Permit Required? Required
Typical Fee Range $50–$1,500 Mechanical HVAC permit fees for system replacement or modification.
Fee Method Flat fee
Apply Online Apply at Department of Permits, Approvals and Inspections →

What's Required in Baltimore

  • Mechanical permit required for HVAC system changes or replacements.
  • Requires contractor information for a licensed HVAC technician.
  • Site plan may be required for exterior unit placement.
  • Electrical permit required for power connection to the system.
  • Must include description of proposed mechanical work.
  • Compliance with 2021 IECC Energy Efficiency standards.

How to Get a HVAC Permit in Baltimore

1

Step 1: Hire Technician

Select a licensed HVAC contractor registered with PAI.

2

Step 2: Submit Application

Contractor enters work details and project info in the portal.

3

Step 3: Document Upload

Upload system specs and necessary site plans.

4

Step 4: Fee Notification

Applicants receive notice when fees are ready for payment.

5

Step 5: Inspection

Schedule technical review inspections upon project completion.

Frequently Asked Questions

Yes, any HVAC system change or replacement requires a permit.
Yes, both system changes and electrical modifications require permits.
Payments are accepted via Mastercard, Visa, or PayPal on the dashboard.