GAC SERVICES

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, 88% are HVAC work.

HVAC 28

Electrical 3

Plumbing 1

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

Recent work

• Furnace replacement
  August 2026 · Prince George's County

  Furnace & AC replacement

• Electrical upgrade 200 amps
  August 2026 · Anne Arundel County

  Electrical service upgrade 100-200amp Overhead electric service (Use existing 200 amp main breaker panel) Upgrade new e…

• Electrical replacement
  August 2026 · Anne Arundel County

  Change out of an AC & coil replacement

• Heat pump install
  July 2026 · Anne Arundel County

  Change out of a heat pump & ahu

• Electrical service upgrade 200 amps
  April 2026 · Anne Arundel County

  Heavy up from 100 to 200 amps

• Gas water heater replacement
  October 2024 · Howard County

  Installation of gas water heater

• Water heater replacement
  January 2024 · Howard County

  Replacement of water heater

• Furnace replacement 40,000 BTU
  January 2024 · Howard County

  Replacement of one water heater (40,000 BTU) and one furnace (90,000 BTU) & ac system.

Licensing

• Licensed Electrician Issued by Maryland Board of Master Electricians. Verify
• Maryland HVACR Contractor Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration. Verify
• Master Plumber and Gas Fitter Issued by Maryland Board of Plumbing. Verify
• Natural Gas Fitter Issued by Maryland Board of Plumbing. 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: 19 permits observed, from records beginning August 2021.
• Anne Arundel County: 11 permits observed, from records beginning December 2025.
• Prince George's County: 2 permits observed, from records beginning August 2026.

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 GAC SERVICES under Licensed Electrician, Maryland HVACR Contractor, Master Plumber and Gas Fitter, Natural Gas Fitter. 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 HVAC contractors in Howard County