J. ZIMMERMAN ELECTRIC INC

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, 50% are electrical work.

Electrical · 2HVAC · 1Plumbing · 1

Typical job observed: 100 amp service.

Recent work

• Electrical install 600 amps
  July 2026 · Howard County

  SUITE 18/ Mario's Produce/ Provide and install 1 200amp 480volt disconnect feed from existing 600amp service to feed 1-…

• Electrical install
  June 2026 · Howard County

  UNITS 4, 10, 12, 14, 16, 26, and 28/ Utilize existing circuits and install (60) wireless load controlled receptacles op…

• Water heater replacement 60 amps
  November 2025 · Howard County

  -Install 60amp 3phase 4wire panel to feed common area for Units 10 and 12. Run 1-1/4" conduit from main panel in unit 1…

• Furnace replacement 100 amps
  July 2025 · Howard County

  Replace 6 space sub panel feeding oven and kiln. Install new 100amp sub panel in unfinished portion of basement. Run 2/…

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: 4 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 J. ZIMMERMAN ELECTRIC INC 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