Cosmo Solaris 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, 89% are solar work.

Solar 17

Electrical 2

Typical job observed: 35 panels, 18.1 kW.

Each county's permit system holds only their own records, so the combined view above exists nowhere else.

Recent work

• Solar panel install
  July 2026 · Frederick County

  Installation of a Roof-Mount PV Solar System with a project size of 10.68-kWp(24)TRINA SOLAR TSM-445NEG9RC.27(06)HOYMIL…

• Solar panel install 43 panels
  December 2025 · Howard County

  INSTALLATION OF ROOF MOUNTED PV SOLAR SYSTEM WITH THE PROJECT SIZE OF 19.14kWp(DC); (43) solar panels

• Solar panel install 45 panels
  December 2025 · Howard County

  Installation of roof mount solar system 20.47 kw (dc); (45) solar panels B25005355

• Solar panel install 20.47 kW
  December 2025 · Howard County

  Installation of roof mount solar system 20.47 kW (DC). 45 PANELS, EXISTING USE: SFD

• Solar panel install 16 panels
  November 2025 · Howard County

  Installation of Roof mount Solar system on detach Garge (16 Solar panels)

• Solar battery storage
  November 2025 · Frederick County

  Installation of a Roof-Mount PV Solar System with a project size of 36.4-kWp with battery backup.(80)CANADIAN SOLAR CS6…

• New garage 16 panels
  November 2025 · Howard County

  Sfd/install (16) roof mounted solar panels on detached garage**subject to field inspection**

• Solar battery storage 200 amps
  October 2025 · Howard County

  Installation of Roof Mounted pv Solar System (30-panels) with a project size of 13.35-kwp with a battery backup with a …

• Solar panel install 36 panels
  October 2025 · Howard County

  Installation of roof mount solar system 16.38kw (dc); (36) solar panels B25004527

• Solar panel install 30 panels
  October 2025 · Howard County

  Sfd/ install (30) roof-mounted solar panels**subject to field inspection**

Licensing

• Maryland State Electrician Issued by Maryland Board of Master Electricians. Verify
• Maryland Home Improvement Commission Issued by Maryland Department of Labor. 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.

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

• Howard County: 16 permits observed, from records beginning August 2021.
• Frederick County: 3 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 Cosmo Solaris LLC under Maryland State Electrician, Maryland Home Improvement Commission. 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 Solar contractors in Howard County