Diablo Boiler & Steam Inc.

Diablo Boiler & Steam Inc., operating as Diablo Boiler, is a self-certified small disadvantaged business providing boiler operation staffing, steam plant maintenance, and plumbing and heating system repair to federal agencies as a prime contractor (98% of recent awards). The firm is headquartered in Antioch, California, and competes in full-and-open procurements with no set-aside category designation recurrent across its footprint.

Diablo Boiler's capability portfolio centers on emergency and routine maintenance of steam plants, boilers, heating systems, and associated infrastructure at federal facilities. Representative work includes a $70 thousand emergency boiler operator staffing purchase order to Veterans Integrated Service Network 21 at the Palo Alto VA facility (awarded August 26, 2026, completing January 8, 2027); a $20.6 thousand repair contract with the same agency to restore blowdown lines at the Livermore VA Medical Center (April 2026); and a subcontracted tubing replacement at the Ryan Boiler Room in Building 15 of a General Services Administration facility at Menlo Park, California, under prime CMI Management LLC (August 2023). NAICS positioning skews heavily toward plumbing, heating, and air-conditioning contracting (19 awards) with secondary exposure in commercial and industrial machinery repair (3 awards).

Customer concentration is modest but tilted toward two agencies. The Department of Homeland Security U.S. Coast Guard accounts for 16 awards and $150 thousand of combined potential value; the Department of Veterans Affairs Veterans Health Administration Veterans Integrated Service Network 21 holds 7 awards and $134 thousand combined potential value. Together these two anchor 79% of recent award count and 88% of combined potential value. Social Security Administration, General Services Administration Public Buildings Service, and the Department of the Navy complete the customer roster. Diablo Boiler holds placement on the GSA Multiple Award Schedule with 2 task orders, though the bulk of its work flows through direct purchase orders rather than IDVs or vehicles. Activity has been sparse and episodic — one award in 2021, one in 2023, two in 2026 — with combined potential value across all forty-two awards (from 1989 forward) standing at $414 thousand against combined obligated dollars of $670 thousand. One award ($70 thousand) faces recompete within the next twenty-four months. Sub engagement is minimal; the vendor subcontracts rarely and sits below prime contractors rather than anchoring its own team structure.