Duffy Electric 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, 83% are electrical work.

Electrical · 5Pool & Spa · 1

Typical job observed: 200 amp service.

Recent work

• Pool work
  August 2026 · Howard County

  updating the electrical grounding to an existing pool being re built due to tree falling

• Electrical replacement 200 amps
  January 2025 · Howard County

  We will be removing a 200 amp panel & replacing it w/ a new 200 amp panel

• Electrical upgrade 200 amps
  March 2024 · Howard County

  Upgrading 100 amp panel to a 200 amp panel; Will upgrade grounding & add disconnect per code *Amendment received 3/25/2…

• Electrical work 200 amps
  November 2023 · Howard County

  Removing an existing outdated 200 amp panel & adding a new 200 amp panel

Licensing

• Maryland State Electrician Issued by Maryland Board of Master Electricians. 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

• Howard County: 6 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 Duffy Electric LLC under Maryland State Electrician. 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 Electrical contractors in Howard County