Magnolia Plumbing, Inc.

Washington, DC Plumbing, Water & Sewer Utility

UEI
DTKUPECA38L5
CAGE
1P4M9
Primary NAICS
238220 Plumbing, Heating, and Air-Conditioning Contractors
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Limited Liability Company
Entity structure
Partnership or Limited Liability Partnership
NAICS codes registered in SAM.gov
SAM.gov registration date
Physical address
600 Gallatin St NE, Washington, DC 20017, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .

Recent federal awards

Magnolia Plumbing, Inc.'s 5 most recent federal contract and grant awards, newest first. Amounts are dollars obligated.
Award Agency Obligated Awarded
Preventive maintenance and cleaning Contract · 1331L526P13OS0002 Office of the Secretary $4,200
FY26 dcsc-24-SAS-211 magnolia plumbing- option year one period of performance october 1, 2025 through september 30,… Contract · 95C67826P0025 — $164,964
Wastewater deliveries with option Contract · N0016725P1133 Naval Sea Systems Command $36,750
REF CO 95C67824P0317 dcsc-24-SAS-211 magnolia plumbing base year period of the contract for an additional 3 month POP… Contract · 95C67825P0292 — $43,062
Wastewater/sewage delivery Contract · N0016725P0024 Naval Sea Systems Command $54,860

About Magnolia Plumbing, Inc.

Magnolia Plumbing, Inc. Plumbing, Water & Sewer Utility Division is a self-certified small disadvantaged business delivering specialized plumbing, wastewater, and water utility maintenance services to federal agencies exclusively as a prime contractor on small firm purchase orders with no set-aside designations in its recent awards. The company operates as a for-profit limited liability partnership based in Washington, D.C., registered in SAM.gov since April 2000, and competes full-and-open rather than under formal SBA set-aside vehicles.

Magnolia Plumbing's service portfolio centers on sewage ejector pit pumping, inspection, and cleaning; wastewater and sewage collection, hauling, and delivery; backflow preventer repairs and certification; sewer line repair and replacement; high-pressure jetting of sanitary sewer piping; and well inspection and cleanout. Concrete examples span sewage ejector pit pumping and inspection services for the Department of Interior's Office of Policy Management and Budget ($365,671 ceiling, awarded September 2022, performance through September 2027); wastewater delivery supporting Naval Surface Warfare Center Carderock Division's shipboard sewage treatment system testing ($76,125 ceiling, August 2025, with 61 documented successful deliveries since November 2022); annual preventive maintenance and pumping of sewage ejector tanks for the Defense Counterintelligence and Security Command ($157,455 ceiling, base year July 2024 through July 2025, with a one-year extension option valued at $164,964); and multiple backflow preventer repairs and certification services for the Smithsonian Institution's museum facilities ($22,885, $30,995, and other projects between 2021 and 2023).

Customer concentration is moderate and regional. The Smithsonian Institution anchors the vendor's award count at 27 awards ($537 thousand combined potential value) but does not dominate dollars; the Department of Interior's Office of Policy Management and Budget leads the potential-value ranking with three awards worth $460 thousand, while the Department of Energy's Office of Management, the Department of Veterans Affairs' Veterans Health Administration Network 5, and the Department of the Navy's Naval Sea Systems Command collectively account for the remaining top-five concentration. The top five customers account for 55% of award count and 67% of combined potential value. Recent activity is sparse — one award in 2026, three in 2025, five in 2024 — following two-award years in 2022 and 2023. Four awards with ultimate completion dates in the next twenty-four months carry combined potential value of $662 thousand and represent recompete exposure. The vendor maintains a presence on GSA's Blanket Purchase Agreement 89303019AMA000013 (two task orders, $236 thousand) and the General Services Administration's Multiple Award Schedule, but neither vehicle dominates its workload; the bulk of awards are issued as direct purchase orders.

Magnolia Plumbing operates as a prime on 98% of its awards and subcontracts on only two recorded agreements. Across SCI-reportable service contracts, the vendor reported 5.3 FTEs in FY2024 on one subcontract award. The two named sub engagements are filter replacement work ($75 filters at 10 vault locations, April-August 2024) under Emcor Government Services as prime, and plumbing services on a roads-and-grounds contract under D7, LLC. These peripheral sub arrangements do not reflect the company's core operating model — Magnolia Plumbing builds and delivers its own teams on federal work and does not function as a feeder subcontractor to larger integrators. The vendor's business model is characterized by direct customer relationships, specialized technical capability in water and wastewater facility operations, and persistent engagement with mid-Atlantic federal installations, particularly in the National Capital Region.

Quick answers

What is Magnolia Plumbing, Inc.'s UEI?

Magnolia Plumbing, Inc.'s Unique Entity ID (UEI) in SAM.gov is DTKUPECA38L5.

What is Magnolia Plumbing, Inc.'s CAGE code?

Magnolia Plumbing, Inc.'s CAGE code is 1P4M9.

What is Magnolia Plumbing, Inc.'s primary NAICS code?

Magnolia Plumbing, Inc.'s primary NAICS code is 238220 (Plumbing, Heating, and Air-Conditioning Contractors).

Where is Magnolia Plumbing, Inc. located?

Magnolia Plumbing, Inc.'s physical address in SAM.gov is 600 Gallatin St NE, Washington, DC 20017, USA.

Is Magnolia Plumbing, Inc. registered in SAM.gov?

Yes. Magnolia Plumbing, Inc.'s SAM.gov registration is active through June 3, 2027.

What is Magnolia Plumbing, Inc.'s most recent federal award?

Magnolia Plumbing, Inc.'s most recent federal contract award is Preventive maintenance and cleaning (1331L526P13OS0002), from Office of the Secretary, on January 19, 2026.

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See Magnolia Plumbing, Inc.'s full federal record

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