JOHN D AHALT

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, 71% are electrical work.

Electrical 12

HVAC 3

Accessory Structure 1

Deck & Patio 1

Typical job observed: 100 amp service.

Recent work

• Accessory structure addition 400 amps
  April 2026 · Frederick County

  400 Amp Service, Relocate Meter & Disconnects plus refeed panels. (60) LSP Lights/switches & recpts. Wiring garage & Ad…

• Subpanel install 90 amps
  April 2026 · Frederick County

  Wiring of Shed with 90 amp subpanel, Trench, & Low voltage. as follows 10 switches14 recess lights3 outside lights6 out…

• Subpanel install 100 amps
  September 2025 · Frederick County

  100 Amp Subpanel, 1 mini split, 1 sump pump, 6 recpts, 1 ceiling fan/ light, 1 basement light, 3 switchesRelated buildi…

• Electrical install
  August 2025 · Frederick County

  Wiring Septic System Only

• Electrical replacement
  January 2025 · Frederick County

  Wiring a new septic for a replacement SFD.Related building permit #: 480019

• Electrical install 90 amps
  August 2024 · Frederick County

  Wiring a Detached Shed with trench. Note: Service will only be 90 Amps

• New home construction
  July 2024 · Frederick County

  Single Family New Construction Home total wire and low voltage

• Electrical install 200 amps
  September 2023 · Frederick County

  Replacing expired permit # 345334 - INSTALL 200 AMP SERVICE WO# 60094524

• Electrical work
  August 2023 · Frederick County

  Adding 8 to 9 Recess Lights, 1 fan/light combo, 1 vanity light & 1 plug, 2 dimmers.

• Deck work
  May 2023 · Frederick County

  Add 1 Fan/ Light combo to a screened in porch.

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: 17 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