Madden Plumbing & Hvac Inc.

Madden Plumbing & HVAC Inc., a small business contractor based in Beltsville, Maryland, delivers HVAC system replacement, maintenance, and emergency repair services to federal civilian agencies as a prime contractor (67% of recent awards) and as a subcontractor on facility maintenance work. The company is a for-profit Subchapter S corporation operating under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors) and competes under total small business set-asides on a portion of its work, with mixed set-aside posture across the prime footprint — some awards carry total small business designations, others are full-and-open.

Madden's customer concentration is highly concentrated within the Department of the Interior. The Fish and Wildlife Service Region 5 accounts for $198 thousand of the $260 thousand combined potential value across all awards, with the broader Fish and Wildlife Service adding another $62 thousand. The Department of Labor Office of the Assistant Secretary for Administration and Management rounds out the three customer agencies in the recent portfolio. All three ranking blocks (awards by count and by potential value) converge on the same concentration pattern — Region 5 dominates both volume and dollars. Concrete prime work includes a $194,920 total-small-business HVAC system replacement at the Patuxent Research Refuge Service Building #109 (awarded September 2024, completed May 2025), a $58,801 total-small-business HVAC unit replacement at the same refuge (awarded September 2024), and a $3,230 full-and-open thermostat replacement at Patuxent Quarters 49 (awarded February 2026, scheduled completion April 2026). The company places task orders under a Multiple Award Schedule vehicle (2 orders identified) and subcontracts plumbing and HVAC maintenance work to Trademasters Service, Inc. on Department of Labor facilities maintenance BPA calls.

Activity is modest and recent. The vendor recorded three awards in 2024, one in 2025, and two in 2026, with combined obligated dollars ($327 thousand) slightly exceeding the combined potential-value ceiling ($260 thousand), indicating cost growth or scope expansion on awarded work. The vendor's footprint is limited to a single geographic anchor — the Patuxent National Wildlife Refuge in Laurel, Maryland — where it has completed multiple HVAC projects totaling approximately $257 thousand across prior awards and demonstrates an established relationship with Region 5 for facility infrastructure support.