top of page

"We shape our buildings; thereafter they shape us."

- Winston Churchill

Arrow Down




Start to finish large and small scale fabrication and steel erection. New builds from the ground up, or retrofit to an existing structure. Contrast MetalWorks is here to provide all of your structural steel needs.


Joist & Decking

Whether it is as part of your structural package, or you're simply looking to hire qualified erectors to install your joist and decking, CMW has you covered. 


Stairs & Railings

Quantity or quality, you can have both. Every stair and railing is treated like a custom project, because it is. Call us for a quote today.



Contrast MetalWorks LLC. is a family owned and operated company that focuses on providing all of our valued customers with high quality structural steel products, competitive prices and incomparable customer service. Our main goal to provide primarily to construction contractors:

  • Fabricated Steel

  • Steel Reinforcement

  • Structural and Miscellaneous Steel Applications

  • Steel Stairs and Railings

At Contrast MetalWorks LLC. we believe that quality service is the most important key to our success. We are committed to superior quality and efficiency in our steel applications at the most competitive prices. Our team has gained an extremely high level of knowledge having over 40 combined years of experience. Contrast MetalWorks LLC. is also committed to being a great neighbor and offering support in the communities in which we operate. We are proud to conduct ourselves with the highest standards; both ethically and socially.

We devote ourselves to deliver the quality and excellence that you want to see in any type of Structural or Non-Structural Steel Application.  




Greg Rosenberger Jr., President & Owner

“We built something from nothing. From starting in a basement in 2009 to buying our property last year, we grew from three brothers doing side jobs to creating a community of workers, setting goals we never dreamed of.”

- Greg R.


Justin Rosenberger, Field Supervisor & Owner

Justin, with a knack for hands-on project management and leadership, supervises the Contrast MetalWorks field crews, day in and day out.


“Our customers tell us they have never seen owners do this.”

- Justin R.


Ben Rosenberger, Vice President & Owner

“We’re a family business. We treat employees like individuals, involve them in the company and recognize their work. Our people are driven. When we have 12 hours of work to do in 8 hours, they rise to the occasion. Their attitude is: ‘This is what has to be done; bring it on!’ ”

- Ben R.


Year Established


Projects Completed


Sq. Foot Fabrication Shop


Year Member









Metallic Texture

Gregory W Hallquist
SVP - Development & Construction
Equinox Management & Construction, LLC

I wanted to drop a quick note to express our appreciation for all of the excellent work you and your team have accomplished for us on our podium projects.

It's been a pleasure having you on our team and reassuring to know that we have structural steel covered on our projects. The fact that we don't have to bid steel is a huge benefit, and your help in optimizing our building structures by working with our structural engineers has proven invaluable.

I don't think either of us realized the amount of volume you'd be performing for us. We have close to $4MM with you on a half a dozen active projects.

Anyway, thanks again to you and your team. You've been a great partner, and we no doubt have great things coming down the road.

Gregory H.

Metallic Texture

Marcus Toconita
Callahan Ward Companies
Partner, Director of Production

As a self-performing development firm, we rely on consistency, communication, and a high level of execution. Contrast Metal Works delivers all three.


As we have grown so has Contrast but their commitment to providing excellent service has always remained the same. 

Marcus T.



first steel bridge

Eads Bridge is the world's first steel-bridge. It was constructed in 1874 in St. Louis. Not only was it the first steel bridge, but also one of the first structures in the United States to use steel as a primary construction component.


eco friendly

Steel is the main material used in delivering renewable energy like solar, hydro, and wind power.


melting point

Few people know that the melting point of steel is 2,750 degrees Fahrenheit.




For any inquiries, questions or commendations, please call: 484-624-5542 or fill out the following form

Contact Us

Thanks for submitting!

Head Office

301 S Keim St, Pottstown

Pennsylvania, 19464

Tel: 484-624-5542


To apply for a job with Contrast MetalWorks LLC, please submit a form via the Careers page, and send a cover letter together with your C.V. to:

Get a quote: 484-624-5542

bottom of page