Mechanical / HVAC Permit in Chandler, Arizona
Mechanical and HVAC work in Chandler is governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC) with Chandler amendments (Ordinance No. 5108). Permits are required for new mechanical systems, additions to, or modifications of existing mechanical systems. Like-for-like replacement of furnaces and evaporative coolers is exempt from permit. Gas permits require a riser schematic showing all gas line runs, BTU ratings of all appliances, pipe sizes and types, and burial depth for underground lines.
Verified 2026-06-29 · Source
When you need this permit
- Mechanical/HVAC work must comply with the 2024 IMC and 2024 IFGC with Chandler amendments (Ordinance No. 5108, City Code Chapter 29, Articles V and VII)
- Apply through the Citizen Access portal or walk-in to 215 E. Buffalo St.
- Like-for-like replacement of furnaces and evaporative coolers does NOT require a permit (Homeowner's Building Permit Manual)
- For gas work: provide a gas riser schematic showing the length of all sections of gas line starting at the meter, all existing and proposed appliances, total BTU rating of each appliance, line sizes, line types, and trench/burial depth (pipe must be 12 inches below grade minimum)
- Gas system pressure test: not less than 1.5 times maximum working pressure but no less than 3 psig; test duration not less than 10 minutes; test conducted through the open valve and flex line; flex line must be capped at the appliance connection
- PE (polyethylene) plastic pipe requires minimum 8-, 12-, or 18-inch-deep trench and a continuous insulated 18-gauge copper tracer wire; PE not allowed beneath any building slab or structure; galvanized fittings or piping prohibited in underground gas systems
Required documents
- Req
Building Permit Application
Chandler permit application used for mechanical/HVAC work; available at Citizen Access portal
- Opt
Gas Riser Schematic
Required for gas line work; shows all sections of gas line from meter, all appliances, BTU ratings, pipe sizes, pipe types, and burial depth
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Miscellaneous minor residential work — flat fee (minor gas outlets combined with minor electrical/plumbing) | $100.00 | City of Chandler Fee Schedule, Section 4.6.4(q): 'Miscellaneous minor residential work (1–6 gas outlets, 1–2 branch electrical circuits, 1–6 plumbing openings, etc.) — $100.00.' Applies to minor scope only. |
| Mechanical/HVAC permit — valuation-based (larger projects) | Per valuation-based fee table (§4.6.1); plan review 65% of permit fee | For mechanical/HVAC work not covered by the miscellaneous flat fee, fees follow the valuation-based table (City of Chandler Fee Schedule §4.6.1, Res. 4703). |
Review timeline
~1–10 business days
Typical estimate — confirm current times with the Chandler building department
Inspection process
- 1
Rough heating and ventilation (groundwork)
Ductwork installed but not covered (groundwork inspection).
- 2
Rough heating and ventilation
All rough-in mechanical work installed but not covered.
- 3
Final inspection
All mechanical/HVAC work completed per approved plans and 2024 IMC/IFGC with Chandler amendments.
Tips
- Like-for-like replacement of furnaces and evaporative coolers does NOT require a permit in Chandler.
- Chandler adopted the 2024 IMC and 2024 IFGC (not the 2023 editions) with local amendments — verify work against the 2024 editions.
- Underground gas piping must be 12 inches minimum below grade; galvanized fittings or piping are prohibited underground.
- Gas system pressure test must be at least 3 psig for minimum 10 minutes before inspection.
Frequently asked questions
- Do I need a permit to replace my HVAC in Chandler?
- Like-for-like replacement of furnaces and evaporative coolers does NOT require a permit per the Homeowner's Building Permit Manual. New HVAC systems, additions to, or modifications of existing mechanical systems generally DO require a permit and must comply with the 2024 IMC with Chandler amendments. Source: Chandler Homeowner's Building Permit Manual (Rev. 4/09/26), 'Work Exempt from Permit' section, item 10.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Chandler Development Services Department — Building Safety — official building department
- Building Safety: Plan Review, Permits and Inspections | City of Chandler
- Homeowner's Building Permit Manual (Rev. 4/09/26) — Electrical and Gas Permits section — PDF
- Chandler Amendments to the 2024 International Construction Codes — 2024 IMC (Article V), 2024 IFGC (Article VII) — PDF
- City of Chandler Fee Schedule (§4.6.1, §4.6.4(q)) — 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 Chandler building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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