AMERICAN MASTERS PLUMBING CO LLC

Permits are pulled before work begins and then inspected by the county. A contractor who files them is working inside a system with an inspector in it, which is what unpermitted work avoids.

What the permits show

Of the permits we observed, 90% are plumbing work.

Plumbing 9

HVAC 1

Recent work

• Plumbing replacement 50,000 BTU
  June 2026 · Howard County

  1 outdoor gas grill 50000 btu,1 gas fireplace 30,000 btu and 1 outdoor hand sink

• Water heater replacement
  June 2026 · Howard County

  Add toilet,sink,shower wet bar and relocate and add an electric water heater.( there will ultimately be 2 electric wate…

• Interior work
  April 2026 · Howard County

  SFD/Rough in 2 toilets,2 sinks,1 shower and 1 tub

• Plumbing replacement
  December 2025 · Howard County

  SFTH/Replacing underground sewer and underground water service 1 1" water service replacement and one 4" pvc sewer repl…

• Furnace install
  October 2025 · Howard County

  Rough in 1 electric water heater, 2 hose bibs,1 kitchen sink, 1 icemaker, 3 toilets,4 lavy sinks,1 shower,1 tub,1 washe…

• Plumbing work
  July 2025 · Howard County

  Rough in toilet, lavy sink and shower on second floor

• Kitchen renovation
  June 2025 · Howard County

  SFD/Rough in 27 new plumbing fixtures in newly built house - toilet, lavy,1 electric water heater, hose bib, sump pump …

Licensing

• Master Plumber and Gas Fitter Issued by Maryland Board of Plumbing. Verify

Towns we observed them working in

We hold permit records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC. Work anywhere else is not missing from this contractor's record, it is outside what we cover.

Permits by year

Our records for this contractor's counties begin August 2021. Years before that are not shown because we hold nothing for them, not because nothing happened.

What this page is, and is not

• Howard County: 10 permits observed, from records beginning August 2021.

This page shows permits we observed in county records. Our observation is not complete: work done before those dates, in counties we do not cover, or on filings that name no contractor does not appear here. A contractor's real work is almost always greater than what we observed, and absence of a permit on this page does not mean the work was not done or not permitted. We currently hold records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC; see permit coverage for what that includes.

Common questions

Does a permit record mean this contractor is licensed?

County permit records list AMERICAN MASTERS PLUMBING CO LLC under Master Plumber and Gas Fitter. Check current standing with the issuing body before hiring.

Why do some contractors show more permits than others?

Counties began publishing at different times and describe contractors differently, so the number reflects what we observed as much as what the contractor did. It is not a ranking.

What should I still ask for?

Proof of insurance, a written contract, and the license number for the trade being performed. A permit record is a starting point, not a substitute for either.

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