Top-rated water treatment pros.

Get matched with top water treatment pros in Sea Cliff, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Water treatment pros in Sea Cliff - Updated Nov 2026

Avatar for Simply PUR Water Filtration
Simply PUR Water Filtration
5.0(
39
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"My wife and I have been talking about getting a whole house water filtration system and alkaline reverse osmosis drinking system for a while after reading how contaminated our water supply is on Long Island. We called Simply PUR Water Filtration and it was the best decision we made. They were extremely friendly, knowledgeable, honest, and also gave us options in which they educated us and gave us all the information needed with equipment and pricing, as well as recommendations. They made it easy to understand, answered all of our questions as well as other systems we were confused with and recommended systems we needed along with a free water test. With 3 children playing sports it's awesome knowing that they are consuming super clean healthy water on a daily basis. They enjoy the taste and feel safer knowing that our whole house is treated as well. They also re-test my water after installation and give us courtesy calls for service which is much needed in my busy schedule. I highly recommend this company!!!"
Pentair Fresh Point 575M
Pentair Fresh Point 575M
Farmingville Home
East Williston Home
East Chester Home

+94

Response time1 day
Response rate89%
30 neighbors recently requested a quote
Avatar for Purified Solutions, LLC
Purified Solutions, LLC
5.0(
14
)
Water Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I had a Reverse Osmosis water system installed under my sink and I was very pleased with the job. Jose performed the task and from his initial contact (when he provided an estimate and follow-ups) to completion of the job, he was very professional. He showed up on time, worked efficiently, quickly, knew what he was doing, and cleaned up afterwards. The installation was very neatly done. I was also very pleased that he was PPE compliant. If you need a job done well, call Jose. You will have no regrets."
Response time9 hrs
Response rate86%
Recommended by92%of homeowners
Avatar for Long lsland Clean Water Service, Inc.
Long lsland Clean Water Service, Inc.
4.6(
67
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"From the sales representative, Anthony, to the owners Mark and Madelyn, our family's experience with this company was impeccable. They showed such care and compassion once they found out that the Long Island's hard water in our home caused our 5 month old skin to breakout so badly. She was in such distress and they went above and beyond the call of duty to ensure that the water system was installed ASAP. The installers were so considerate that they even removed their shoes while working in our kitchen, without us asking them to do so. They worked efficiently and were very thorough. Jennifer who handles the office matters, was a pleasure to work with. As she rightfully texted me, It takes a village to raise a child and we truly are blessed to be a part of this water family. We rewashed the baby's clothes and you can immediately feel the difference and the natural products that can only be ordered through the company will save us tons of money from household cleaning supplies to bodywash everything is all natural. I have already convinced my pastors to have the system installed in their new long island home and will continue to recommend this company to everyone I can. Worth every single penny!"
Bypass
Whole House Water Filtration System with UV Filter
Reverse Osmosis
Reionator Pro Ultra
Reionator Pro Ultra

+6

Response time2 days
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for HG Plumbing & Heating Solutions
HG Plumbing & Heating Solutions
5.0(
22
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"I will never use another plumber as long as Harris is available!! He is diligent, conscience, careful, responsible, clean, precise and professional. He works tirelessly to make sure he is not disruptive to your house. He has done a lot of work for me and I couldn't be happier with him. During covid, he fixed several busted pipes, spending hours making sure to minimize damage to the walls, saving me a fortune. He also installed a new water filter for me, and replaced a few faucets. I am thrilled with his professionalism, work and care. Simply put, he is the best!!!!"
High Efficiency Heating
COMBINATION SYSTEMS FOR HOT WATER AND HEAT
HYDRONICS
Prefab HTP Boiler Heating System
Radiant Heat

+1

Response time7 hrs
Recommended by100%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Bonhomme Plumbing and Home Renovations
4.9(
6
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

Bonhomme Plumbing and Home Renovations is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 25 years of accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time7 hrs
Recommended by100%of homeowners
1-800-Plumber +Air of Central Long Island
New to Angi
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

1800-Plumber +Air is located in Central Long Island, NY and is focused on being the BEST! It’s not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

2 neighbors recently requested a quote
Avatar for ANQOR PLUMBING & HEATING INC.
ANQOR PLUMBING & HEATING INC.
New to Angi
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Sea Cliff, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

At ANQOR PLUMBING & HEATING INC. we pride our ourselves in quality, value, and service! We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We look forward to earning your business! \n \nWhen you contact us, you'll be given the exceptional customer service you deserve, including free quotes, up-front pricing, and no hidden fees. These benefits are provided to our clients in order to show that our company genuinely cares about customer satisfaction. Give us a call today to schedule your free estimate!

Response time20 mins
Response rate96%
...
Showing 1-10 of 83

The Sea Cliff, NY homeowners’ guide to water treatment services

From average costs to expert advice, get all the answers you need to get your job done.