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Mechanical / HVAC Permit (Stand-Alone) in Mesa, Arizona

Stand-alone mechanical/HVAC permits are required in Mesa for separate mechanical or fuel-gas work not included in a building permit. Work must comply with the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC) with Mesa local amendments (Mesa City Code Title 4). Mesa publishes 2024 IMC (Mechanical) and 2024 IFGC (Fuel/Gas) checklists. Note: replacing an A/C unit with one using the same or less electrical load and same connections does NOT require a permit.

Verified 2026-07-16 · Source

When you need this permit

  • Mechanical/HVAC work must comply with the 2024 IMC and 2024 IFGC with Mesa local amendments (Mesa City Code Title 4)
  • Stand-alone mechanical permits (not part of a building permit) use the Residential Rate Table or Commercial Rate Table based on valuation
  • No permit required: A/C unit replacement where the new unit uses the same or less electrical load and same connections as the existing unit
  • Permit required: changing the electrical connections during A/C replacement; new mechanical systems; modifications to existing mechanical systems
  • Apply through the DIMES online permit system

Required documents

Check off what you have — your progress is saved on this device.

Fee schedule

Stand-alone mechanical permit — Residential Rate TableMesa Development Services Schedule of Fees and Charges (Dec 2025). Stand-alone permits use the Residential Rate Table for residential work. Valuation determined by applicant and verified by Plans Examiner.
$0–$8,333: $220; $8,334–$16,667: $330; $16,668–$24,999: $440; $25,000–$200,000: $500 plus $6/each $1,000 over $25,000

Review timeline

Plan reviewMesa’s published plan-review target
10–10 business days

How long did your Mechanical / HVAC Permit (Stand-Alone) permit actually take in Mesa?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Mechanical inspection per stage

    Inspections at each stage of mechanical work prior to cover. Schedule via DIMES, text to 480-644-2428, or phone.

See the full Mesa inspection guide — scheduling & re-inspection fees →

Tips

  • A/C unit replacement with a unit using the same or less electrical load and same connections does NOT require a permit in Mesa. Changing the electrical connections DOES.
  • Mesa adopted the 2024 IMC and 2024 IFGC with local amendments — verify work against the 2024 editions.
  • Mesa publishes 2024 IMC (Mechanical) and 2024 IFGC (Fuel/Gas) checklists — available on the Construction Forms, Guides & Checklists page.

Frequently asked questions

No permit is required if the new air conditioning unit uses the same or less electrical load and the same connections as the existing unit. If you are changing the electrical connections, a construction permit is required. Source: City of Mesa Residential Construction FAQ.

In Mesa, the published Stand-alone mechanical permit — Residential Rate Table is: $0–$8,333: $220; $8,334–$16,667: $330; $16,668–$24,999: $440; $25,000–$200,000: $500 plus $6/each $1,000 over $25,000. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Mesa's published plan-review target for a mechanical / hvac permit (stand-alone) is 10–10 business days.

Depending on your project, Mesa may also ask for: 2024 IMC (Mechanical) Checklist; 2024 IFGC (Fuel / Gas) Checklist. See the required-documents checklist on this page for details on each.

Mesa requires 1 inspection(s) for a mechanical / hvac permit (stand-alone), in order: Mechanical inspection per stage. Schedule each through City of Mesa Development Services Department — Permit Services (480-644-4273).

Apply through City of Mesa Development Services Department — Permit Services at 55 N. Center St., Mesa, AZ 85201. Phone: 480-644-4273, email: PermitServices@mesaaz.gov. Office hours: Monday–Thursday 7:00 AM – 6:00 PM; Friday (Essential Services Call Center only) 8:00 AM – 12:00 PM. Official information: https://www.mesaaz.gov/Business-Development/Development-Services/Building-Permit-Plan-Review.

Mesa, Arizona has adopted: 2024 International Building Code (IBC) — adopted by Mesa City Council; effective January 8, 2026 (applies to permit applications submitted on or after that date); local amendments published in Mesa City Code Title 4 — Building Regulations (Municode); 2024 International Residential Code (IRC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; existing 2018 IRC standard plans valid for 6 months after adoption; 2024 International Fire Code (IFC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Plumbing Code (IPC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Mechanical Code (IMC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Fuel Gas Code (IFGC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Energy Conservation Code (IECC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Existing Building Code (IEBC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2024 International Swimming Pool and Spa Code (ISPSC) — effective January 8, 2026; Mesa City Code Title 4 local amendments; 2023 National Electrical Code (NEC) — Mesa City Code Title 4 local amendments; 2023 NEC (Electrical) Checklist published by Development Services; ADA 2017 / ICC A117.1 — referenced for accessibility compliance; 2025 NFPA 13 (Sprinklers) and 2025 NFPA 72 (Fire Alarm) — referenced for fire protection systems. Local amendments apply — see the Mesa overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

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 Mesa building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Mechanical / HVAC Permit (Stand-Alone) in other cities

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