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Top-Rated Water treatment pros in Warren - Updated Nov 2026

Avatar for H2O Care Inc
H2O Care Inc
4.7(
51
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Ryan came to house and reviewed our needs and what was available. Everything was explained to us so we understood what was to be installed and what what future services we would need (filter changes and when to expect the need to change filters). The filter system was installed the next week and was done in a professional manner. We would definitely recommend them for water filtration needs."
Whole House Reverse Osmosis Desalination System
High efficiency water softener with sediment and carbon filtration to correct hard water, manganese and sediment build-up as well as chlorine taste & odor on this public water supply.
The water from this private well revealed high radon and iron in the lab water test.  This system eliminated these water quality issues.
Additional Photos
Additional Photos

+22

Response time5 days
41 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Clear Water Pump & Well Service, Inc.
Clear Water Pump & Well Service, Inc.
4.4(
39
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"From customer service to installation I couldn’t be happier. My house was built in 1745 so I was concerned with having an old basement. I needn’t have worried. Very professional. Answered all my questions in detail. If you need a water filtration system I wouldn’t hesitate calling clear water pump and well services."
Residential water well drilling for residential customer in MA
Water Filtration solution
Recent residential water filtration installation. Clean safe water!
Recent residential water filtration installation
Response time1 day
102 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for J & O Plumbing, LLC
J & O Plumbing, LLC
4.6(
107
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"I recently had the pleasure of working with J & O Plumbing, and I couldn’t be happier with the service! From the moment I called, they were prompt, professional, and courteous. They arrived right on time, quickly diagnosed the issue, and explained everything clearly before starting the work. The repair was done efficiently and with great attention to detail. What really stood out was how clean they left the area with no mess at all, which is always appreciated. Their pricing was fair and transparent, with no surprises. It’s rare to find tradespeople who are this reliable and respectful of your time and home. I’ll definitely be calling them again for any future plumbing needs and highly recommend them to anyone looking for honest, quality service."
Response time6 hrs
11 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for CJ's Plumbing & Heating Specialists, LLC
CJ's Plumbing & Heating Specialists, LLC
4.1(
11
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"They were great to work with. They did an oil to gas conversion and kept me informed of what was happening. Their customer service was the best I've seen so far. I would hire them again and recommend them to anyone I know."
Installation
Master Plumber / Pipefitter
New Corner Shower unit and plumbing
Biasi B-10 5 section triple pass oil fired boiler
Laars 40 gallon indirect water heater

+14

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
T.A. Comfort Solutions
5.0(
1
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

Approved

In business since 2014

Free estimates

Offers commercial services

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time10 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for H2O Care, LLC
H2O Care, LLC
4.8(
46
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Warren, RI and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"very friendly competent tech, Arrived on time ,Explained everything he was doing. I had used the wrong salt in the system. Advised me on caring for the system. Will continue to upkeep the system with this company. I was very satisfied."
Restaurant Filtration System
Dissolved Iron Problem
Irrigation Filtration System
High Iron & sediment, Elevated Arsenic
Whole Home Reverse Osmosis Purification

+7

Response time1 day
Recommended by91%of homeowners
Avatar for Colonial Water Solutions
Colonial Water Solutions
5.0(
10
)
Water Treatment & Purification System - Install or Replace

Serving Warren, RI and surrounding areas

In business since 2024

Free estimates

Warranties offered

"I highly recommend colonial water solutions! Very reliable and affordable pricing! Dan came out and did an install for us and we could not be more happy! He was very knowledgeable with any questions or concerns we might have! He also followed up to see how we liked our system! If you want great work done, I would definitely reach out to colonial water solutions! Thanks again Dan!"
Response time10 hrs
Response rate100%
8 neighbors recently requested a quote
Showing 1-10 of 27

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