A & J PLUMBING 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, 100% are plumbing work.

Plumbing · 7

Each county's permit system holds only their own records, so the combined view above exists nowhere else.

Recent work

• Plumbing relocation
  November 2025 · Howard County

  relocate gas stove

• Kitchen renovation 80,000 BTU
  October 2025 · Howard County

  SFD/addition relocating 1-kitchen sink and 1-island sink adding 1-wash machine/**1.6.25 AMENDMENT REQUEST TO ADD 1-GAS …

• Plumbing addition
  October 2024 · Frederick County

  Plumbing for new addition. Work to include (10) new fixtures. Related Building Permit #: 473912Replacing expired permit…

• Interior work
  October 2024 · Frederick County

  Adding shower to basement powder room. Related Building Permit #: 486580

• Basement bathroom install
  September 2024 · Frederick County

  Install a shower in the basement bathroom

• Plumbing replacement
  July 2024 · Frederick County

  Replacing water line to house

• Interior addition
  June 2023 · Frederick County

  Roughing in two new bathrooms for new addition*6/28/23 - Revision to add utility to permit for tying sewer to septic ta…

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.

What this page is, and is not

• Frederick County: 5 permits observed, from records beginning August 2021.
• Howard County: 2 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 A & J PLUMBING 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.

Other Plumbing contractors in Frederick County