For prompt assistance, call 1-847-487-9110 during business hours or click here


Industrial water services company serving the Chicago area since 1989.

We are a leading specialty chemical manufacturer and service provider.
We make water work better.

We proactively treat your water to prevent scaling, fowling, corrosion, microbiological activity – all to reduce water and energy consumption, lower utility costs, extend equipment life, and measurably improve your overall operation.

Gehrke Customer Stories

Excellent service by Gehrke to reduce our campus and buildings operating cost. Their WETSS (Water Energy Treatment Saving System) is a gamechanger. Everyone should add this to their closed loop systems, heating or chilled!

Mr. J. Murray, Director of Buildings and Grounds at a Northeastern Illinois University

Great company! We use Gehrke as part of our project evaluation team for new customers and jobs. We value their insight and guidance in water-related issues from Legionella management to HVAC operation. Water is crucial to our customer and Gehrke is our partner!”

Mr. D. Kutrumanes, President of GNP, Chicago based property management company

Water is an essential part to all our food processing activities. Water effects our total bottom- line costs, production capacity, and labor. We trust Gehrke to protect all our water systems from cooling to waste water.“

Mr. J. Juricek, VP of Engineering, Chicago based food plant

Let us show you how we can improve your operations and lower your costs. Click the button to contact us about scheduling your free Gehrke Water Analysis.

Industries We Serve

We bring deep operations and water treatment expertise to the following customer profiles:


Hospitals and
healthcare facilities

Colleges and





Since opening our doors in 1989, we’ve accumulated a wealth of industry-specific operations knowledge. To find out what we know about your business, click the button below or call 847-487-9110.

Get a GehrkeGuy™

When you hire Gehrke, you get a dedicated GehrkeGuy™. An HVAC and manufacturing process water expert who proactively finds ways to make your water work better. Your GehrkeGuy takes responsibility for your water so you can focus on your business. And maybe sleep a little better at night, too. 

To get your GehrkeGuy, get started today.

Start with a Free Gehrke
Water Analysis

Would you like to see how we can improve your operations while lowering your costs? At no cost to you, we’ll perform an in-depth assessment of your operations and present our findings to you in a concise report. Click the button below to contact us about scheduling your free Gehrke Water Analysis today.