M & N PLUMBING 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, 94% are plumbing work.

Plumbing 58

HVAC 3

Gas 1

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

Recent work

• Interior install
  September 2026 · Howard County

  SFD/Install plumbing in basement for 1 toilet, 1 lavatory,1 tub ( all is existing ) and 1 bar sink.

• Kitchen renovation
  August 2026 · Howard County

  Amendment to 26TMP-018971, install 1 kitchen stove and 1 kitchen sink on 1st floor.

• Water heater replacement
  July 2026 · Anne Arundel County

  Install plumbing at address for 2 existing, 1 water heater, 1 dry vac pump, 1 air compressor, 1 WATER VALVE SOLENOID, 1…

• Gas install
  July 2026 · Anne Arundel County

  Install gas piping for 1 natural gas range on 1st floor.

• Plumbing install
  June 2026 · Anne Arundel County

  Install plumbing fixtures also including (1) ice maker

• Plumbing relocation
  December 2025 · Howard County

  SUITE 314/ GLAUCOMA PLUS EYE CARE LLC /Relocate 1 utility sink 30 feet from existing location, relocate 1-drain pipe an…

• Furnace install
  August 2025 · Howard County

  Unit B/PRECISION AUTO GLASS/Install 120 ft of gas piping for unit B for (1) - 90k BTU furnace. BGE W.O. #NB-0025777 ***…

• HVAC replacement
  January 2024 · Howard County

  SUITE B130/ MIGHTY QUINN'S BBQ/Install plumbing for 2 toilets, 2 lavatories, 9 floor drains, 9 floor sinks, 1 prep sink…

• Gas water heater replacement
  January 2024 · Howard County

  UNIT 1410/ POLLO CAMPERO OF MARYLAND LLC/Install plumbing on 1st floor for 4 hand sinks,1 - 3 compartment kitchen sink,…

Licensing

• 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: 54 permits observed, from records beginning August 2021.
• Anne Arundel County: 8 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 M & N PLUMBING LLC under 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 Plumbing contractors in Howard County