingy laundry and issues with water-using appliances.

Chlorine

Chlorine is commonly used to treat municipal water and is generally safe for drinking, cleaning and bathing. However, it often causes an unpleasant, bleach-like taste or smell.

Iron

Rust stains in your sink, toilet or tub; reddish-brown tints on laundry; and a metallic taste can all be caused by elevated levels of iron.

Nitrate

Nitrate is most likely to be an issue in homes with well water, as it occurs naturally in groundwater. Nitrate is colorless, odorless and tasteless and can potentially be harmful to susceptible groups like infants and pregnant women.

Lead

Lead contamination can often go undetected since it doesn’t have any taste, smell or appearance. It can occur due to corrosion of older plumbing and may have negative health impacts.

¹Contaminants may not be present in your water

Why choose Culligan for your water treatment services?

As the leader in water treatment for 85+ years, Culligan is dedicated to improving lives and protecting the planet by providing access to safer, better-tasting and more sustainable water.

100% satisfaction
guarantee

If you're not completely satisfied within 30 days of purchase, we'll refund the cost.

Backed by science
and sustainability

We’re passionate about finding new ways to bring you better water solutions through sustainability-driven innovation.

Unmatched
care

Enjoy white-glove service, expert installation and hassle-free maintenance.

Long-standing
trust

With over 85 years of water treatment experience trusted by over 150 million customers, you can count on us to provide the solutions and service you need, anytime.

Looking for the right water treatment system for your home? Take our quiz!

Whether you have city or well water, take our quick and simple quiz to find out what’s happening with your water and get recommended water treatment solutions.

Take the quiz

Ratings & reviews

“Culligan was the best choice for our home.

The reputation Culligan has is the best in the business for clean water for homeowners. Reviews for Culligan, as well as competitors, made it clear that Culligan was the best choice for the following reasons: available products, a variety of options, and the company’s known service record. My previous Culligan system, which was 28 years old, worked well, and I had a good experience with the company. The salesman was clear and knowledgeable, making the decision easy.

-Lucinda H. (Smithtown, NY)

“Prompt and courteous service.

Extremely prompt and courteous service.

-Liza B. (Sag Harbor, NY)

“Professional and thorough service.

Our service tech was incredible, professional, efficient, and thorough during our service appointment. He was also a pleasure to speak with and took the time to explain the different filters and how the system works to purify our water. A great experience from start to finish. Highly recommend!

-Mark W. (Apalachin, NY)

“Excellent service from start to finish.

My experience with Culligan getting my reverse osmosis water filtration system was excellent! The technicians were very friendly and professional. They did a great job with the service, explained everything in detail, and answered all of my questions. Herbert, the agent who did the consultation, was also excellent!

-Lisa W. (Roslyn, NY)

“Exceptional and professional installation.

The installers demonstrated exceptional professionalism. They were courteous, meticulous, and well-informed. They addressed all my questions professionally and guided me through the application installation and the process for managing shut-offs and bypasses.

-Sean L. (Port Washington, NY)

“Professional and informative installation.

The two gentlemen who came and installed my new water softener were professional, kind, and incredibly informative about how my new system worked. They left my house clean and orderly. I would be happy to have any Culligan product in my home and serviced by them.

-Bill and Caroline C. (Saint Hames, NY)

Schedule your free water consultation

Our Culligan water experts are ready to help you find the right solution for your water, starting with your free in-home water test and consultation.

Click here if you are looking to schedule a service or delivery.

Enter your information

Fields marked * are required fields.

Enter your information

Fields marked * are required fields.

Resources for
homeowners in Long Island and NYC

Common Water Problems on Long Island

Living on Long Island means access to beautiful coastlines, great communities, and fresh air—but when it comes to the water in your home, things aren’t always as clear. Many homeowners […]

Bottle-Free Coolers: A Modern Hydration Solution for Your Business

Looking to upgrade your office water system? Bottle-free coolers from Culligan offer a smarter, cleaner, and more sustainable way to keep your team hydrated—without the hassle of heavy jugs or […]

Dry, Frizzy Hair? Your Water Could Be the Problem

Are you constantly battling dry, frizzy, or unmanageable hair—no matter how many salon treatments, leave-in conditioners, or expensive shampoos you try? The culprit might not be your products or hair […]

Bottled Water for Your Business: What to Know

Whether you manage an office, retail store, warehouse, or healthcare facility, keeping your team and customers hydrated is essential. Culligan offers reliable bottled water delivery tailored to the needs of […]

What to Do During a Boil Water Advisory on Long Island

When a boil water advisory is issued in the Long Island area, it’s essential to know what steps to take to protect yourself, your family, and your community. Here’s a guide […]

View all resources

Explore more Culligan water solutions

Office
drinking water

Cost-effective and convenient systems bring fresh, filtered water to your employees.

Explore office water solutions

Commercial & industrial water treatment services

Revolutionary designs for commercial and industrial water treatment are customizable to your business needs.

Explore commercial/industrial water solutions

Frequently asked questions

How hard is the water in Long Island?

Water hardness depends on where you live. Long Island homes receive their water from groundwater pumped from the Long Island aquifer system, while New York City's water comes from upstate reservoirs. These sources differ in mineral content, and water hardness also varies between Long Island water districts. Hard water, PFAS, and chlorine-related tastes are among the most common concerns reported to Culligan of Long Island and NYC. A free in-home water test can measure the hardness of your tap water.

Is PFAS a concern in Long Island drinking water?

PFAS, commonly known as "forever chemicals," are a significant water quality concern on Long Island. The Suffolk County Water Authority publishes PFAS test results for each distribution area in its annual Drinking Water Quality Report and provides information about its testing and treatment programs on its website. If you're concerned about PFAS in your drinking water, Culligan of Long Island and NYC can send a water sample to Culligan's Illinois EPA-certified laboratory for PFAS testing. The Culligan Aquasential Whole Home PFAS Water Filter starts as low as $93/month.

Is tap water safe to drink in Long Island?

The Suffolk County Water Authority reports that its drinking water continues to meet state and federal regulations. New York City and other Long Island water districts also publish annual water quality reports. However, many homeowners choose additional water treatment to address specific concerns. Water can pick up lead from older plumbing, and PFAS remain a growing concern. Homes that rely on private wells are not treated or monitored by a public utility. A free water test from Culligan of Long Island and NYC can help identify common water quality concerns at your tap.

Where can I get my water tested near me in Long Island?

Culligan of Long Island and NYC offers free water testing throughout Long Island and New York City, either through an in-home appointment or a phone consultation. The test checks for hardness, chlorine, pH, iron, and total dissolved solids (TDS), with results available in 30 minutes or less. A Culligan water expert will explain your results and recommend treatment options based on your water quality concerns. Schedule a free water test online or call (516) 789-3185. Be sure to mention any concerns, such as water spots, staining, unusual tastes, or odors.

How much does a Culligan water softener cost in Long Island?

Culligan water softeners on Long Island start as low as $49/month. Your monthly cost depends on the system model, water hardness, household water usage, and installation requirements. For example, the Aquasential Smart High Efficiency Water Softener starts as low as $65/month. Following a free in-home water test, a Culligan of Long Island and NYC water expert will recommend the appropriate system for your home and confirm pricing. Financing is available for qualified buyers.

How much does Culligan water cost per month in Long Island?

Culligan water treatment systems on Long Island start as low as $31/month for a reverse osmosis drinking water system, $49/month for a water softener, and $52/month for a whole-home water filtration system. Your monthly cost depends on the type of system, your home's water treatment needs, system size, and additional features, such as Wi-Fi connectivity or enhanced filtration. After a free water test, a Culligan of Long Island and NYC water expert will review your options and provide accurate pricing. Financing is available for qualified buyers.

Does Long Island add fluoride to its tap water?

Fluoride practices vary by water utility, so the answer depends on your water provider. Your utility's annual Water Quality Report, also known as a Consumer Confidence Report, identifies whether fluoride is added and at what concentration. Homes that rely on private wells may contain naturally occurring fluoride. Some drinking water filtration systems can reduce fluoride, but performance varies by model. Ask your Culligan of Long Island and NYC water expert for specific performance information about any system you're considering.

Does Culligan install water systems in homes, condos, and businesses in Long Island?

Yes! Culligan of Long Island and NYC installs water softeners, whole-home filtration systems, and reverse osmosis drinking water systems in single-family homes, condos, and townhomes throughout Long Island and New York City. For smaller living spaces, compact solutions include condo-sized salt-free conditioners and under-sink reverse osmosis systems. Culligan also designs, installs, and services commercial and industrial water treatment systems for businesses, including restaurants, hotels, healthcare facilities, schools, and manufacturers. Call (516) 789-3185 to schedule a free in-home water test or request a free commercial quote.

What cities and neighborhoods does Culligan of Long Island and NYC serve?

Culligan of Long Island and NYC, located at 1330 Lincoln Avenue, Suite 1, in Holbrook, serves 470 ZIP codes throughout Long Island and New York City. Service areas include Holbrook, Brooklyn, Manhattan, Flushing, Jamaica, Huntington Station, Bay Shore, Massapequa, Patchogue, Hempstead, Ronkonkoma, Levittown, and Long Beach. View the complete list of service ZIP codes below or call (516) 789-3185 to confirm service availability at your address.

Why does my Long Island tap water leave white spots on dishes and faucets?

White spots are typically caused by limescale, which forms when water evaporates and leaves behind calcium and magnesium minerals. Hard water is common in many Long Island communities, making spots on glassware, faucets, and shower doors a frequent concern for local homeowners. A Culligan water softener removes hardness minerals before the water reaches your fixtures, helping reduce new water spots and scale buildup. Schedule a free water test to determine your home's water hardness level.

Does Culligan of Long Island and NYC offer commercial and industrial water treatment?

Yes! Culligan of Long Island and NYC provides commercial and industrial water treatment solutions for businesses throughout Long Island and New York City. Available systems include commercial water softeners, filtration systems, reverse osmosis, deionization, and multimedia filtration. Each system is designed to accommodate your facility's water usage and specific water quality requirements. Our local team provides system design, professional installation, and ongoing service. Call (516) 789-3185 to request a free commercial water treatment quote.

What types of businesses does Culligan of Long Island and NYC serve?

Culligan of Long Island and NYC serves a wide variety of businesses, including restaurants, food service establishments, hotels, healthcare facilities, medical laboratories, surgical centers, assisted living communities, schools, universities, manufacturers, and industrial plants. We also provide water treatment solutions for car washes, commercial laundries, grocery stores, metal finishing facilities, and pharmaceutical operations. Because every business has unique water quality requirements, Culligan customizes each system to fit the facility's operational needs, budget, and timeline.

How can commercial water treatment help my Long Island business?

Hard water can cause scale buildup in boilers, water heaters, cooling systems, dishwashers, and ice makers. Commercial water softening and filtration systems help reduce scale, allowing equipment to operate more efficiently, potentially extending its lifespan and reducing maintenance needs. Industrial facilities also use treated water for boiler pretreatment, cooling and chilling systems, and processes that require consistent water quality. A Culligan of Long Island and NYC water expert can evaluate your facility's water quality and recommend a customized treatment solution to support your business operations.

How do I get a commercial water treatment quote in Long Island?

Call Culligan of Long Island and NYC at (516) 789-3185 or request a free quote online. A Culligan water expert will evaluate your facility's water quality, water usage, and equipment requirements before recommending a comprehensive solution tailored to your budget, timeline, and sustainability goals. Commercial customers also benefit from professionally trained local technicians and Culligan's 30-day, 100% satisfaction guarantee.