Statewide Permit Detail

General Info

HVAC Permit

Statewide Permit

Permit required for HVAC work in residential occupancies.

The type of work that requires an HVAC Permit includes:

- HVAC installations in new construction.

- Any conversion of electric to another energy source.

-  Additions and alterations that require installation of new HVAC systems.

- Replacement HVAC equipment when gas or oil fired, or when a geothermal tax credit is being sought regardless of energy source.

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Valid for Varies Revised : No Date
Varies Approval time
$50 Application cost
15-45 mins Average completion time

How to get your license?

Obtaining the License

Steps, requirements and documents

Each application should include a simplified, but accurate plan drawn to scale which should include:

An information block with the:

- Specific building address (not lot number);

- Name of the company or person doing work;

- Name of the licensee and their signature;.

- State license registration number;

- Scale used; and

- North arrow


Rooms, windows, exterior doors, or other relevant construction features including, but not limited to, skylights, porches, or attic access to equipment that may affect the integrity of the HVAC system and its installation; AND

A line drawing of HVACR system components superimposed on the plan showing the location, dimension, and relevant elements, including, but not limited to:

- Interior or exterior HVACR equipment;

- Duct trunk lines and transitions;

- Branch ducts/run-outs, dampers, and registers with CFM ratings;

- Thermostats;

- Return ducts and grills;

- Ducts insulations;


A summary of Manual J calculations for the proposed work which include the following information:

- Equipment summary including manufacturer, model number and BTU's input and output;

- Summary of heat load for each zone plus the entire dwelling;

- Room-by-room analysis

How do I apply?

Apply or register

Online Application Open up new website
Visit site

Permit issuer



Who issues the permit?

Howard County - Department of Inspections, Licenses, Permits

Contact information

Cathy Anest

Address: 3430 Court House Drive, Ellicott City, MD 21043

How do I apply?

Apply or register

Online Application Open up new website
Visit site


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