MAYNE MECHANICAL 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, 54% are HVAC work.

HVAC 7

Plumbing 6

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

Recent work

• HVAC work
  June 2026 · Anne Arundel County

  Demolition and alterations to existing ductwork to accommodate new layout

• HVAC install
  June 2026 · Anne Arundel County

  Demolition and alteration of existing ductwork to accommodate new layout, install 2 new exhaust fans

• HVAC relocation
  May 2026 · Howard County

  VEHO TECH, INC / ENTIRE BLDG / relocate one 4 ton RTU, alter existing duct to accommodate new layout

• Permit filed
  May 2026 · Howard County

  relocate one 4 ton RTU on roof, alter existing duct to accommodate new tenant layout

• Interior work
  October 2024 · Howard County

  Alterations to existing domestic water and sanitary systems to accommodate new tenant fit out. 2 water closets, 2 lav s…

• Water heater replacement
  October 2024 · Howard County

  SUITE D/ WHITE BOX/Alterations to existing domestic water and sanitary systems to accommodate new tenant fit out - 4 wa…

• Plumbing work
  September 2024 · Howard County

  SUITES C & D/ VACANT/alterations to existing sanitary and domestic plumbing to accommodate new tenant fit out - 1-bi-le…

• Water heater replacement 150,000 BTU
  April 2024 · Howard County

  SUITE 400/Howard County Department of Utilities/Alterations to existing sanitary and domestic plumbing systems to accom…

• Gas water heater replacement 8,525 BTU
  February 2024 · Howard County

  UNIT T/ CENERO/FIXTURES TO BE INSTALLED: (1) undermount sinks with faucet. One (1) undermount stainless steel sink with…

Licensing

• 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

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: 12 permits observed, from records beginning August 2021.
• Anne Arundel County: 2 permits observed, from records beginning December 2025.

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 MAYNE MECHANICAL LLC under Maryland HVACR Contractor, Master Plumber and 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