mark leahy services

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, 43% are electrical work.

Electrical 6

Deck & Patio 4

Pool & Spa 3

HVAC 1

Typical job observed: 200 amp service.

Recent work

• Pool work
  September 2025 · Frederick County

  Replacing expired permit, #368604 for the following scope of work, "Wiring and bonding for swimming pool equipment, 2 p…

• Deck install
  September 2025 · Frederick County

  wire for screen porchRelated building permit number 499263

• Electrical install
  July 2025 · Frederick County

  Install (2) ceiling fans (2) plugs (6) low voltage lightsRelated building permit #: 495586

• Pool install
  June 2025 · Frederick County

  Replaces expired electrical 400236 for finalpool the original permit 396821 we had electrical inspections only needed f…

• Deck install 20 amps
  April 2025 · Frederick County

  To install on the porch: 1 ceiling fan, 4 down lights, 2 flood lights, 6 plugs, 4 switches, and two 20 amp circuits.Rel…

• Electrical service upgrade 400 amps
  November 2024 · Frederick County

  Heavy up from 200 amp to 400 amp service, (1) sub panel.

• Electrical service upgrade 200 amps
  October 2023 · Frederick County

  200 amp heavy up

• Heat pump install 200 amps
  September 2023 · Frederick County

  200 amp heavy up. Install 45 plugs, 30 light fixtures, 25 switches, heat pump, well pump, hot water heater, range, micr…

• Electrical replacement 400 amps
  July 2023 · Frederick County

  Work with power company to replace 400 amp meter socket - wo #766748361(Removed off permit 465824)

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: 14 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 Electrical contractors in Frederick County