Michael P O'Connor

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, 92% are electrical work.

Electrical 79

HVAC 4

Plumbing 2

Pool & Spa 1

Typical job observed: 400 amp service.

Recent work

• Pool install 125 amps
  April 2026 · Frederick County

  Install (2) 125-amp feeds to Poole and Kents Trailers.

• Electrical install 30 kW
  March 2026 · Frederick County

  Install (12) Led Light Fixtures, (20) Receptacles, (4) HVAC Units, (1) 25kva transformer, (1) 480v 600amp 3 phase panel…

• Generator install
  March 2026 · Frederick County

  Install power from generator feeding Turners Additional (3) wide trailer.

• Generator install 400 amps
  January 2026 · Frederick County

  Bauxite III Bldg D - Install (10) 208v 60 amp disconnects for Split Systems, (2) 400amp disconnects for fire pump, (1) …

• Electrical install 600 amps
  December 2025 · Frederick County

  Install 480v 600amp feed to Temporary prewired break tent to feed panel.

• Electrical install
  December 2025 · Frederick County

  Bauxite III Building D Foundation - Install lines of various conduit for future electrical/connections. See attached do…

• Electrical install 125 amps
  December 2025 · Frederick County

  Install 125-amp feed to Power Solutions TrailerBuilding Permit # 501893

• Electrical work
  November 2025 · Frederick County

  Detached structure housing fuel skid & tank. Tank Permit # 492909

• EV charger install 50 amps
  October 2025 · Frederick County

  Bauxite III - Install (6) 50-amp temporary feeds to toilet trailers. Install (4) Temporary 20amp feeds to guard shacks …

• Electrical work 100 amps
  September 2025 · Frederick County

  Bauxite I Building D Phase 1 build out; data hall and office space Building Permit # 491345 WO# US57904413**10/1/25 Cha…

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: 87 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