Permit Required
Do you need a permit to replace a furnace?
Replacing a gas, electric, or oil furnace.
The general rule
Permit Required under the general IRC R105.1 / M1301 baseline. Furnace replacement requires a mechanical permit and inspection.
This is a general starting point. Your city may have its own rule — always confirm locally. Verified city rules are listed below.
Verified rules by city
| City | Permit? | Verified |
|---|---|---|
| Austin, TX | Permit Required | 2026-06-26 |
| Chicago, IL | Permit Required | 2026-06-26 |
| Dallas, TX | Permit Required | 2026-06-26 |
| Denver, CO | Permit Required | 2026-06-26 |
| Houston, TX | Permit Required | 2026-06-26 |
| Los Angeles, CA | Permit Required | 2026-06-26 |
| New York, NY | Permit May Be Required | 2026-06-26 |
| Phoenix, AZ | Permit May Be Required | 2026-06-26 |
| San Diego, CA | Permit Required | 2026-06-26 |
| Seattle, WA | Permit Required | 2026-06-26 |