Whole-Home Water Filtration for Long Island Homes

A whole-home system (also called point-of-entry) is installed on your main water line, so every faucet, shower, and appliance in the house gets filtered water, not just one tap. Depending on the configuration, it can help reduce chlorine, sediment, and other common contaminants throughout your home.

Long Island relies on a sole-source underground aquifer, and homeowners across Nassau and Suffolk commonly deal with PFAS (including from the Bethpage plume), 1,4-dioxane in parts of Suffolk, chlorine and disinfection byproducts, and hard water. Private wells can also carry iron, manganese, and elevated nitrogen. The right system depends on what is actually in your water, which is why every recommendation starts with a free in-home test.

Whole-home filtration treats all the water entering your house and is ideal for chlorine, sediment, and hard water. Reverse osmosis is a point-of-use system, usually under the kitchen sink, that delivers highly purified drinking water. Alkaline and mineralizer systems add beneficial minerals and raise pH for better-tasting water. Many Long Island homes use a combination, and we recommend the mix that fits your water and household.

Cost depends on your home's size, whether you are on municipal or well water, and the specific contaminants we need to address, so there is no one-size-fits-all price. After your free in-home water test, a specialist recommends the right system and gives you transparent pricing with no obligation. Every installed system is backed by a 10-year guarantee.

Yes, it is completely free with no obligation. A local pHountain specialist comes to your home, tests your tap water, and explains the results in plain language. If your water warrants a system we will recommend one; if it tests clean, we will tell you that. Either way, the results are yours to keep.

Yes. Well water and municipal supply call for different treatment approaches, and our specialists are trained for both. Private wells, common across parts of Suffolk County, often need iron, manganese, sediment, and nitrogen addressed without any municipal treatment buffer. We match the system to your specific water chemistry.

Our systems are designed to be low-maintenance, and they are sized to protect your home's water pressure. Depending on the system, upkeep may be as simple as an occasional filter change, and replacement filters are available in our online store. We walk you through the exact service schedule for your setup during installation.

Book a free in-home water test. A local specialist tests your water, walks you through the results, and recommends the right system with transparent pricing only if you need one. There is no pressure and no obligation. Call 1-631-991-3995 or request your free test online. pHountain serves Nassau County, Suffolk County, and the wider Long Island area.