Keystone Sales & Associates, a leading manufacturers’ representative agency serving the HVAC and plumbing industries, is proud to announce its acquisition of E.J. Dwyer Co., marking another significant milestone in Keystone’s 53-year history. 

This strategic acquisition represents an exciting step forward in Keystone’s continued growth, expanding its plumbing portfolio and strengthening its presence throughout Virginia, Maryland, and Washington, D.C. As part of the acquisition, Keystone will also acquire E.J. Dwyer Co.’s existing facility in Annapolis Junction, Maryland, establishing a physical presence within its Central Region and further enhancing its ability to serve customers and manufacturing partners throughout the territory. 

Founded in 1970, E.J. Dwyer Co. has built a respected reputation within the plumbing industry through its commitment to exceptional service, technical expertise, and longstanding manufacturer relationships. More recently, the company has expanded into the commercial HVAC market through partnerships with commercial boilers, water heaters, and pump manufacturers, creating a natural alignment with Keystone’s existing product portfolio. 

“At Keystone, we’ve always believed that meaningful growth comes from investing in our people, our partnerships, and the customers we serve,” said Bob Della Sala, president and CEO of Keystone Sales & Associates. “The acquisition of E.J. Dwyer represents an exciting opportunity to expand our capabilities while strengthening our presence in a region that is important to our continued success. We’re proud to build upon the relationships and reputation the Dwyer family has established and look forward to what we can accomplish together.” 

For E.J. Dwyer Co., the acquisition marks an exciting new chapter while honoring the legacy and relationships that have defined the organization for more than five decades. 

“Building E.J. Dwyer Co. has been one of the greatest privileges of my life,” said Kathy Dwyer, principal, E.J. Dwyer Co. “I’m incredibly proud of the company we’ve built, the relationships we’ve cultivated, and the dedicated team that has made our success possible. Joining forces with Keystone Sales & Associates marks an exciting new chapter in our story, one that will create opportunities for continued growth, strengthen our partnerships, and allow us to deliver even greater value to the customers and manufacturers we’ve proudly served for so many years.” 

Ned Dwyer, Principal at E.J. Dwyer Co., echoed that sentiment, emphasizing the shared philosophies and longstanding relationships that make the acquisition a natural fit. 

“Our success since 1970 has been built entirely on the dedication of our exceptional associates, our wonderful client partners, and our industry-leading manufacturing relationships,” said Ned Dwyer, principal at E.J. Dwyer Co. “Joining forces with Keystone Sales is a natural evolution. The timing is ideal, and because we share identical philosophies on company culture, customer service excellence, and manufacturer relationships, the future looks incredibly bright.” 

The relationship between Keystone Sales & Associates and E.J. Dwyer Co. extends well beyond this acquisition. In 2021, the two organizations were jointly recognized as Bradley Corporation Co-Reps of the Year, reflecting their collaborative efforts, shared commitment to excellence, and longstanding industry partnership. 

As part of the acquisition, the company will operate as E.J. Dwyer, A Keystone Sales & Associates Company, preserving its established identity while beginning an exciting new chapter under Keystone’s ownership. E.J. Dwyer will continue operating with its existing, fully staffed team, ensuring continuity for customers and manufacturing partners who have come to rely on its industry expertise, trusted relationships, and exceptional service. 

Together, the organizations will focus on expanding product offerings, strengthening technical support, and delivering enhanced service to manufacturers, wholesale distributors, contractors, and engineers throughout the region. 

For Keystone Sales & Associates, this acquisition reflects its continued commitment to strategic growth while remaining grounded in the family-oriented values, integrity, and relationship-driven approach that have defined the company since 1973.