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Water Treatment Companies in Grayslake, IL

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RainSoft of Chicago

100% Satisfaction -- A Rating with Better Business Bureau, Water Purification Treatment Systems - Install, Fully Trained Techs -- Lifetime Equipment Warranty , and 1 more

"Work was explained and I feel I have someone I can call for anything I might need to know in the future"

Patricia M. in July 2017

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4.8(42 Verified Ratings)

Bensenville, IL·

Water Specialties Group, Inc.

Service and Maintenance, Water Testing, Water Treatment System , and 2 more

"The experience beginning with Scott coming out to test the water to Jim installing the water softener tank and reverse osmosis unit was great. They are very professional and informative and the price was just right. I will highly recommend and will refer this company to any family or friends looking to improve their water."

Paula M. in December 2017

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4.2(155 Verified Ratings)

Hudson, OH·

Leaf Home Water Solutions

Water Treatment and Purification, Consultation and On-Site Water Test, White Glove Installation

"They came out right away and gave me an estimate and they were able to install my water softener within the week."

25BC0603CA10B4CAED820D7BBC767B798D3538F9B8A7F77ADA6C8CDBD5C06A61 8. in July 2025

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4.9(22 Verified Ratings)

Libertyville, IL·

Legendary Service

Plumbing, Drain cleaning, Indooor air quality , and 2 more

"Very responsive and offered options for financing. The Legendary Service Team has a thorough understanding of regulations and offers environmentally friendly suggestions for your HVAC needs. They did a furnace/AC replacement in my home. Their scehduling system texts you when they are in route to your home. The install went seamlessly. They kept all work areas covered and clean. I will use them for all future maintenance needs."

Jan O. in October 2022

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4.0(4 Verified Ratings)

Round Lake, IL·

Duane Blanton Plumbing, Sewer & Drainage Inc.

Plumbing, Sewer & Drain

"Job was done quickly"

8A9C1027C64406D89E4714FA2CE161645E7AB7C2BE529DCA0944AFB7F1EE67E3 3. in May 2026

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Grayslake Water Treatment Companies are rated 4.6 out of 5 based on 303 reviews of 303 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.

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Water Treatment Companies in Grayslake, IL

Find local pros

How It Works

Service Pros

RainSoft of Chicago

Water Specialties Group, Inc.

Leaf Home Water Solutions

Legendary Service

Duane Blanton Plumbing, Sewer & Drainage Inc.

Top Water Treatment System Projects

HomeAdvisor Community Rating

Other Top Projects in Your Area

Other Cities in Illinois

Find Water Treatment System Pros in Grayslake, IL

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