Justin Cantwell

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, 54% are electrical work.

Electrical 7

HVAC 3

Accessory Structure 2

Pool & Spa 1

Typical job observed: 200 amp service.

Recent work

• EV charger install 200 amps
  May 2026 · Frederick County

  INSTALL AN EV CHARGER AND REPLACE A PANEL REPLACEMENT 200-200 AMPSCharging pedestals are not allowed to be constructed …

• Pool install
  April 2026 · Frederick County

  Electrical wiring installation for a new hot tub outlet.

• Electrical replacement 200 amps
  April 2026 · Frederick County

  200 to 200 amps panel replacement.W/o #W002122607189

• Electrical service upgrade 200 amps
  November 2025 · Frederick County

  Underground heavy up - Service remaining 200 AMPSWO# W002098685345

• Electrical service upgrade
  September 2025 · Frederick County

  Heavy up

• EV charger install
  April 2025 · Frederick County

  Install car charger in garage.Charging pedestals are not allowed to be constructed in the right of way or within any Co…

• Gas water heater replacement
  March 2025 · Frederick County

  Natural gas water heater replacement

• Generator install
  December 2024 · Frederick County

  Install backup generator

• Electrical replacement
  December 2024 · Frederick County

  FINAL ONLY Replacing expired permit 472335 - Adding (2) Plugs in existing room in existing finish basement

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: 13 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