Save Up To 40%A better-water deal for Long Island homes is happening now.
Lifetime Warranty

Pressure Tank & Control Valve

Professional Installation
5.0 Google Rating

53 Google Reviews

Family Owned

Long Island Based Family Business

Discounts for Military,

Veterans & First Responders

Lifetime Warranty

Pressure Tank & Control Valve

Professional Installation
5.0 Google Rating

53 Google Reviews

Family Owned

Long Island Based Family Business

Discounts for Military,

Veterans & First Responders

Serving every Long Island community
Family-owned. Home-focused. Local.

Water Filtration Systems for Long Island Homes

Better water at the best price, with professional recommendations for your home, water source, and household needs.

Professional installation Lifetime pressure tank & valve warranty Nassau & Suffolk County
Let's talk about your home water.

Tell us a little about your home and we'll help you find the right fit.

Freshline Water is a family-owned Long Island water treatment company specializing in whole-home water filtration, water softening, reverse osmosis, and well-water treatment. We professionally install water treatment systems throughout Nassau and Suffolk County.

Complete Water Treatment Solutions for Long Island

Explore professionally installed systems for city water, well water, whole-home treatment, and drinking water.

Water Softeners

Reduce hardness minerals that contribute to scale, soap residue, and appliance buildup.

  • ✓Hardness treatment
  • ✓Home-specific sizing
  • ✓Professional installation
Learn about water softeners →

Reverse Osmosis

Point-of-use drinking water systems selected around household use and local water conditions.

  • ✓Dedicated drinking water
  • ✓Compact system options
  • ✓Filter support
Learn about reverse osmosis →

Whole House Filtration

Point-of-entry filtration designed to treat water before it reaches fixtures and appliances.

  • ✓Whole-home coverage
  • ✓Custom media selection
  • ✓High-flow options
Learn about whole house filtration →

Well Water Treatment

Specialized treatment systems designed to address iron, sulfur, and other common well water issues.

  • ✓Remove iron & sulfur
  • ✓Eliminate odors
  • ✓Protect plumbing
Learn about well water treatment →

City Water Treatment

Filtration and softening options for Long Island homes supplied by public water systems.

  • ✓Chlorine-focused filtration
  • ✓Hardness treatment
  • ✓Single or dual tank options
Learn about city water treatment →
—Our Best Seller—

Original Price $4,950 (save up to 40% off)

Complete Home System Package

Complete Home Water System

What all goes into this system?

– 14 lbs of NSF Certified polishing gravel

– 50 lbs of 10% food grade NSF certified softening resin sourced in USA

– 14 lbs of naturally sourced NSF certified granular activated carbon

Whole Home Filtration and Water Softening

Whole Home Filtration and Water Softening

A high-performance water softening system with advanced features to improve water quality. It enhances skin and hair softness, protects water-using appliances, and reduces soap and cleaning supply usage by over 75%.

Softer skin and hair
Energy savings
Cleaner clothes and dishes
Easy maintenance with programmable settings
Learn More ▾
ALKAPRO 800

ALKAPRO 800

Say goodbye to hidden contaminants in your water and hello to safe, great-tasting hydration for the whole family. This smart, tankless Reverse Osmosis (R.O.) system from Freshline Water makes it easy to enjoy clean, refreshing water straight from your tap. Built for everyday convenience and using the latest technology, the ALKAPRO 800 keeps your water healthy and delicious while being kind to the environment.

800 GPD filtration capacity
Eliminates harmful substances
Improves water taste
Includes a complete installation
Learn More ▾
Product-Specific Documentation

Product-Specific Documentation

System specifications and certifications are listed by product so you can compare the equipment selected for your home

Assembled in the USA

Assembled in the USA

High-quality systems built right here in the USA, designed to handle Long Island's unique water challenges

Total Home Solution

Total Home Solution

Whole Home Treatment, Drinking Water Solutions, and Leak Prevention Available

Filtration Technology

Filtration Technology

Each system is subject to rigid quality control and testing, the results of which are proudly included in packaging

Affordable Price

Affordable Price

Clear system recommendations and proposal details based on your home's treatment needs.

FAQs

Exploring our common questions answered.

What is a whole-home water filtration system?
A whole-home water filtration system filters the water at the main point of entry, ensuring clean, filtered water is available throughout your entire home for drinking, cooking, bathing, and cleaning. It treats all the water before it reaches any faucet, shower, or appliance in your house.
How does reverse osmosis work?
Reverse osmosis (RO) works by pushing water through a semipermeable membrane that removes contaminants like chlorine, heavy metals, fluoride, and other impurities, providing purified water for drinking and cooking. The process filters out particles as small as 0.0001 microns, delivering some of the cleanest water possible.
How often should I replace the filters?
For most whole-home systems, filters should be checked annually. Reverse osmosis filters typically need replacement every 6 to 12 months depending on usage and water quality. Our team provides guidance specific to your system and can set up a maintenance schedule so you never have to worry about it.
Why should I choose a water filtration system for my home?
Long Island water can contain chlorine, sediment, hardness minerals, and other contaminants that affect taste, odor, and your home's plumbing. A filtration system removes these impurities, giving your family cleaner drinking water, softer skin and hair, and better protection for your pipes and appliances.
What contaminants does your filtration system remove?
Treatment capabilities depend on the specific system, media, and product documentation. Freshline reviews your water source and treatment goals before recommending filtration, softening, reverse osmosis, or a staged system for the home.
Will the filtration system affect my water pressure?
Every treatment system creates some resistance, so correct sizing matters. Freshline reviews plumbing size, household demand, media volume, and valve flow to select equipment intended to support the home's normal service needs.
Do you offer free installation?
Freshline provides professional installation and explains what is included with the system proposal. Installation requirements can vary by equipment, plumbing, access, and property conditions.
How long does installation take?
Installation time depends on the selected equipment, plumbing, access, drain and electrical requirements, and whether the project uses one or multiple treatment stages. Freshline reviews the expected process before scheduling.
Do you service all of Long Island?
Yes, Freshline Water proudly serves homeowners across all of Long Island — from the North Shore to the South Shore and from the western border to the East End. Wherever you call the island home, we've got you covered.
What warranty do your systems come with?
All Freshline Water systems come with a lifetime warranty on the pressure tank and the control valve. We stand behind the quality of our products and are always available if you need support, maintenance, or have any questions about your system.

Real Freshline Installations Across Long Island

Freshline whole-home water filtration system installation
Freshline whole-home water softener and filtration installation
Freshline dual-tank water filtration system installation
Freshline water filtration system installation in a utility room
Freshline reverse osmosis drinking water system under a sink
Freshline reverse osmosis system installed under a kitchen sink
GoogleWhat Long Island homeowners are saying
5.0
53 Google reviews
J
Jennifer Arce
2 days ago

Such a great experience from start to finish! We are almost at two weeks since installation and have already seen a big difference in our skin and hair. Ryan was professional, helpful, and made the whole process quick and easy.

E
Eddie Fuschetto
3 weeks ago

Very professional and well trained service provider. No tricks and 100% honest pricing with excellent installers. Highly recommending to other friends and family members if they need a water filtration system for their home.

G
Glenn Bedell
a month ago

I couldn't be happier with Freshline Water! The price was unbeatable, the work was top notch, and the customer service was exceptional. Freshline is transparent, patient, and truly cares about getting it right. Highly recommend!

L
Lauren Sobel
a month ago

Ryan was such a pleasure to work with and explained everything. Immediately saw a huge difference in our water. My eyes used to burn in the shower and now my hair and skin feel so much softer and less dry. And with our reverse osmosis system set up in the kitchen, our water tastes great! Thank you Freshline!

S
Sal Sica | Sica Realty Group
a month ago

Freshline Water exceeded my expectations! From start to finish, the entire experience was professional, quick, and efficient. Ryan was fantastic—knowledgeable, courteous, and incredibly helpful throughout the process. I highly recommend Freshline Water to anyone looking for a reliable and trustworthy water treatment company!

M
Mike M
a month ago

Great experience using Freshline Water. Ryan was a pleasure to work with in answering my questions and scheduling my installation. Kang did a professional job installing my unit and is very knowledgeable about the system and all plumbing. I would recommend them to anyone looking for clean water in their home.