Central Furnace Supply Company

Based in suburban Chicago, Illinois, Central Furnace Supply, Inc. (“CFS”) is a trusted wholesale distributor of heating, ventilation, and air conditioning (HVAC) products serving contractors and builders across northern Illinois and southern Wisconsin. Founded in 1957, the family-owned Company has built a strong regional presence over nearly seven decades through deep industry expertise, long-standing relationships with manufacturers, and a responsive, service-oriented culture. CFS distributes products for several globally recognized HVAC manufacturers, including certain exclusive sales and marketing relationships. Supported by a 50,000-square-foot warehouse and dedicated delivery fleet, the Company provides reliable daily distribution throughout its regional market.

Promontory was introduced to the Company’s third-generation family ownership in June 2025 as shareholders sought to address succession planning, ownership transition, and shareholder liquidity objectives. Christopher Riegg of Promontory led the execution of a structured and confidential transaction process, including preparation of marketing materials, targeted outreach to strategic and financial buyers, and coordination of the sale of both the operating business and the separately owned real estate facility. Following a competitive process involving multiple interested parties, WSM Industries, a portfolio company of Maple Hill Capital, was selected as the preferred partner for the Company’s next phase of growth. Founded more than 100 years ago, WSM is a manufacturer and distributor of sheet metal and related HVAC products serving mechanical contractors across the Midwest. The sale of Central Furnace Supply and the separately owned operating facility was completed in January 2026, concluding a comprehensive succession and ownership transition for the Company’s shareholders. Christopher Riegg of Promontory led the entire transaction process, delivering a successful outcome in less than eight months and positioning the Company for continued growth as part of WSM Industries. Client Reference Letter