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

Avatar for Springsoft International, Inc.
Springsoft International, Inc.
4.8(
145
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Crystal Lake, IL and surrounding areas

Approved

In business since 1960

Free estimates

Warranties offered

"Highly Recommend Springsoft! I was scheduled for an appointment to repair my water softener with Springsoft. Al, the rep for the company called me to verify that a service tech was needed. He coached me through a couple of practical steps to try on my own. The issue was resolved. No charge! What company does this? Amazing. Thanks Al. How generous."
Chemical Feed and Water Softener
RO & Twin Alt Softener
Standard Reverse Osmosis & Water Softener, Pex
St Charles IL, photo 1
St Charles IL, Photo 2

+14

Response time5 hrs
Response rate90%
Recommended by98%of homeowners
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 Crystal 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

+169

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 Crystal Lake, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Good honest service! Frank worked on setting up my fridge water/ ice and was super quick also knowledgeable and friendly! I would highly recommend them! Great service, Frank went above and beyond!"
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 Crystal 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.

76 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Water Specialties Group, Inc.
Water Specialties Group, Inc.
4.3(
52
)
Water Treatment & Purification System - Install or Replace

Serving Crystal Lake, IL and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"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."
Response time2 days
4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for BOESCHE PLUMBING LLC
BOESCHE PLUMBING LLC
4.8(
47
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Crystal Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Ryans team replaced PVC from the well tank to the Water Conditioning System, removed an unnecessary bypass manifold, and replaced the treated water to the Kitchen. The drinking water osmosis tank was relocated and connected to the refridgerator water/ice dispensers. Drain pipe from kitchen to septic system was replaced. More room, via better placement of components and some 'heads up' regarding our newer Hot water heater. Super clead and effecient ! I highly recommend BOESCHE Plumbing !"
Response time4 hrs
Response rate89%
3 neighbors recently requested a quote
Avatar for Cosmic Plumbing LLC
Cosmic Plumbing LLC
5.0(
16
)
Water Treatment & Purification System - Install or Replace

Serving Crystal Lake, IL and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"We had our ejector pit pump go out, had a few people recommend Cosmic plumbing. Called and within 2 hours they had the pump back up and running! Can’t thank Chad enough for getting it fixed so fast. Could have been a disaster. Competitive pricing. Highly recommend!"
4 neighbors recently requested a quote
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