M & M Welding & Fabricators Inc.

M & M Welding & Fabricators Inc., a minority-owned and woman-owned small business based in Mt. Airy, Maryland, provides mechanical, welding, and fabrication services to federal agencies as a prime contractor (88% of recent awards) and subcontractor, with deep specialization in steam distribution systems, boiler maintenance, HVAC infrastructure, and utility plant repairs across civilian and defense facilities in the Washington, D.C. metropolitan area. The company is a Subchapter S corporation competing predominantly under full-and-open designations, though it holds recurring awards under Total Small Business and Woman-Owned Small Business Sole Source set-asides.

M & M Welding's customer footprint is heavily concentrated in the National Capital Region. The General Services Administration Public Buildings Service National Capital Region anchors the portfolio, accounting for 68 awards with $399.9 million combined potential value—roughly 96% of the vendor's total addressable value. The top five customers by award count (GSA PBS, GSA PBS NCR, Department of the Army, Department of the Navy, and Department of Labor) represent 57% of recent awards and drive virtually all dollars. This concentration reflects the vendor's primary role supporting federal facilities management and steam infrastructure in Washington, D.C. The vendor holds a $10.5 million indefinite delivery contract with GSA Public Buildings Service National Capital Region for steam plant and distribution system repairs that has anchored multiple $500 thousand task orders for steam tunnel cleaning, repair, and maintenance work at Heating, Operations and Transmission Division (HOTD) facilities from 2021 through 2025. Recent representative prime work includes a $2.89 million firm fixed-price purchase order for mechanical room chilled water upgrades, a $574 thousand building chiller replacement for the Defense Logistics Agency's Engineering and Inventory Disposition facility in Westlake, Maryland, a $192 thousand HVAC installation for Naval Sea Systems Command's B31 TUBA project, a $169 thousand boiler repair and welding contract with NIST for the Central Utility Plant, and a $67 thousand steam manhole ventilation trailer for NIST's Gaithersburg campus.

M & M Welding places task orders under GSA's Multiple Award Schedule (54 task orders) and several agency-specific indefinite delivery contracts, including IDC 47PM0820D0003 (16 task orders, $7.6 million combined value), IDC GS11P14YMD0061 (11 task orders, $6.2 million), and Navy contracts N0001486C2107 and N6247786C1698 (three task orders each). The vendor's award volume has grown from 11 in 2022 to 21 in 2025, with nine awards in the first five months of 2026. Only two awards carrying $237 thousand combined potential value reach ultimate completion within the next twenty-four months, creating minimal recompete exposure in the near term.

M & M Welding operates predominantly as a prime contractor delivering its own labor and fabrication capabilities. Across SCI-reportable service contracts, the vendor invoiced $11.2 million from FY2022 to FY2024, with FY2024 billing of $4.4 million across 5.9 FTEs. The FTE trajectory shows a sharp rise in FY2024 to 33.6 FTEs across both prime and sub records, indicating significant capacity deployment or reporting change. Government-paid hourly rates on prime contracts run a median of $311.15 per hour, with senior labor pricing through $469.69 per hour. On SCI-reportable prime contracts, the vendor performed 100% of contractor hours in-house, demonstrating a fully internal delivery posture with no reliance on named subcontractors for labor.

In its subcontractor role, M & M Welding supplies welding repairs, steam coil replacements, boiler maintenance, HVAC system upgrades, and mechanical infrastructure repairs to primes including M.C. Clean Vendor (facilities engineering and O&M work at ten federal buildings in Washington, D.C.), Trademasters Service, Inc. (Department of Labor and ATF facility maintenance), Johnson Controls Building Automation Systems, LLC (Pentagon preventative maintenance and HVAC modernization), ASRC Federal Facilities Logistics LLC (NASA Goddard Space Flight Center ROME services at Greenbelt and Wallops), and Peraton Inc. (environmental test and integration services at NASA GSFC). These sub engagements span federal buildings, HVAC systems, steam plants, and spacecraft testing chambers across civilian and defense missions in the National Capital Region and beyond.

Rentals, Repairs, Service,Installation,Removals of boilers, chillers, cooling towers, and HVAC work