JR THOMAS F HARNEY

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, 69% are plumbing work.

Plumbing 11

HVAC 5

Recent work

• Gas water heater replacement
  July 2026 · Frederick County

  Install 1 BFP, 4 bathroom sinks, 1 drinking fountain, 2 floor drains, 1 ice maker, 1 mop sink, 1 sink, 3 toilets, 1 uri…

• Interior install
  April 2026 · Frederick County

  Plumbing for new tenant fit out. Work to include: install 3 Backflows, 14 B/R sinks, 3 DW, 3 Drink Fount, 8 Floor Drain…

• Gas water heater replacement 932,000 BTU
  February 2026 · Frederick County

  4451 Georgia Pacific, STE A-P, Power Solutions. Tenant Fit-Out. Install 2 ASSE1024 backflow preventers, 13 bathroom sin…

• Plumbing work
  December 2025 · Frederick County

  4660 New Design Rd, STE A. Premium Distributors. Disconnect and cap off (1) existing water closet, (1) existing lavator…

• Water heater replacement
  September 2025 · Frederick County

  Existing tenant change to space. Install water lines to (2) coffee makers, (2) water coolers. Install (4) ASSE1024 back…

• Kitchen renovation
  January 2025 · Frederick County

  Install new ADA Bathroom, laundry tray, drinking fountain, kitchen sink and ice-maker

• Plumbing install
  May 2024 · Frederick County

  Install 2 backflow preventers, 1 floor drain, 4 hose bibs, 44 future y's.2 unit heaters, natural gas, 2lb system

• Gas water heater replacement 250,000 BTU
  December 2023 · Frederick County

  Install bathrooms per plans (2) bathroom sinks, (1) drinking fountain, (1) ice maker, (1) sink, (2) toilets, (1) utilit…

Licensing

Frederick County does not publish license records with its permit data, so none appear here. That is a gap in the county's published data, not a statement about this contractor.

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: 16 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 here do not list a license type for this contractor. That does not mean the contractor is unlicensed; not every county publishes license data with its permits.

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