Mechanical / HVAC Permit in Phoenix, Arizona
Mechanical and HVAC work in Phoenix is governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC) as adopted with Phoenix amendments under the 2024 Phoenix Building Construction Code (Ordinance G-7397). Residential mechanical/HVAC work is permitted on the Residential Construction Permit / Plan Review Application (TRT/DOC/00030), which carries a combined Mech/Plumb plan-review line and a Mechanical Energy Code Compliance submission option. Permit fees follow the valuation-based Table A; a separate flat mechanical fee table is not published.
Verified 2026-06-29 · Source
When you need this permit
- Mechanical/HVAC work must comply with the 2024 IMC and 2024 IFGC as adopted and amended in the 2024 Phoenix Building Construction Code (Ordinance G-7397)
- Apply on the Residential Construction Permit / Plan Review Application (TRT/DOC/00030); the application's Plan Review Type includes a combined Mech/Plumb review line, and Submissions include a Mechanical Energy Code Compliance option
- As a property owner intended for sole occupancy and not offered for sale or rent within one year of completion you are not required to use a licensed contractor (ARS 32-1121.A.5); otherwise an Arizona ROC-licensed contractor is required
Required documents
- Req
Residential Construction Permit / Plan Review Application (TRT/DOC/00030)
Universal residential application used to permit mechanical/HVAC work; carries a Mech/Plumb plan-review line and a Mechanical Energy Code Compliance submission option. Available on the PDD Residential Applications & Checklists page (dsd_trt_pdf_00030.pdf).
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Mechanical / HVAC permit — valuation-based (Table A) | $1–$1,000: $195 base fee; $1,001–$10,000: $195 on first $1,000 plus $12 per additional $1,000; $10,001–$50,000: $303 on first $10,000 plus $10 per additional $1,000. Larger projects per Table A tiers. | PDD Fee Schedule, Table A (Ordinance G-7465, effective 1/20/2026, Appendix A.2). Mechanical work is permitted under the valuation-based building permit fee; there is no separate flat mechanical fee table. |
Review timeline
~1–10 business days
Typical estimate — confirm current times with the Phoenix building department
Inspection process
- 1
Pre-drywall (rough mechanical) — per the residential inspection sequence
Before insulation and drywall, rough mechanical is inspected. Phoenix does not publish a mechanical-only inspection sequence; mechanical is inspected within the published residential inspection critical points (Residential Inspections page).
- 2
Final (HVAC equipment, registers, gas vents) — per the residential inspection sequence
At final, heating registers and return-air grills, gas vents and combustion-air grills, and HVAC equipment are among the items inspected when the interior is drywalled (Residential Inspections page).
Tips
- Phoenix adopted the 2024 IMC and 2024 IFGC with Phoenix amendments.
- Mechanical/HVAC work is permitted on the universal Residential Construction Permit / Plan Review Application (TRT 00030); there is no separate mechanical-only application.
- Mechanical work is charged under the valuation-based Table A, not a separate flat-fee mechanical schedule.
Frequently asked questions
- Do I need a permit to replace my HVAC unit in Phoenix?
- Yes. HVAC change-outs are permitted on the Residential Construction Permit / Plan Review Application (TRT 00030). Work must comply with the 2024 International Mechanical Code and 2024 International Fuel Gas Code, and the permit fee follows the valuation-based Table A. Source: City of Phoenix Building Code page (Ordinance G-7397) and PDD Fee Schedule (Ordinance G-7465).
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Phoenix Planning & Development Department — official building department
- Building Code (2024 PBCC adopted codes incl. 2024 IMC & IFGC) | City of Phoenix PDD
- Residential Construction Permit / Plan Review Application (TRT 00030, Mech/Plumb review line) — PDF
- Residential Inspections | City of Phoenix PDD
- PDD Fee Schedule (Ordinance G-7465, effective 1/20/2026) — PDF
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Phoenix building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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