About National Industrial Maintenance


National Industrial Maintenance has been serving the environmental maintenance needs of municipalities, utilities and industrial firms for more than 50 years. Headquartered in East Chicago, Indiana, National Industrial Maintenance, is a wholly owned subsidiary of the Chicago-based Carylon Corporation, the largest and most experienced specialized maintenance contractor in the nation.

National Industrial Maintenance takes the extra steps in training and safety to assure the best solutions for our customers. We are a proud member, in good-standing with ISNetworld, P I C S, and WJTA. We utilize the NCCER curriculum in our in-house safety. In addition we are also TWIC cardholders, and are a US Coast Guard OSRO spill Responder, #158.

Backed by Carylon

National Industrial Maintenance is a part of the Carylon Corporation, the industry-leading national organization of best-in-class regional operating companies that offer specialized services in sewer system maintenance, water supply maintenance and soil/sludge remediation to maintain critical environmental infrastructure.

The origins of Carylon stretch all the way back to 1949. That year, National Power Rodding Corporation – the first of the Carylon Companies – saw a need for better sewer cleaning equipment. As a result, they developed and patented the world’s first heavy-duty “continuous rod” power rodder, an exceptional piece of machinery that proved to be far superior to anything on the market. Soon thereafter, Carylon became the first in the industry to research, develop and successfully use closed-circuit television to inspect sewers. This new method of sewer inspection literally revolutionized the industry and is the basis for the present-day maintenance of the world’s sewer infrastructure.

Today, Carylon’s long heritage of technological advancements, pioneering new processes, and developing specialized equipment is helping municipalities, utilities and industrial companies comply with environmental regulations and meet the growing challenges of environmental infrastructure management.



Training plays an integral role in safety as well as efficiency and productivity to assure we meet all of our customer’s requirements. We utilize a wide range of online video training, hands-on training and classroom training, including the NCCER curriculum.

Personnel receive:

  • 10-30 HR OSHA
  • 40 HR OSHA Refresher
  • CPR, First Aid Training
  • Drug & Alcohol Testing
  • OQ Training
  • API Training


It is the policy of our company to provide and pursue a safe work environment for all employees. We are, and will continue to do everything possible to support this policy. The proper safety equipment for our work is available for the use of our employees. Our management staff, superintendents, and foremen provide the proper training and reinforce the correct usage of our equipment.

The company holds periodic meetings at which safety rules and regulations are discussed and reviewed. In addition, frequent safety toolbox talks are conducted stressing job safety practices and techniques. These meetings concentrate on providing our employees to select the appropriate personal protective equipment and/or safety devices. Our goal for these efforts is to greatly limit the chances of accidents to persons, property, and equipment.

Training includes:

  • Hazardous Communication
  • Confined Space
  • Respiratory Protection/Fit Test
  • Lock Out/Tag Out


  • Fall Protection
  • Personal Protective Equipment
  • Hearing Conservation

Health & Safety Awareness

National Industrial Maintenance recognizes safety as our number one priority in our daily work tasks. We utilize a Behavioral Based Safety method to create an injury-free workplace and promote strong safety culture. Our commitment to training keeps our staff up to date and current with the latest regulations of the industries we service. We require all field personnel to receive the training outlined in OSHA 29CFR1910.120, as well as OQ training and certification enabling them to perform a wide range of tasks in many industries.

Sustainability is our mission

Protecting the environment is baked into the DNA of every Carylon employee. That extends from minimizing the risk of an environmental accident to getting boots on the ground fast in an emergency.

In our role as environmental stewards, Carylon provides vital environmental maintenance services to the majority of municipalities and utilities and to more than half of the Fortune 500 companies throughout the United States.

Today, from locations throughout the United States, Carylon companies offer their customers a full range of the most comprehensive environmental maintenance services available.

Keeping our planet safe

Carylon was there with alternative dewatering and biosolids disposal methods when laws were passed prohibiting dumping sludge in the oceans.

Carylon was there for cleanup operations following the floods in Johnstown, PA, New Orleans and other hard-hit cities.

Carylon was there when a tunnel beneath Chicago’s Loop was breached, causing the flooding of the city’s entire downtown area.

Carylon was there at “Ground Zero” to aid in the massive clean-up following the devastating September 11, 2001 terrorist attack on the World Trade Center.