Williamson's Plumbing & Heating Corporation (USDOT 3395819)
USDOT 3395819 · Active · Upper Marlboro · MD
Public listing
- Legal name
- Williamson's Plumbing & Heating Corporation
- License or register id
- USDOT 3395819
- Status
- Active
- State
- MD
- City
- Upper Marlboro
- Category
- Private Property
- Phone
- +1 (301) 420-2702
- Address
- 7943-a Penn Randall Pl, Upper Marlboro, MD, 20772
- Official source
- FMCSA Company Census
Verify this record on the official source named above before you hire, fund, or rely on it. An index listing is not an endorsement, a rating, or a review. Empty phone or address means that public file did not include it.
Census fleet
- Power units
- 4
- Drivers
- 4
- Operation
- Interstate
- Classification
- Private Property
- Census status
- Active
- Trucks
- 4
- MCS-150 mileage
- 293212 (2024)
- MCS-150 date
- 20250924
- Fleet size
- 4–6 power units
- Hazmat
- No
- Company officer
- Pasmoor Hilroy Williamson
- Mailing address
- 7943-a Penn Randall Pl, Upper Marlboro, MD, 20772
Company Census fields (fleet, safety, cargo, officers, mailing). VIN/plate come from SMS Input joins when present.
About
Williamson's Plumbing & Heating Corporation is in the FMCSA Company Census as USDOT 3395819. census status Active. address 7943-a Penn Randall Pl, Upper Marlboro, MD, 20772. 4 power units. 4 drivers. Private Property. Interstate operation. Source: public FMCSA Company Census. Not an FMCSA endorsement.
How to verify
How do I verify Williamson's Plumbing & Heating Corporation?
Match the legal name and USDOT 3395819 on FMCSA SAFER. BrokerMafia republishes the public Motus and Company Census record and does not endorse the firm.
What does this listing show?
Operating authority, USDOT, census fleet, and insurance filings when those fields are on the FMCSA extract.

