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Do I need a permit to replace an AC in Arizona?
Source: Arizona HVAC Help (arizonahvachelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 2, 2026.
Arizona cities do not agree. Some exempt like for like replacement, Glendale exempts licensed contractor installs, and others require a permit.
| City | Rule | Source |
|---|---|---|
| Phoenix | Permit exempt only if every counter screening question is no (same location, size, weight, refrigerant type and more). | (source: City of Phoenix Planning and Development) checked November 2, 2026 |
| Glendale | No permit if a licensed contractor installs it (residential). | (source: City of Glendale Building Safety) checked November 2, 2026 |
| Mesa | No permit if the new unit uses the same or less electricity; permit if electrical connections change. | (source: City of Mesa Development Services) checked November 2, 2026 |
| Surprise | Equal or lesser size, same method of operation and location exempt. | (source: City of Surprise) checked November 2, 2026 |
| Chandler | Like for like residential furnaces and evaporative coolers exempt. | (source: City of Chandler Development Services) checked November 2, 2026 |
| Tucson | Permit required to install or replace a central system. | (source: City of Tucson Planning and Development Services) checked November 2, 2026 |
| Scottsdale | Mechanical permit required except portable or window units. | (source: City of Scottsdale Planning and Development) checked November 2, 2026 |
| Goodyear | No permit for like for like residential replacements installed by a contractor. | (source: City of Goodyear Development Services) checked November 2, 2026 |
| Flagstaff | Permit required to replace regulated mechanical systems; no like for like exemption. | (source: City of Flagstaff) checked November 2, 2026 |
| Yuma | Change outs go through a mechanical permit application. | (source: City of Yuma) checked November 2, 2026 |
| Gilbert | No like for like HVAC exemption stated; ask (480) 503-6700. | (source: Town of Gilbert) checked November 2, 2026 |
Where a permit is required, the under $1,000 handyman exemption does not apply. (source: Arizona State Legislature)
The under $1,000 exemption never covers work that connects to natural gas, propane or other petroleum or gaseous fuel, including installing, maintaining or repairing appliances, or fire safety work such as hardwired or interconnected smoke alarms and fire sprinklers (A.R.S. 32-1121(D)). So an unlicensed handyman may not swap a gas water heater or gas furnace, even for under $1,000. An owner doing their own work under the owner exemption is a separate rule. (source: Arizona State Legislature)
Advertising rule: a person without a contractor license who uses any form of advertising to the public must include the words "not a licensed contractor" in the ad, or the under $1,000 exemption does not apply (A.R.S. 32-1121(A)(14)(c)). If the job needs a local building permit, the exemption does not apply at all (A.R.S. 32-1121(A)(14)(a)). (source: Arizona State Legislature)
On this site: Do I need a permit to replace an AC in Arizona? · When an AC change needs a permit in Phoenix · Mini-split and ductwork permits in Arizona · Evaporative cooler permits in Arizona · Can I do my own HVAC work in Arizona? · When does an Arizona contractor need a license? · Arizona contractor contract rules · How to check an Arizona contractor and complain · The Arizona Residential Contractors' Recovery Fund · Cities · FAQ · Sources
Sources
- City of Phoenix Planning and Development: Air Conditioner Replacement Counter Questions and Guidelines (revised September 10, 2026, PDF) (checked November 2, 2026)
- City of Glendale Building Safety: Building Permits Q and A (checked November 2, 2026)
- City of Mesa Development Services: Residential Construction Frequently Asked Questions (checked November 2, 2026)
- City of Surprise: Local Amendments to the 2024 International Codes (effective January 1, 2026, PDF) (checked November 2, 2026)
- City of Chandler Development Services: Homeowner Building Permit Manual (rev. 4/09/26, PDF) (checked November 2, 2026)
- City of Tucson Planning and Development Services: Do I Need a Permit? (Exemptions) (checked November 2, 2026)
- City of Scottsdale Planning and Development: Permit Services (checked November 2, 2026)
- City of Goodyear Development Services: Homeowner Info (Homeowner Permit FAQs) (checked November 2, 2026)
- City of Flagstaff: When is a building permit needed? (PDF, 2018) (checked November 2, 2026)
- City of Yuma: Mechanical Permit Application (Rev 12/23, PDF) (checked November 2, 2026)
- Town of Gilbert: Technical Codes of the Town of Gilbert, 2020 Edition (2018 Code Amendments, PDF) (checked November 2, 2026)
- Arizona State Legislature (Arizona Revised Statutes): A.R.S. 32-1121 (persons not required to be licensed) (checked November 2, 2026)
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