NBW Inc.

NBW, formerly known as National Boiler Works, has been a family owned and operated Industrial Mechanical Contractor since 1935. Today it is operated by third and fourth generation owners that embody the values that NBW was founded on.

Since then, our quality workmanship, safety standards, and industry experience have positioned us as leaders in our field.


Our Services


NBW is the leading contractor in the commercial and industrial boiler market.

Whether it is a repair, retrofit, new installation or annual maintenance NBW has your back.

Our experienced team at NBW can provide you with the solutions you need when you need them. We focus on safety, quality, and efficiency.

Mechanical Piping

The Mechanical Construction Division at NBW has been providing the highest quality mechanical construction services for decades.

Our crew is fully trained in proven techniques and equipped with the latest technology.

We work on a variety of mechanical construction projects within the industrial, institutional and commercial marketplaces.


Trust and teamwork are the keystones of our design/build method.

From the initial design, building, and installation, to the final budget, our design team works together to ensure a quality project.

Pressure Vessels

We put safety at the forefront of all of the work that we perform.

NBW carries the ASME Code symbols “S” and “U”, as well as the National Board of Boiler and Pressure Vessel Inspectors “R” and “NB” Stamps.

Heat Exchangers/Condensers

NBW specializes in the repair, retube, testing, inspecting and installation of all heat exchangers and condensers.

Often the tubes begin to leak over time and the customer is left with a difficult choice. Do they repair or do they replace? This is where NBW has the experience and the knowledge to help.

Boiler System Controls and Monitoring

From the equipment management system to the combustion control system, as well as integrating these systems into a plant’s monitoring network, NBW can accomplish any goal by coordinating and implementing a plan that meets the customer’s needs and wants.

Plant Maintenance

We work with you to develop innovative strategies and customized programs that work best for your business — to reduce downtime, minimize costs, and increase efficiency.

Rental Boilers

At NBW, we specialize in boiler rentals. It's been our passion to provide state-of-the-art boiler room technology and unequaled customer service and support to our boiler rental customers for over sixty years.


Our knowledgeable crews across Ohio and the USA have established safety procedures for all types of refractory products. These procedures will ensure a long life for your refractory.


NBW will plan and execute your rigging, moving and transport efficiently and effectively, while keeping the customer informed every step of the way. We specialize in the transportation and rigging of boilers, tanks, Industrial machines and components, piping, stacks, ducting, and structural steel.

NBW Core Values

Our core values guide us through every project and every interaction. Because of this, 90% of our revenue comes from repeat customers that trust NBW to get the job done right every time.

  • Quality

  • Service

  • Safety

  • Trust

  • Experience

  • Family

Proud to serve the following industries

Chemical Icon in White - NBW Inc.


Petrolium Icon - NBW Inc.


Rubber/Tire - NBW Inc.

Rubber & Tire

Grain - NBW Inc.

Grain Processors

Steel - NBW Inc.


Chemical Icon in White - NBW Inc.

Coke Producers

Hospitals - NBW Inc.


Universities - NBW Inc.

Universities & Schools

Food - NBW Inc.

Food Processors

Pulp and Paper - NBW Inc.

Pulp & Paper

Power Generation - NBW Inc.

Power Generation

Salt - NBW Inc.

Salt Production

Why Do People Choose NBW?

Customer First

We always put customers first

Family Owned

Family owned means family values

Never cut corners

We will never give up or cut corners


We have the grit to get through even the toughest/most challenging jobs

We make sure it's right

Others will install/repair your equipment, NBW will make sure it works right

When you need us, we will be there.

The solutions you need, exactly when you need them. Call us today and learn how we can help you overcome any challenge.

Timely response to our customers' emergency needs is always our priority. Prompt response and 24-hour support personnel means minimal down time and reduced collateral loss. We maintain a modern fleet of fully outfitted service trucks prepared to meet any challenges an emergency brings.