WILLIAMS 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, 88% are plumbing work.

Plumbing 60

HVAC 4

Deck & Patio 2

Pool & Spa 2

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

Recent work

• Kitchen renovation
  July 2026 · Frederick County

  Relocate kitchen and install a master bathroom

• Plumbing replacement
  July 2026 · Frederick County

  Adding an outside fireplace natural gas line.Related building permit 507616

• Interior work
  July 2026 · Frederick County

  Delete 2 first floor bathrooms on first floor and making 1 bigger bathroomRelated Building Permit #506566

• Water heater replacement
  May 2026 · Frederick County

  Replace 75-gal ng water heater and expansion tank

• Deck work
  April 2026 · Frederick County

  Add a gas line for an outdoor lp gas grill.Related deck permit #491640

• Interior install
  April 2026 · Frederick County

  Installation of fixtures for 3 bathrooms (rough-in was inspected on a previous permit that has since expired)Replacing …

• Plumbing addition
  March 2026 · Frederick County

  Install 4 inch sewer main and rough-in a full in the addition.Related building permit #502932

• Interior relocation
  January 2026 · Frederick County

  Turn half bath into a full bath by adding a shower. Toilet and vanity are being relocated per resubmission comments.Bui…

• Plumbing work
  October 2025 · Frederick County

  Add one 3” radon pipeRelated Building Permit #: 495259

• Interior addition
  August 2025 · Frederick County

  Addition - rough in and finish a toilet, single bowl vanity, tub/shower and washing machineBuilding Permit # 493631

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

• Frederick County: 66 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 WILLIAMS 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