APR Supply Co., a fourth-generation, family-owned plumbing and HVAC distributor now in its 103rd year of business, has announced that it has entered the due diligence phase to acquire McArdle & Walsh Inc., a respected supplier of plumbing, heating, and industrial products serving contractors across the Greater Baltimore region for more than a century.

Founded in 1922, McArdle & Walsh has earned a strong reputation for deep industry knowledge, reliable service, and long-standing customer relationships. The proposed acquisition would unite two legacy organizations that share a commitment to exceptional customer experience, product expertise, and continuous investment in the trades.

The potential addition of McArdle & Walsh supports APR Supply Co.’s strategic expansion into Maryland. With an existing footprint of more than 42 locations across Pennsylvania, New Jersey, and Delaware, bringing McArdle & Walsh into the APR network would increase inventory availability, expand product breadth, and enhance local support for contractors in the Baltimore market.

"We are excited about the opportunity to bring McArdle & Walsh into the APR family,” said Scott Weaver, CEO of APR Supply Co. “Their long-standing commitment to the trades, paired with a strong reputation in the Baltimore market, aligns perfectly with our vision for growth. Together, we’ll build on both organizations’ strengths to better serve the needs of professional contractors for decades to come.”

Together, the two companies represent more than 200 years of service to the industry. During due diligence, APR’s focus will remain on ensuring continuity for McArdle & Walsh customers and teammates while preparing for an integration that strengthens service, support, and logistical efficiency.