MICHAEL AND SON SERVICES, 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, 66% are HVAC work.

HVAC 281

Electrical 86

Plumbing 51

Accessory Structure 6

Deck & Patio 2

Pool & Spa 2

Typical job observed: 2.5 ton systems, 66,000 BTU, 26 kW, 50 amp service.

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

Recent work

• Electrical install 15 amps
  September 2026 · Frederick County

  Adding two outlets off existing 15 amp circuit

• HVAC replacement
  August 2026 · Anne Arundel County

  Replace hedat pump and air handler

• Heat pump install
  August 2026 · Anne Arundel County

  Replace heat pump and air handler

• EV charger install 50 amps
  August 2026 · Frederick County

  Installation of (2) new 20 amp GFCI receptacles on 20 amp circuit at planned wet bar area. Installation of (1) 50 amp d…

• Plumbing removal
  August 2026 · Frederick County

  Stove gas line removal

• Electrical install 20 amps
  August 2026 · Frederick County

  Adding 20 amp circuit for shed

• Plumbing replacement
  August 2026 · Frederick County

  Replace ng valve and burner hook up

• Furnace replacement
  August 2026 · Frederick County

  Gas furnace and air conditioner replacement

• EV charger install 60 amps
  August 2026 · Frederick County

  Adding (1) 60 amp circuit for car charger

• Water heater replacement
  July 2026 · Frederick County

  Electric water heater replacement

Licensing

• Maryland HVACR Contractor Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration. Verify
• Maryland State Electrician Issued by Maryland Board of Master Electricians. 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: 221 permits observed, from records beginning August 2021.
• Frederick County: 175 permits observed, from records beginning August 2021.
• Anne Arundel County: 32 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 MICHAEL AND SON SERVICES, INC. under Maryland HVACR Contractor, Maryland State Electrician, 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