Water Filtration in Westchester County, NY
Whole-Home Water Filtration for Westchester County
From Yonkers to Chappaqua, Westchester homes face water challenges that go far deeper than taste and odor. Lead, chloramine, and radon don’t announce themselves — and a whole-home system is the only protection that works around the clock.
Serving All of Westchester County
Westchester County Water Filtration, Installed by Certified Specialists
pHountain Water Filters serves the entire Westchester County area, from the dense urban neighborhoods of the south to the wooded estates and rural properties of the north. Whether your home draws from the New York City reservoir system or a private well, our technicians arrive with the equipment and expertise to test your water and recommend the right solution.
We know that Westchester homeowners have high standards — for their properties, their families, and the professionals they invite into their homes. We operate accordingly, with punctual scheduling, transparent pricing, and clean, professional installations every time.
Communities We Serve in Westchester County:
- Yonkers
- Mount Vernon
- New Rochelle
- Port Chester
- Rye
- Larchmont
- Mamaroneck
- Pelham
- Harrison
- White Plains
- Scarsdale
- Eastchester
- Bronxville
- Tuckahoe
- Ardsley
- Dobbs Ferry
- Tarrytown
- Sleepy Hollow
- Ossining
- Croton-on-Hudson
- Peekskill
- Yorktown
- Somers
- Mount Kisco
- Pleasantville
- Chappaqua
- Bedford
Don’t see your town? We service all Westchester County communities. Call us to confirm availability.
Schedule a Westchester Appointment
384 Moffitt Blvd, Islip, NY 11751
1-631-991-3995- Mon – Fri: 9:00 AM – 5:00 PM
- Saturday: 10:00 AM – 2:00 PM
- Sunday: Closed
Appointments available throughout Westchester County
Lead Has No Safe Level — and Older Westchester Homes Are at Risk
Westchester County has one of the largest concentrations of pre-1986 housing in New York State. Homes built before 1986 may have lead solder in their plumbing. Homes built before the 1960s often still have lead service lines connecting the street main to the house. Lead is colorless, tasteless, and odorless — it is completely undetectable without a test. The EPA and CDC agree there is no safe level of lead exposure, particularly for children and pregnant women. A whole-home filtration system installed at the point of entry is one of the most reliable ways to protect your family while older infrastructure is replaced.
Test Your Water for Lead — FreeA Common Misconception
“I Get NYC Reservoir Water — It Must Be Clean”
New York City’s Catskill and Delaware reservoirs consistently produce some of the cleanest source water in the country. Many Westchester residents receive this water and reasonably assume the quality at their tap matches the quality at the source. It doesn’t — and the gap between the two is where the risk lives.
Water travels from upstate reservoirs through aging transmission mains, local distribution pipes, and finally through the interior plumbing of your home. Each stage introduces potential for contamination:
High-quality source water, carefully monitored.
Added for long-distance distribution. Creates disinfection byproducts. Not removed by standard carbon filters.
Some lines date back decades. Sediment, corrosion, and microbial growth can enter here.
Lead solder, galvanized steel, or lead service lines can leach directly into water at the final stage before your glass.
A whole-home point-of-entry system solves all four stages at once — every faucet, shower, and appliance, protected from the moment water enters your property.
Know Your Water
Water Quality Issues Affecting Westchester County Homes
Westchester’s geology, infrastructure age, and land-use history create a distinct set of water quality challenges not found on Long Island.
Lead from Aging Service Lines & Solder
Any home built before 1986 may have lead solder at pipe joints; homes built before approximately 1960 may have a lead service line from the street main. The problem is widespread in Yonkers, Mount Vernon, New Rochelle, Port Chester, and other urban areas with dense pre-war housing. Corrosive water chemistry loosens lead particles, which then travel directly to your kitchen tap and your family’s glass.
Chloramine & Disinfection Byproducts
Most Westchester communities connected to the NYC reservoir system receive water treated with chloramine — a blend of chlorine and ammonia. It travels farther than chlorine without degrading, but it reacts with organic matter to form N-nitrosodimethylamine (NDMA) and other disinfection byproducts. Standard carbon block filters sold for chlorine removal are largely ineffective against chloramine; catalytic carbon media is required.
Radon in Well Water
Northern and central Westchester sits on granite and gneiss bedrock formations that naturally generate radon gas. Radon dissolves readily into groundwater and enters your home through showers, faucets, and boiling water — releasing into indoor air. The EPA places radon as the second-leading cause of lung cancer in the U.S. after smoking. Private well owners in Bedford, Chappaqua, Somers, and Yorktown are most at risk and should test both their water and indoor air.
PFAS Near the Airport & Industrial Sites
PFAS contamination has been confirmed near Westchester County Airport in White Plains, where PFAS-containing firefighting foam was historically used. Several industrial areas in southern Westchester have legacy contamination plumes that have reached groundwater. The EPA’s new PFAS maximum contaminant levels — set at 4 parts per trillion for PFOA and PFOS — make previously “acceptable” levels no longer permissible.
Legacy Industrial Contamination
Yonkers and southern Westchester have a century-long industrial history: textile mills, manufacturing plants, and railroad operations. PCBs, petroleum hydrocarbons, and heavy metals remain in the soil and groundwater of impacted areas. Homeowners near former industrial parcels — even if redeveloped — are wise to test for VOCs and heavy metals beyond what routine municipal testing covers.
Pesticides & Herbicides from Golf Courses & Lawns
Westchester County has a high concentration of golf courses and large residential properties with extensive lawn-care programs. Pesticide and herbicide runoff — particularly atrazine, simazine, and lawn fertilizer nitrogen — can infiltrate shallow aquifer zones and private wells, especially after heavy rain events.
Every home is different. A free in-home water test identifies exactly what you’re dealing with before any system is recommended.
Why pHountain
What Westchester Homeowners Should Expect from a Water Filtration Company
You invest in your home. The company you trust with your water should match that standard.
Test First, Recommend Second
We never recommend a system before we test your water. Every consultation begins with an in-home assessment that identifies what’s actually present — not what’s typical for your area.
Family-First Since Day One
pHountain was founded to protect a family — and that mission shapes every recommendation we make. We don’t sell the most expensive system. We sell the right one.
10-Year System Guarantee
Every installation is backed by a 10-year guarantee. That’s not a marketing phrase — it’s a contractual commitment that your system performs as specified for a decade.
Professional & Maintenance-Free
Certified technicians handle the installation from start to finish — typically in under four hours. Our systems require no maintenance, no cartridge replacements, and no recurring service visits.
Our Systems
Filtration Systems Built for Westchester Homes
A Yonkers row house and a Chappaqua colonial have very different water demands. We have a system sized for both.
PureFlow Plus
Homes 500 – 2,000 sq ft
- 1,000,000+ gallon capacity
- Family of 5 or fewer
- 10-year guarantee
- Maintenance-free
Hydramax Pro
Homes 1,500 – 4,000 sq ft
- 1,500,000+ gallon capacity
- Family of 4 or more
- 10-year guarantee
- Maintenance-free
Grand Estate
Homes 3,000 – 7,000+ sq ft
- 2,000,000+ gallon capacity
- Family of 5 or more
- 10-year guarantee
- Maintenance-free
Start with the Facts
Free In-Home Water Test for Westchester County Homeowners
The water concerns in Westchester are real, documented, and largely invisible without proper testing. Our certified specialists come to your home, run a thorough assessment, and give you a clear picture of exactly what’s in your water — with no obligation to purchase anything.
Your free water test covers:
- Lead and copper screening
- Chloramine, chlorine, and disinfection byproduct indicators
- Hardness, pH, iron, and TDS (total dissolved solids)
- PFAS screening for properties near known impacted areas
- Radon indicators for private well homes in northern Westchester
- A system recommendation only if your water calls for it — with transparent, itemized pricing
Clean results mean we say so and walk away. That’s our standard.
Request Your Free Westchester Water Test
We respond within one business day to schedule your appointment.
Common Questions
Frequently Asked Questions — Westchester County
Do you service all of Westchester County?
Yes — we service the full county, from Yonkers, Mount Vernon, and New Rochelle in the south to Peekskill, Bedford, Chappaqua, and Somers in the north. Call 1-631-991-3995 to confirm scheduling availability in your specific area.
My home was built in the 1950s. Should I be worried about lead?
Yes, this is a legitimate concern. Homes built before 1986 may have lead solder at plumbing joints, and those built before approximately 1960 are more likely to have a lead service line connecting to the street main. Lead has no safe level of exposure and is completely undetectable without testing. We include lead screening in every free in-home water test. If lead is present, a whole-home point-of-entry system is one of the most effective ways to protect your family.
What is chloramine and why can’t a standard filter remove it?
Chloramine is a disinfectant formed by combining chlorine with ammonia. Municipal systems that deliver water over long distances — including many Westchester communities on the NYC reservoir system — use chloramine because it stays active much longer than free chlorine. The problem is that the carbon media in standard pitcher filters and most off-the-shelf filters is optimized for free chlorine. Chloramine requires catalytic carbon or extended contact time to break down. Our systems use the right media for the water chemistry in your area.
How do I know if my well water has radon?
You can’t know without testing — radon is a colorless, odorless, tasteless gas that dissolves readily into groundwater. Homes in northern Westchester on granite or gneiss bedrock (Bedford, Chappaqua, Yorktown, Somers, North Salem) are at elevated risk. We include radon screening as part of our well-water assessments for properties in higher-risk areas. If radon is confirmed, aeration or granular activated carbon treatment can effectively remove it from your water supply.
I receive NYC reservoir water. Do I still need filtration?
Source water quality and tap water quality are two different things. NYC’s reservoir water is excellent at the source. But by the time it reaches your tap, it has traveled through aging transmission mains, local distribution lines, and your home’s own plumbing — each of which can introduce lead, sediment, chloramine byproducts, and corrosion. A free water test will show exactly what your tap water contains, not what the reservoir water contains.
How long does installation take and is it disruptive?
Most installations are completed in 2 to 4 hours. Our technicians work cleanly, protect your floors, and leave the installation area tidy. The system is installed at the main water entry point — typically in the basement, utility room, or garage — and requires a brief water shutoff during connection. Once installed, it operates silently and requires no maintenance.
From Westchester Families
What Our Westchester Customers Are Saying
“Our home in Yonkers was built in 1948 and we always assumed the water was fine because it tasted fine. The test found lead. That alone was enough for us. The system was installed the next week and we have complete peace of mind now.”
“I always figured we were getting clean NYC water. The pHountain test showed chloramine and elevated TDS at our tap. The technician explained exactly why that happens and what the system does about it. Everything about the experience was professional and straightforward.”
“We have a well in Chappaqua and tested positive for radon. pHountain walked us through what that meant, what it didn’t mean, and what our options were. No scare tactics, just clear information. The installation was spotless and took less than three hours.”
The Right Next Step
Know What’s in Your Westchester Water Before You Assume It’s Fine
Book a free in-home water test. No obligation, no pressure — just accurate results and honest guidance from a team that puts your family first.