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Top-Rated Water treatment pros in Island Lake - Updated Nov 2026

Avatar for Pure Flo H20
Pure Flo H20
4.9(
53
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Island Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1991

Free estimates

Emergency services offered

"Good customer service!!!! I called them Christmas eve because our water softener gave up. Chris answered right away and walk me through so we can have our water back. Really appreciate the quick response and the work they’ve done. Very thorough and detailed explaining the issues we had and gave us tips on how to care for the new system they installed. Worked with us also paying for the whole system."
Pro series softener
Water filtration
Water treatment system
Water treatment systems
Reverse osmosis, system

+8

Response time4 hrs
Response rate100%
50 neighbors recently requested a quote
Avatar for Aqua Knight Plumbing Co.
Aqua Knight Plumbing Co.
5.0(
16
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Island Lake, IL and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

With 24 years of experience we are dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your plumbing needs. We specialize in a variety of residential and commercial services from water heater installations, sewer main installations, sump pump installations, repairs and so much more! We take pride in the attention to detail put into each of the projects \nwere involved with. Were 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. \n \nAll Work Is Warrantied - Inquire Within \n \nMilitary Veteran and First Responders Discounts Available - Inquire Within \n \nDeposits May Be Required - Inquire Within \n \nAccepts Cash, Checks & Major Credit Cards \n \nFinancing Options Are Available - Inquire Within \n \n24/7 Emergency Services Available \n \naquaknightplumbing.com

New Sump Pit
Outside Clean Out
Outside Clean Out
March 2026
July Clog Log

+173

5 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for Legendary Service
Legendary Service
5.0(
27
)
Water Treatment & Purification System - Repair or Service

Serving Island Lake, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I just won a beautiful water heater from Legendary Service, and they were amazing. The installation was quick, easy, and clean. The owners came down personally to make sure everything went smoothly. Very nice people and I would definitely go to them for all my plumbing and heating needs!"
Reclaimed Mechanical Room
Reclaimed Mechanical Room
Response time2 days
6 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Leaf Home Water Solutions- Milwaukee
Leaf Home Water Solutions- Milwaukee
4.1(
197
)
Water Treatment & Purification System - Install or Replace

Serving Island Lake, IL and surrounding areas

Approved (Corporate)

In business since 2020

Credit card accepted

Offers commercial services

Leaf Home Water Solutions provides best-in-class water filtration and softener products for healthy, purified water that protects both the home and family. With state-of-the-art water testing materials, dedication to White Glove installation and service, best-in-class products, and the support of the nation's largest home solutions company, homeowners can feel confident choosing Leaf Home Water Solutions. Since all installations are tailored to specific water needs, custom solutions may include enhanced impact on hair and skin, energy savings on bills, increased appliance longevity, and elimination of hard water contaminants like calcium and magnesium, while also combatting taste and odor issues by filtering out chlorine and other organic compounds. The team of professionals at Leaf Home Water Solutions takes great pride in knowing that families are provided with the cleanest, crispest, and heathiest water possible.

82 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Cosmic Plumbing LLC
Cosmic Plumbing LLC
5.0(
16
)
Water Treatment & Purification System - Install or Replace

Serving Island Lake, IL and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Chad from Cosmic Plumbing did a great job communicating throughout the process. He came in and diagnosed the situation, explained it to me, and suggested how he was planning to resolve the issue. He then did the work and in less than 30 minutes he was done. The price seem fair and I would definitely hire him again."
4 neighbors recently requested a quote
Avatar for RainSoft of Chicago
RainSoft of Chicago
3.8(
18
)
Water Treatment & Purification System - Install or Replace

Serving Island Lake, IL and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"You have to know going into this that their first price is not their final price. At the end we were saying could've we gotten a better price. If that type of negotiation bothers you don't call this company. What they sell is top notch, we are very happy with the water quality now."
Clean Start
EC5
Air Master
Response time1 day
Response rate97%
Recommended by100%of homeowners
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