Founded in 1971, Maddock Industries serves mechanical, and plumbing (MEP) engineers, mechanical contractors, distributors, and building owners. Maddock will help you specify, source, implement, and maintain hydronics equipment used in high-rises, schools, universities, hospitals, government facilities, food processing plants, and other large buildings.

Hydronics equipment represented by Maddock Industries includes Armstrong pumps, RBI boilers and water heaters, Danfoss control valves, Whalen Heat Pumps, Spirotherm, and more.

Hydronics Equipment Specification & Support

The Maddock Industries team of deeply experienced sales engineers call on customers throughout Chicago and Illinois as well as Northwest Indiana. We serve other customers throughout the US and Canada from our online store. How we support you:


Tap into 50 years of hydronics experience to identify the right equipment for your commercial construction projects.


Let us supply your hydronics equipment and the expertise to prevent problems and callbacks, quickly resolve issues, and increase your profitability.


Count on us to supply you with some of the best products in the hydronics industry with concierge-level customer service.

Building Owners

Partner with us to increase your building’s heating and cooling efficiency, reduce maintenance costs, and improve air quality.


I have been working with Maddock Industries for over a decade and can honestly say they are one of the best Rep firms in the area. We work with them on as many of our projects as possible. We trust them to provide superior products and services on our jobs.

Chief of Operations
Monaco Mechanical

Maddock Industries has always been a professional, reliable and honest company to work with. They have backed up their products by ensuring they perform properly at my jobs. They do not consider the job complete until everything is working as specified.

MOER Technologies, Inc.

Maddock Industries is heavily involved in our business, and we rely on their support for a significant number of the hydronic products they represent. We often package their pumps, boilers, and heat pumps on projects we are awarded.

Heatmasters Mechanical, Inc.

We have a very good relationship with Maddock Industries and regularly recommend the products they represent.

Associate Principal

We have a really good relationship with Maddock Industries. They represent a strong product line and we really like our main contact. They are very responsive with updates, leadtimes and pricing, and are always there to get us the information we need.

VP of Sales & Engineering
Premier Mechanical, Inc. (PMI)

Maddock Industries is a stellar group to work with.

Executive VP
Edwards Engineering, Inc.

Contact us to learn more about vertical inline pumps