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About

A family legacy built
around water. 

Request a Free Water Analysis                                  Our Story

Proudly serving Northwest Ohio since 1995. 

Our Journey 

A story of innovation, experience, and service. 

From a patented idea to a trusted local name, here’s how we got here. 

1995

It started with a better way to treat water.

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1995 — Full History

In 1995, Larry Kohlenberg founded Larry’s Water Conditioning, or LWC, and developed a chemical-free approach to treating iron and sulfur in water. His work led to patented water-treatment technology that LWC initially supplied to retail water-treatment dealers throughout the country. Closer to home, a smaller number of systems were installed locally, giving the company an opportunity to put the technology to work in real-world water conditions and continue building its experience. The company started with technology. But the knowledge gained from working with water year after year would become just as important.

2000

A second generation joins the business.

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2000 — Full History

In May 2000, Larry’s son, Terry Kohlenberg, joined the company. Terry’s early work included sales and the installation of large commercial water-treatment systems for greenhouses, farms, and other high-volume water users. Those weren’t always simple applications. They required understanding the water, how it was being used, the volume required, and what the customer ultimately needed the water to do. That experience helped shape an approach Iron Pro still uses today: Don’t start by assuming you know the solution. Start by understanding the water.

2012

From water-treatment technology to a local water-treatment company.

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2012 — Full History

LWC originally built much of its business supplying systems through other water-treatment dealers. Over time, that began to change. After the passing of the company’s local dealer, LWC began serving more homeowners and businesses directly in Northwest Ohio. The company was evolving from a supplier of water-treatment technology into a full-service local water-treatment company. There was just one problem. “LWC” wasn’t particularly easy to remember. In 2012, the company worked with local branding professionals and began doing business as IRONpro. The name better reflected one of the problems the company had spent years learning how to solve—and gave customers a name they could actually remember.

2024

A new chapter. The same foundation.

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2024 — Full History

In October 2024, Terry took over the business and reincorporated the company as IRONpro. Technically, today’s Iron Pro is a new company. Practically, it’s the continuation of a water-treatment story that began with Larry in 1995 and has been shaped by decades of solving water problems. The name has changed. The company has evolved. The technology has advanced. But the foundation remains remarkably consistent: Understand what the water is doing. Understand what the customer needs. Then determine the right way to help.

Decades of experience.
A clearer future. 

We’ve spent years working with real water in real homes and businesses. 

That experience helps us ask better questions, find the right solutions, and make the process easier for you. 

OUR PHILOSOPHY 

Understand the water first. Recommend the solution second. 

Every home, every business, and every water source is different. 

We don’t believe in one-size-fits-all solutions. We start by learning about your water, understanding what you want to improve, and then recommending an approach that makes sense.

Ask the right questions.  Test and understand.  Recommend what fits. 

FROM HOMES TO HIGH-VOLUME APPLICATIONS 

Water treatment for real life. 

Our experience goes far beyond one type of water problem. 

We work with homeowners, as well as greenhouses, farms, manufacturers, food and beverage operations, and other commercial customers. 

The scale may change, but our approach doesn’t start with the water, understand what it needs to do, and build the solution around the application.

Residential Solutions                                                     Commercial Solutions 

Meet Terry Kohlenberg 

Nearly three decades of water-treatment experience and still asking questions. 

Terry’s experience ranges from residential water concerns to large commercial systems. 

But experience hasn’t made the process more complicated. It’s made him better at knowing which questions to ask.

Ask Terry About Your Water