ADDON SERVICES, LLC

Addon Services, LLC specializes in commercial and institutional building construction with focused expertise in plumbing, heating, and air-conditioning systems for federal facilities. The contractor delivers turnkey construction and infrastructure upgrades, including the installation and integration of HVAC systems, plumbing networks, and building envelope enhancements tailored to government standards. Their technical proficiency spans code-compliant system design, preventive maintenance planning, and seamless retrofitting of mechanical systems in occupied federal buildings, ensuring minimal operational disruption. A key differentiator is their ability to execute complex, multi-phase projects under blanket purchase agreements and multiple award task order contracts, demonstrating agility in managing long-term, performance-based task orders with stringent compliance requirements. The company maintains a strong relationship with the Department of the Interior, where it has delivered facility modernization projects under MATOC frameworks, supporting mission-critical infrastructure across federal lands and administrative sites. Additionally, it has provided specialized HVAC services to the Department of Defense, specifically at Fort Sill, indicating experience with military installation requirements including durability, energy efficiency, and rapid response maintenance protocols. Addon Services primarily operates within NAICS 236220 (Commercial and Institutional Building Construction) and 238220 (Plumbing, Heating, and Air-Conditioning Contractors), positioning itself as a niche provider of integrated building systems for federal public works. The firm focuses on mission-critical facilities requiring high-reliability mechanical systems and strict adherence to federal construction codes and sustainability benchmarks. As a Women-Owned Small Business and Woman-Owned Business certified contractor based in Plano, Texas, Addon Services leverages its small business status to compete effectively in federal set-aside programs. Its geographic presence supports operations across the continental U.S., with a strategic emphasis on federal infrastructure projects in the South and Southwest regions.