Capitol Boiler Works Inc.

Capitol Boiler Works Inc., a Virginia-based HVAC and mechanical systems contractor, delivers boiler maintenance, repair, installation, and facility infrastructure services to federal agencies as a prime contractor on firm fixed-price purchase orders, competing exclusively in full-and-open procurements with no set-aside designations. The company operates as a for-profit limited liability corporation headquartered in Springfield, Virginia, and has held federal contracts since at least 2001, with activity spanning 184 total awards across four decades.

Capitol Boiler Works' capability footprint centers on boiler systems — tube repairs, steam boiler feed water pump replacements, boiler control installation, and preventive maintenance — alongside broader HVAC and mechanical infrastructure work including chilled water coil and pump replacements, air handling unit service, mini-split heat pump installation, and emergency facility maintenance. Recent representative prime work includes a $135,755 steam boiler project awarded by the Federal Correctional Complex Petersburg in January 2026 (ultimate completion September 2026), a $71,685 boiler controls installation at the same facility (February 2026, completion September 2026), and a $25,510 chilled water pump replacement at the Smithsonian Institution's Museum Support Center in Suitland, Maryland (July 2025, completion December 2025). The source characterizes the company as carrying two decades of federal contracting experience and describes its previous work encompassing boiler tube repairs, steam system interventions, and facility modernization projects across correctional and institutional facilities.

Customer concentration is bifurcated by volume and dollars. By award count, the Smithsonian Institution leads with 25 awards ($443 thousand combined potential value), followed by the Department of the Navy (15 awards), the Federal Correctional Complex Petersburg (14 awards), the General Services Administration Public Buildings Service (10 awards), and the Department of the Army (9 awards) — together accounting for 40% of all awards. By potential value, the Federal Correctional Complex Petersburg dominates at $677 thousand across 14 awards, followed by the Smithsonian Institution at $443 thousand and the Drug Enforcement Administration at $243 thousand. The divergence reflects Capitol Boiler Works' business model of small, recurring maintenance and repair work to a broad federal facility and infrastructure customer base rather than large program awards.

Capitol Boiler Works sits on the GSA Multiple Award Schedule (4 task orders) and operates under several indefinite-delivery contracts, including Navy IDC N6247781C2038 (3 task orders) and Army IDCs DAAD0582C6155, DAAD0583C6155, and DACA3185C0310 (1 task order each). The vendor's NAICS footprint is concentrated in plumbing, heating, and air-conditioning contracting (112 awards) with secondary exposure to electrical contracting and site preparation. Primary PSC coding reflects industrial boiler work (25 awards) and maintenance and repair of plumbing and heating equipment (27 awards).

Activity has grown modestly in recent years — two awards in 2020 and 2021, two in 2022, five in 2025, and eight in 2026 — with combined obligated dollars ($4.8 million) exceeding combined potential value ($3.3 million) by 45%, indicating execution velocity against standing task orders and IDCs. Capitol Boiler Works maintains a minimal subcontract footprint, subcontracting to Emcor Government Services, Inc. for annual boiler preventive maintenance at the Federal Bureau of Investigations Central Records Complex in Winchester, Virginia (awards in March 2025 and August 2025 under contract 47PN0324F0009).