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Mechanical / HVAC Permit in Casper, Wyoming

Required for heating, cooling, ventilation, and fuel gas equipment installations in Casper. Governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC).

Verified 2026-07-16 · Source

When you need this permit

  • Mechanical Permit Application submitted to the Building Inspection Division
  • Fee based on the value of the work per the City's combined valuation-based fee schedule
  • Gas piping/line work inspected under the 2024 IFGC

Required documents

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Fee schedule

Initial Building Permit FeeCity of Casper Permit Fee Schedule (eff. February 2, 2026)
$35
Combined Building/Electrical/Plumbing/Mechanical Permit Fee — valuation-basedCity of Casper Permit Fee Schedule (eff. February 2, 2026)
Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof

Review timeline

Plan reviewTypical estimate — confirm current times with the Casper building department
~1–10 business days

How long did your Mechanical / HVAC Permit permit actually take in Casper?

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

Inspection process

  1. 1

    Rough Mechanical

    Performed after structure is framed and dried in, and mechanical components are roughed in, before trim out

  2. 2

    Final Mechanical

    Performed when all mechanical work is 100% complete; typically coordinated with other trades as part of Final/C.O. inspection

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

Tips

  • Casper uses the 2024 IMC for mechanical work and the 2024 IFGC for gas piping — both part of the City's adopted 2024 I-Codes package.
  • There is no separate flat-rate schedule for furnace/AC change-outs published by Casper; fees are calculated off the combined valuation table based on job cost.

Frequently asked questions

Casper requires a mechanical / hvac permit for: Mechanical Permit Application submitted to the Building Inspection Division; Fee based on the value of the work per the City's combined valuation-based fee schedule; Gas piping/line work inspected under the 2024 IFGC. If your project isn't listed, confirm with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254 before starting work.

In Casper, the published Initial Building Permit Fee is: $35. Additional published fees: Combined Building/Electrical/Plumbing/Mechanical Permit Fee — valuation-based — Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a mechanical / hvac permit in Casper typically runs 1–10 business days. This is an estimate, not a published figure — confirm current review times with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254.

You'll need: Mechanical Permit Application. See the required-documents checklist on this page for details on each.

Casper requires 2 inspection(s) for a mechanical / hvac permit, in order: Rough Mechanical, Final Mechanical. Schedule each through City of Casper Community Development Department — Building Inspection Division ((307) 235-8254).

Apply through City of Casper Community Development Department — Building Inspection Division at 200 N David St, Casper, WY 82601. Phone: (307) 235-8254, email: building@casperwy.gov. Office hours: Mon–Fri 8:00 AM–5:00 PM (in-person/phone code consultation available 8:00–9:00 AM and 4:00–5:00 PM). Official information: https://www.casperwy.gov/services/building_and_inspections/index.php.

Casper, Wyoming has adopted: 2024 International Building Code (IBC); 2024 International Residential Code (IRC); 2024 International Fire Code (IFC); 2024 International Existing Building Code (IEBC); 2024 International Energy Conservation Code (IECC) — applies to the building thermal envelope ONLY per City of Casper adoption note; 2024 International Plumbing Code (IPC); 2024 International Fuel Gas Code (IFGC); 2024 International Mechanical Code (IMC); 2023 NFPA 70 National Electrical Code (NEC); ICC A117.1-2009 Accessible and Usable Buildings and Facilities. Local amendments apply — see the Casper overview page for the full list.

The 2024 International Mechanical Code (IMC) governs HVAC/mechanical work in Casper, with gas piping governed by the 2024 International Fuel Gas Code (IFGC).

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 Casper 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 in other cities

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