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Water Line Services Nassau County

Serving All Nassau County Communities

Long Island Water and Sewer Main provides water line replacement services throughout Nassau County and surrounding Long Island communities. This page details exactly where we serve and how we can help you.

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Construction workers laying underground pipes for water, sewerage, electrical lines, and fiber optic cables
Light blue pipe used for trenchless plumbing, partially visible in freshly dug soil at a Long Island, NY construction site

Nassau County Water Line Replacement Experts

Local Knowledge Makes the Difference

When your water line fails in Nassau County, you need someone who understands the unique challenges here. Most service lines in Nassau County were installed decades ago, and many homes built before 1980 are dealing with galvanized steel or lead pipes corroding from the inside out.

We’ve been serving Nassau County homeowners for nearly 40 years. We know the soil conditions, the local permits, and the infrastructure challenges that make Long Island different. Your water comes from groundwater aquifers – nowhere else – which means protecting those lines is critical for your family’s health and safety.

That local expertise means faster response times, proper permits handled correctly, and solutions designed specifically for Nassau County conditions. When you’re facing a water line emergency, you want someone who knows exactly what we’re dealing with.

Our Services at a Glance

Septic tank being pumped into a tanker or containment tank during routine waste removal

Sewer Services

Sewer maintenance and repair are urgent matters and should always be addressed as soon as possible.

For nearly 40 years, the team at Long Island Sewer and Water Main has been repairing and maintaining the sewer systems of Suffolk County and Nassau County as well as the five boroughs. Whether you are in need of a major sewer line repair, or routine sewer and drain cleaning, our team is ready to get to work for you.
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Plumbing Services

The team at Long Island Sewer and Water Main is ready to help you with any of your plumbing needs.

From an emergency pipe bursting to cleaning a sewer or pipeline, we can get the job done in a timely and efficient manner. We are experienced in tank testing, cleaning and removal as well. From a minor plumbing problem, to swimming pool construction, we are proud to be the plumbers of choice in the entire Long Island area.
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Cesspool Services

Cesspool and septic tank services are very important, and should be addressed on a regular basis.

Whether you are in need of routine drain cleaning or cesspool pumping, or need a new septic tank installed, we have the equipment and skill to get the job done. When it comes to getting your cesspool pumped, cleaned, repaired, or installed, the team at Long Island Sewer and Water Main is ready to get to work for your home or business.
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Find Your Nassau County Community