MELLOR CONTRACTING & SUPPLY, LLC

Mellor Contracting & Supply, LLC specializes in the design, installation, repair, and maintenance of complex heating, ventilation, air conditioning, and plumbing systems for mission-critical federal facilities. Their technical expertise spans boiler replacement and control system upgrades, HVAC component installation—including ceiling cassettes, condensers, heat pumps, and 3-way valves—backflow prevention surveys, and full-scale mechanical system overhauls for industrial and institutional environments. The contractor demonstrates deep proficiency in maintaining operational continuity under strict military standards, delivering precision work on sensitive infrastructure such as control rooms, hangars, and annexes, often requiring compliance with DoD environmental and safety protocols. The company’s primary client is the Department of Defense, where they consistently execute high-priority mechanical infrastructure projects across multiple installations. Their work supports facility readiness by ensuring reliable thermal control, air quality, and water system integrity for barracks, maintenance facilities, and operational hubs. Each project reflects an understanding of military-grade specifications, including rapid response requirements, phased execution in active environments, and integration with existing building automation systems. Mellor’s core industry focus is in NAICS 238220—Plumbing, Heating, and Air-Conditioning Contractors—where they serve as a trusted provider of integrated mechanical systems for defense and federal infrastructure. Their specialization lies in retrofitting aging HVAC infrastructure with modern, energy-efficient components while maintaining compliance with federal building codes and sustainability mandates. This positions them as a niche contractor for legacy facility modernization within the defense sector. As a Women-Owned Small Business certified under the SBA’s 8(a) program and recognized as a Woman-Owned Business, Mellor Contracting & Supply operates from its base in Ambler, Pennsylvania, serving federal clients nationwide with a focus on agile, responsive service delivery. Their certification enhances their ability to compete for set-aside contracts while reinforcing a commitment to diversity and small business participation in federal contracting.