No Permit Required
Do you need a permit to install a water heater in Phoenix, AZ?
Replacing an existing water heater in a one- or two-family dwelling is exempt from a plumbing permit when performed by a licensed contractor installing to manufacturer instructions and code.
✓ Verified from official source
Source: City of Phoenix PDD — Work Exempt from Permit (PBCC §105.2.4) — Verified 2026-06-26
Permit rules vary by property and change over time. This is an informational guide, not legal advice — always confirm with City of Phoenix Planning & Development Department before starting work.
How to get the permit in Phoenix
Building department
Apply online
Phone
(602) 262-7811
Code in force
2018 International Residential Code with Phoenix amendments (Phoenix Building Construction Code)
Need a permit pulled? Find a licensed plumber in Phoenix
Licensed plumbers near you can handle the permit and the work — compare pros on our directory.
Find a plumber in Phoenix, AZ →See Installing a Water Heater permit rules for other cities →