J&B HARTIGAN, INC.

J&B Hartigan, Inc. specializes in the installation, maintenance, and repair of critical building systems for federal facilities, with deep expertise in HVAC, electrical, and mechanical infrastructure. The company delivers comprehensive climate control solutions, including chiller rebuilds, AHU replacements, ductwork installations, and preventive maintenance for complex heating, ventilation, and air conditioning systems. Their technical capabilities extend to electrical system servicing—such as breaker testing, replacement, and CATV system upgrades—as well as emergency plumbing repairs and temporary equipment rental for mission-critical operations. They also provide precision maintenance for electronic and industrial equipment, demonstrating a cross-disciplinary ability to support facility-wide operational continuity in high-stakes environments. The contractor maintains a strong, consistent relationship with the Department of Veterans Affairs, where they routinely perform facility infrastructure upgrades and emergency repairs across VA medical centers. Their work supports the VA’s mission to sustain safe, reliable, and compliant healthcare environments through timely, high-quality mechanical and electrical interventions. While they have completed work for other agencies including the Department of Commerce, Transportation, and GSA, the overwhelming majority of their performance history reflects a dedicated partnership with the VA. J&B Hartigan’s primary industry focus lies in plumbing, heating, and air-conditioning contracting, with complementary capabilities in electrical wiring, equipment repair, and facility support services. They position themselves as a responsive, multi-trade contractor capable of managing integrated building systems, particularly in aging federal infrastructure where reliability and regulatory compliance are paramount. As a Service-Disabled Veteran-Owned Business headquartered in Carrollton, Virginia, the company leverages its 2L entity structure to deliver agile, mission-aligned solutions. Their SDVOB certification underscores a commitment to service and accountability, reinforcing trust with federal clients seeking certified small business partners for critical infrastructure support.