Mechanical / HVAC Permit in Unincorporated Campbell County, Wyoming
VerifiedRequired for heating, ventilation, air conditioning, and fuel gas installation work in unincorporated Campbell County. Governed by the 2024 International Mechanical Code (IMC) per Chapter 4 Section 5, and the 2024 International Fuel Gas Code (IFGC) per Chapter 4 Section 7.
Verified 2026-07-01 · Source
When you need this permit
- Mechanical Permit required for furnace/AC/heat pump installation, ductwork, and gas piping — required even where the associated Building Permit is exempt
- Gas systems with a design flow requiring DEQ oversight (non-domestic wastewater or specific commercial cases) may require separate DEQ permitting
Required documents
- Req
Building Permit & Zoning Certificate Application
Mechanical work is applied for through the same county application
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Mechanical Permit (residential) | No fee | Chapter 4 Section 1.8.E 'All Other Permits: No fees.' |
Review timeline
~1–10 business days
Typical estimate — confirm current times with the Unincorporated Campbell County building department
Inspection process
- 1
Rough-In/Equipment
Equipment installation and ductwork before walls closed
- 2
Final
Equipment operational, venting/combustion air verified
Tips
- There is no fee for a residential mechanical/HVAC permit in the unincorporated county.
- Campbell County adopted the International Mechanical Code (IMC) for all occupancies — it does not use a separate Uniform Mechanical Code for single-family residential.
Frequently asked questions
- How much does an HVAC permit cost in unincorporated Campbell County?
- No fee. Chapter 4 Section 1.8.E ('All Other Permits: No fees') covers residential mechanical/HVAC permits.
Sources & verification
Verified against official sources. Last reviewed 2026-07-01.
- Campbell County Department of Public Works — Building, Planning & Zoning Division — official building department
- Campbell County Chapter 4 Rules Regulating Construction, Section 5 (IMC 2024), Section 7 (IFGC 2024), and Section 1.8.E (fees)
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 Unincorporated Campbell County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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