914 Water Filtration & Treatment in Scarsdale, NY
Scarsdale’s housing stock is old: the typical home was built around 1943, and more than half of homes pre-date 1950. Older foundations of that age are where most waterproofing, drainage and sump pump calls come from. Public water suppliers in Westchester test and report on their water, while private well owners are responsible for their own. The county health department says private wells must be tested when a property is sold or leased and before use of a new well, and recommends periodic testing otherwise. Water treatment itself is not a county-licensed trade, but connecting plumbing generally requires a licensed plumber, so ask who does that work and for the license number.
Water filtration companies for Scarsdale
How we pick: we list up to six companies per page. Independent firms come first, then firms based outside Westchester, then franchise or network affiliates. Companies that name the town as served come before those that serve the whole county. Listings are free, not paid, and not an endorsement. Home improvement license status was looked up in the Westchester County consumer license search on Oct 26 to 27, 2026, plumber license status in the county trade license search on Oct 27, 2026, and NYS mold license status in the state Labor Department data set; each profile shows what we found.
MJ Plumbing Contractors & Son
No rating collected yetPlumbing and sump pumps
Better Water Well Systems
No rating collected yetWell water systems, pumps, water treatment and filtration
Churyk Company
No rating collected yetWell pumps, water treatment and filtration, radon-in-water aeration, well drilling
Plumbing Pumps & Water Systems
No rating collected yetWater treatment systems, well pumps, plumbing
Westfair Water Systems
No rating collected yetWhole-house filtration, softeners, well water treatment; radon, uranium, lead and arsenic removal; aeration
R.F. Lineage Plumbing & Heating
No rating collected yetWater treatment, softener installation, plumbing and heating
Housing in Scarsdale
| Place | Typical year built | Built before 1950 | Built before 1980 | Median home value |
|---|---|---|---|---|
| Scarsdale | 1943 | 54.5% | 80.6% | $1,800,700 |
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (tables B25035, B25034, B25077), retrieved Oct 2026. Estimates carry a margin of error.
What it costs
We did not find a published Westchester-specific price list, so these are national HomeGuide ranges: $850 to $5,400 installed for a whole-house filtration system, $800 to $4,000 for a well-water filtration system, and $1,200 to $3,800 for a salt-based water softener with installation. Water testing is $100 to $300. Your final price depends on what your water test finds. Full cost guide with sources.
Frequently asked questions
How many water filtration companies serve Scarsdale?
We show 6 of 6 companies we found for Scarsdale: 1 name Scarsdale as an area they serve, and the rest serve all of Westchester County. Always confirm a company covers your address.
Who handles the plumbing for water treatment in Scarsdale?
Plumbers are licensed through the county's separate trade license search. Ask each company who does the plumbing connections, ask for the license number, and look it up.
Do I need a filter or softener?
Test first. The CDC says no single treatment removes every problem, so check that a system removes the specific germ or chemical your test found. HomeGuide notes that softeners treat hardness but do not filter water.
How often should a private well be tested?
The Westchester County Health Department says EPA recommends testing private water supplies annually for nitrate and coliform bacteria, or more often if you suspect a problem.
Nearby
Sources
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