What does getPermit actually do?

getPermit reads your job details and tells you what a California city expects before you file: which permits the work triggers, the documents and plans you'll need, the fees to budget for, and the common reasons applications in that jurisdiction get bounced back. It produces a clear checklist you can act on. It does not submit to the city for you — you (or your permit person) stay in control of what gets filed.

Is there a human involved, or is it just AI?

Both. The AI does the research and drafts the assessment and checklist; an experienced permit coordinator reviews and approves it before it's treated as authoritative. The human check is the point — it's how we keep it trustworthy in a process where a wrong filing has real consequences.

Which cities do you cover?

We're starting deep in California rather than shallow everywhere. For a city we haven't fully mapped yet, we'll give you accurate general California guidance and point you to that city's official building department — and you can join the waitlist to be notified when we cover it in depth. We will not invent city-specific fees or timelines we haven't verified.

Solo electricians, plumbers, and HVAC contractors, and small general contractors who don't have a dedicated permit department and lose billable hours to permit admin.

How much does it cost?

It's pre-launch. Join the waitlist and you'll get founder pricing, your jurisdiction prioritized, and a direct line to the team. No spam, no credit card.

We're onboarding a first set of California contractors. Join the waitlist with your city and trade so we can prioritize the jurisdictions our early users actually work in.

Water heater replacement permits in Arizona

Last updated September 13, 2026

Early Arizona guides. getPermit is California-first — these pages share what we've verified in Arizona so far, and they don't mean getPermit covers Arizona yet. Join the waitlist with your city to tell us where to go deeper.

A plain-English starting point for plumbing contractors. This is general Arizona guidance — fees, forms, and timelines are set by each city.

Short answer

Water heater replacement is where Arizona jurisdictions differ most. Phoenix, Mesa, and unincorporated Maricopa County exempt like-for-like replacements under specific conditions, while Scottsdale requires a Water Heater Permit, issued as a Minimum Permit. Converting a gas tank to tankless or increasing gas input generally needs a permit, and Arizona's handyman exemption never covers gas connections.

The general picture

Arizona has no statewide building code, and water heater rules show it. In the four Phoenix-area jurisdictions we've verified, three exempt like-for-like replacements under specific conditions and one issues a simple permit: Phoenix exempts an in-kind replacement at a one- or two-family home done by a licensed contractor, Mesa exempts units of equal or lesser rating, unincorporated Maricopa County no longer requires a permit for an in-kind storage tank replaced by a licensed contractor, and Scottsdale requires a Water Heater Permit. The exemptions stop at bigger changes — a tankless conversion, more gas input, relocation, or new venting. See the verified notes for Phoenix, Mesa, Scottsdale, and unincorporated Maricopa County.

Typically needs a permit

Converting a gas storage tank to a tankless unit, increasing gas input, relocating the water heater, or changing venting or gas piping — plus any replacement in a jurisdiction that doesn't exempt like-for-like units. Exemptions written for licensed contractors may not cover a homeowner's own replacement.

Usually doesn't (general norm)

Like-for-like replacements in jurisdictions that exempt them — for example, an in-kind unit installed by a licensed contractor at a one- or two-family home in Phoenix
Replacing a thermostat, heating element, or anode rod on the existing heater
Draining, flushing, or other routine maintenance

Documents & plans generally required

Plumbing permit application (with gas scope for gas units) where a permit is required
ROC license number and class
Model, capacity, and input rating of the new unit
Gas piping sizing if input increases, which is common with tankless conversions
Venting details for gas units
Location details for garage installations, including protection from vehicle impact where required

Common reasons water heater replacement applications get bounced

Code-rooted patterns across Arizona — not a city-specific rejection rate.

Tankless conversion treated as a like-for-like replacement without gas sizing
Temperature and pressure relief valve discharge not piped to an approved location
No shutoff valve on the cold-water supply
Venting or combustion air inadequate for a gas unit
Garage installation without required protection from vehicle impact
A homeowner's own replacement relying on an exemption that requires a licensed contractor

The inspection sequence

A typical order — the number of stops and exact sequence vary by jurisdiction and scope.

1Final inspection with the heater installed, gas connection tested, and venting in place, where a permit is required
2Some jurisdictions allow remote video inspections for water heater permits

Licensing — who can pull it

Water heater replacement in Arizona is plumbing work done by an ROC-licensed plumbing contractor — R-37 (residential), CR-37 or CR-77 (dual), or C-37 (commercial). The R-37 description covers water and gas piping systems but doesn't name water heaters, so confirm your class with the Registrar of Contractors. Arizona's handyman exemption (for jobs under $1,000) doesn't apply to work that requires a building permit, and it never covers gas connections.

How this works in your Arizona city

Cities marked have verified local data — portal, fee schedule, adopted code edition, and local permit notes sourced from public city and county documents. Every city page links to its official building department.

Phoenix Mesa Scottsdale Unincorporated Maricopa County

Frequently asked questions

Do I need a permit to replace a water heater in Arizona?

It depends on the jurisdiction. Phoenix exempts an in-kind replacement at a one- or two-family home done by a licensed contractor; Mesa exempts units of equal or lesser rating; unincorporated Maricopa County no longer requires a permit for an in-kind storage tank replaced by a licensed contractor; and Scottsdale requires a Water Heater Permit, issued as a Minimum Permit.

Does switching to a tankless water heater change anything?

Usually. Mesa requires a permit to replace a gas storage water heater with a tankless unit, unincorporated Maricopa County's exemption doesn't cover on-demand units, and a gas input increase generally brings gas piping sizing into the job.

Can a handyman replace a water heater in Arizona?

Arizona's handyman exemption doesn't apply to work that requires a building permit and never covers gas connections. Several local exemptions also specify replacement by a licensed contractor.

Who can pull a water heater permit in Arizona?

An ROC-licensed plumbing contractor (R-37, CR-37, CR-77, or C-37), who signs a statement on the application giving their license number.

Other common jobs

AC changeout Battery storage EV charger install All jobs All Arizona guides

Want getPermit to map your city in depth?

Join the waitlist with your city and trade. We prioritize the jurisdictions our early users actually work in — and we'll never invent fees or timelines we haven't verified.

Join the waitlist