GENERAL AND MECHANICAL SERVICES, LLC

GENERAL AND MECHANICAL SERVICES, LLC specializes in the installation, maintenance, and repair of critical mechanical systems for federal facilities, with deep expertise in plumbing, heating, ventilation, and air conditioning (HVAC) infrastructure. The contractor delivers precision services including chiller valve replacements, steam isolation and bypass gasket installations, sanitary waste and vent piping upgrades, cooling tower installations, and preventive maintenance for high-reliability systems such as Liebert cooling units in data centers. Their technical proficiency extends to complex building automation systems, air handling unit replacements, and valve refurbishments in mission-critical environments, demonstrating a strong command of ASME, ASHRAE, and OSHA-compliant practices. Their ability to execute time-sensitive, high-stakes repairs in sensitive facilities—such as vivariums and federal data centers—sets them apart as a trusted provider for mission-critical mechanical systems. The contractor maintains consistent engagement with the Department of Health and Human Services, delivering HVAC and plumbing upgrades across laboratory and clinical facilities, while also serving the Department of Justice, Department of Commerce, and Department of the Treasury with similar mechanical infrastructure support. Their work for these agencies often involves maintaining operational continuity in buildings with stringent environmental controls, indicating a proven ability to operate under strict regulatory and security protocols. Their primary focus is on NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), with complementary work in facilities support services under NAICS 561210, which includes scheduled maintenance and system reliability programs. This positions them as a specialized mechanical systems integrator for federal buildings requiring continuous climate control and water system integrity. Headquartered in Annapolis, Maryland, GENERAL AND MECHANICAL SERVICES, LLC operates as a small business under the 2L entity structure. While no formal government certifications are listed, their consistent performance across high-security federal sites underscores a reliable, compliant, and technically proficient operational profile.