Common question
Does replacing an AC in Phoenix need a permit?
Phoenix’s residential permit guide lists an exception for replacing an existing air conditioner without changing its size, capacity or location. It also identifies adding or relocating equipment and electrical circuits as work that may require a permit.
Ask each company to state what changes at your home and who handles any required permits. This is City of Phoenix guidance; a Phoenix mailing address or a nearby community does not settle the permit authority for the property.
City of Phoenix: How to obtain a residential building permit · Source checked 2026-09-18
Check the business behind the quote
Arizona’s Registrar of Contractors recommends checking the contractor’s license and whether its classification covers the proposed work. Match the legal business name and license number on the proposal to that record before signing.
Use the written estimate to check the project scope, price and permit responsibility.
Arizona Registrar of Contractors: Before you hire a contractor · Source checked 2026-09-18
Use your utility account to check incentives
For SRP’s Cool Cash program, eligibility follows the electric customer and qualifying equipment, not the city name. Its requirements include installation by an Arizona-licensed contractor and, for split central systems, replacement of both the indoor air handler and condensing unit.
If an offer includes a rebate, have the company identify the program and explain which equipment qualifies. Keep the full installed price visible until eligibility is confirmed. These are SRP program conditions, not requirements for every Phoenix homeowner.
SRP: Air conditioner rebates and program requirements · Source checked 2026-09-18
Compare the proposed heating arrangement
In the Census Bureau’s 2020–2024 survey estimates for Phoenix, about 23% of occupied housing units used utility gas as their main heating fuel and about 74% used electricity. These citywide estimates include rental homes and have sampling uncertainty. Electricity does not identify a particular type of heating equipment.
Start with the fuel and model on your own system. If one proposal keeps that arrangement and another changes it, ask each company to separate retained equipment, removal, new equipment and any proposed electrical or gas work. That makes the difference in scope easier to compare.
Census ACS 2020–2024 via MCDC: house heating fuel · Source checked 2026-09-19
Make the quote fit your property
The 2020–2024 Census survey estimates put about 60% of Phoenix’s housing units in detached one-unit homes and about 32% in buildings with two or more units. These approximate figures include occupied and vacant units. They do not show whether a particular home has shared heating or cooling equipment.
Describe your actual property, the rooms served and access to the equipment. If a system or outdoor space is shared, ask who can authorize the proposed work. Have each company state which equipment and spaces its quote covers, so you can compare the same project.
Census ACS 2020–2024 via MCDC: units in structure · Source checked 2026-09-19

