CONSTELLATION HOME

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, 80% are HVAC work.

HVAC 4249

Plumbing 813

Accessory Structure 158

Electrical 85

Deck & Patio 7

Gas 3

Fire Protection 1

Typical job observed: 3 ton systems, 60,000 BTU, 20 kW, 60 amp service.

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

Recent work

• Furnace replacement 100,000 BTU
  September 2026 · Howard County

  Replace 100,000 BTUs gas furnace and 4-ton A/C with same. Basement OD UNIT: Trane/5TTX6048A1 ID Trane/S8X1C100M5PSC

• HVAC replacement
  September 2026 · Howard County

  UNIT 203/ Install disconnects for a replaced 3-ton A/C and AQUATHERM air handler

• Gas water heater replacement
  September 2026 · Anne Arundel County

  Replace 50-gallon gas water heater with same.

• Water heater replacement
  September 2026 · Anne Arundel County

  Replace 50-gallon electric water heater with same. Customer Name - Christopher Colby

• Heat pump install
  September 2026 · Anne Arundel County

  Install disconnects for a replaced heat pump and air handler with heater package

• Furnace replacement 80,000 BTU
  September 2026 · Howard County

  Replace 80,000 BTUs gas furnace and 3-ton A/C with same. Basement OD UNIT: Carrier/26SCA536W023 ID UNIT: Comfort 92 Car…

• Furnace replacement 70,000 BTU
  September 2026 · Howard County

  Replace 70,000 BTUs gas furnace and 2 1/2-ton A/C with same. Basement OD Rheem/RA15AY30AJ1NA ID R921T Rheem/R921T0703A1…

• Furnace replacement
  September 2026 · Howard County

  Install disconnects for a replaced 2 1/2-ton A/C & gas furnace. Basement.

• Electrical install
  September 2026 · Anne Arundel County

  Install disconnect for a replaced A/C unit

• Furnace replacement 110,000 BTU
  September 2026 · Howard County

  Replace 110,000 BTUs gas furnace and 4-ton heat pump. Basement Carrier/27VNA060A003 Infinity 80 Carrier/58TN0B110C21--2…

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
• Maryland State Electrician Issued by Maryland Board of Master Electricians. 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: 3813 permits observed, from records beginning August 2021.
• Anne Arundel County: 1414 permits observed, from records beginning December 2025.
• Frederick County: 89 permits observed, from records beginning August 2021.

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 CONSTELLATION HOME under Maryland HVACR Contractor, Master Plumber and Gas Fitter, Maryland State Electrician. 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