C & S Building Services Inc.

C & S Building Services Inc., a small business based in Amityville, New York, operates as a full-and-open prime contractor providing mechanical operations and maintenance services for federal facilities, with no subcontract footprint. The vendor is a for-profit Subchapter S corporation competing across non-set-aside awards exclusively; all 63 awards in the source data carry no small business set-aside designation. C & S Building Services Inc. does not hold any WOSB, SDVOSB, HUBZone, or 8(a) certifications.

Customer concentration is extreme and deliberate. The Department of the Interior National Park Service Northeast Region accounts for 33 of 43 awards shown in recent awards listings (68% of the portfolio by count) and $82.2 million of the combined potential value — a concentration that reflects C & S Building Services Inc.'s sustained engagement as the mechanical operations and maintenance contractor for the Statue of Liberty National Monument and Ellis Island. The source documents a prior 5-year, $24 million utilities operations and maintenance contract for these facilities and shows a pattern of successive definitive and bridge contracts issued at regular intervals, typically valued between $396 thousand and $759 thousand per award, running since at least 2021. The vendor also holds minor awards from the National Park Service National Office ($1.2 million combined potential value) and a single $254 thousand contract from the U.S. Coast Guard; these three agencies account for 90% of combined potential value across the portfolio.

C & S Building Services Inc.'s capability portfolio centers on HVAC building management system operations, facility mechanical infrastructure support, and comprehensive facility maintenance at federally managed installations. Representative work includes a $692 thousand definitive contract (awarded May 6, 2026) for STLI mechanical operations and maintenance services at the Statue of Liberty National Monument and Ellis Island; a $759 thousand definitive contract (awarded January 30, 2026) for the same scope at the same location; and a $599 thousand 1.5-month bridge contract (awarded December 12, 2025) for mechanical operations and maintenance services with special events coordination. The work is characterized by firm fixed-price arrangements, short to medium contract durations (bridge periods of 1.5 months to full-year periods), and place of performance at Staten Island, New York and Jersey City, New Jersey. Category concentration aligns: the top NAICS codes are Plumbing, Heating, and Air-Conditioning Contractors (25 awards) and Facilities Support Services (14 awards); the top PSC code is Housekeeping–Facilities Operations Support (35 awards).

Activity has been episodic. The vendor shows one award in 2020, two in 2021, three in 2024, seven in 2025, and three year-to-date in 2026. The combined potential value across all 63 awards is $92.5 million, with $73.8 million obligated (80% realization rate). The vendor does not sit on any GWACs, agency-wide IDIQs, or multi-agency vehicles; two indefinite delivery contracts (C1940020001 with 17 task orders and INP08PC75167 with 15 task orders) carry a combined potential value of only $1.3 million, indicating these are low-value task-order pools supporting the Statue of Liberty facility operations. The vendor operates with zero subcontract leverage — 100% of awards are primes.

C&S provides multidisciplinary outsourced facility and property related services consisting of management-service maintenance agreements-facility staffing-project and construction management-general contracting-HVAC and mechanical contracting.