About us

Eau Claire City Courthouse building
ground perspective view looking up a building with many windows.


Murfin Commercial Building Products, based in Sandusky, Ohio, saw the need for a company that could provide a complete exterior offering. The company, named after Josh Cullen’s twin daughters, Murphy and Finley, was founded in 2021 after Josh had spent years in the commercial construction industry, primarily in the Washington DC area. There, he walked job sites of large commercial projects for Hilti and developed an understanding of the construction process. Debbi and John joined the team, and together, they bring 30+ years of construction experience. In an effort to bring value to their customers, Murfin has selectively added product manufacturers that complement each other and service the entire exterior of commercial construction projects.

sq ft of façade

customer retention rate



Josh Cullen


Debbi Hurst


John Gryshuk

Inside Sales

Josh Cullen, President

Josh Cullen, president of MCBP, provides 20 years of experience in various aspects of commercial design, with a recent focus in architectural design. With a BA in Business from Ohio University, Josh has spent two decades growing his understanding of the construction industry and his relationships with representatives of nearly every trade. His well-rounded understanding of commercial construction, paired with his passion for problem solving, has allowed him to bring value to every customer through an application-based approach and ability to turn technical information into logical installation methods.

Debbi Hurst, Sales

Debbi Hurst, inside sales representative for MCBP, has a passion for seeing projects through from start to finish. With a BA of Business Administration, paired with 20+ years of sales and professional experience, Debbi is exceptional at communicating details of product offerings and continuing to partner with businesses through the installation process. She is committed to being not just a sales representative, but a true business partner.

John Gryshuk, Inside Sales

John brings with him 20+ years of experience in customer service, supply chain, and eCommerce. With a Business Administration degree from Kent State University, John specializes in responding to customer needs and working as a partner with you to develop future projects in the architectural community. John’s passion for assisting customers and solving problems adds perfectly to the Murfin team, who focuses application-based knowledge and ability to streamline your processes.