HVAC Permit in Louisville (2026)
HVAC permit requirements, fees, and process for Louisville, KY. Find out if you need a permit and how to apply.
Yes, a HVAC permit is required in Louisville, KY.
A HVAC permit is required in Louisville, KY. The Louisville Metro Planning and Design Services handles permit applications for Louisville. Below you will find the current thresholds, fees, and process for obtaining a hvac permit in Louisville.
When Is a Permit Required?
When a HVAC Permit Is Required in Louisville: All HVAC installations and replacements
Permit Fees
HVAC Permit Fees in Louisville: $75–$300. Estimated timeline: 1-2 weeks.
Estimated timeline: 1-2 weeks
How to Get a HVAC Permit in Louisville
Verify whether your project meets the permit threshold in Louisville: All HVAC installations and replacements.
Prepare your permit application and plans. Contact the Louisville Metro Planning and Design Services at https://louisvilleky.gov/government/develop-louisville for required documentation.
Submit your application online at https://louisvilleky.gov/government/construction-review or in person at the Louisville Metro Planning and Design Services.
Pay the permit fee: $75–$300.
Wait for plan check approval. Estimated timeline: 1-2 weeks.
Schedule required inspections through https://louisvilleky.gov/government/construction-review. All inspections must pass before project is finalized.
Important: Louisville Metro mechanical permit. Louisville has 4-season climate — HVAC handles both hot humid summers and cold winters. LG&E offers efficiency rebates.
Louisville Metro Planning and Design Services
Phone: See official source
Website: https://louisvilleky.gov/government/develop-louisville
Online Permits: https://louisvilleky.gov/government/construction-review
Hours: See official source
Frequently Asked Questions
Source: Louisville Building Code — HVAC Requirements. Last verified April 6, 2026. View source