WALT'S MECHANICAL SERVICES 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, 100% are HVAC work.

HVAC 34

Typical job observed: 3 ton systems, 80,000 BTU.

Recent work

• Heat pump install
  September 2026 · Anne Arundel County

  Install new 3ton geo heat pump, 1 zone 36k btu. Reconfigure return on second floor and connect to existing ductwork.

• HVAC work
  September 2026 · Anne Arundel County
• Furnace replacement 2.5 tons
  August 2026 · Anne Arundel County

  Exact replacement of a 2.5ton heat pump and furnace. 1 zone, 30k btu. Connect to existing ductwork.

• Heat pump install 2 tons
  August 2026 · Anne Arundel County

  Replace one 5ton and 2ton heat pumps with new. 2 zones, 84l btu. Connect to existing ductwork.

• HVAC install
  August 2026 · Anne Arundel County

  Install one new 2ton hp, one ducted mini split, 2 zones 48k btu. Install new ductwork to second floor and add ductwork …

• Heat pump install 3 tons
  July 2026 · Anne Arundel County

  install one 3 ton heat pump with duct work and one 2 ton heat pump with duct work 4ea. exhaust fans one dryer vent.

• Furnace install 2 tons
  July 2026 · Anne Arundel County

  Install 80000 BTU furnace and 2 ton A/C unit duct work.

• HVAC replacement
  July 2026 · Anne Arundel County

  Exact system replacement of 5ton geo HP, 1 zone 60k btu. Connect to existing ductwork.

• Furnace install
  June 2026 · Anne Arundel County

  Install new 3ton HP and Furnace, 1 zone, 36k btu. Connect to the existing ductwork.

• Furnace replacement 4 tons
  May 2026 · Anne Arundel County

  Remove oil burner and replace with gas furnace and 4 ton A/C unit.

Licensing

• Maryland HVACR Contractor Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration. 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 December 2025. Years before that are not shown because we hold nothing for them, not because nothing happened.

What this page is, and is not

• Anne Arundel County: 34 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 WALT'S MECHANICAL SERVICES LLC under Maryland HVACR Contractor. 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 Anne Arundel County