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Mechanical / HVAC Permit in Unincorporated Washoe County, Nevada

Required for heating, ventilation, air conditioning, fuel gas, and related mechanical installations in unincorporated Washoe County. Covers furnaces, A/C, heat pumps, ductwork, gas piping, gas fireplaces, wood stoves, pellet stoves, and evaporative coolers.

Verified 2026-06-30 · Source

When you need this permit

  • Install or change any part of a heating or cooling system
  • Furnace, A/C, heat pump, or boiler installation or replacement
  • Gas piping installation or pressure testing
  • Wood stoves, pellet stoves, or gas fireplace installation
  • Submit via ONe NV permit portal or EZ Permit form for basic HVAC or fireplace work

Required documents

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Fee schedule

Permit Issuance — base feeWCC Chapter 100, Appendix A, Table 4 — added to all unit fees below
$45.00
Forced-air or gravity furnace (≤100,000 Btu/h) including ducts and ventsTable 4, Unit Fee Schedule item 1
$20.00
Forced-air or gravity furnace (>100,000 Btu/h) including ducts and ventsTable 4, item 1
$26.00
Suspended heater, recessed wall heater, or floor-mounted unit heaterTable 4, item 1
$20.00
Repair or addition to heating/cooling/absorption unit or systemTable 4, item 3 — applies to A/C replacements, repairs, evaporative cooler additions
$13.00
Boiler or compressor ≤3 HP (or absorption system ≤100,000 Btu/h)Table 4, item 4
$20.00
Evaporative cooler (non-portable)Table 4, item 6
$10.00
Ventilation fan connected to a single ductTable 4, item 7
$7.00
Gas piping system, 1–4 outletsTable 4 — fuel-gas piping
$5.00
Wood stove or insert (including fireplace insert)WCC Chapter 100, Appendix A, Table 2, item 6 — separate flat fee category
$45.00 flat

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Washoe County building department
~3–15 business days

How long did your Mechanical / HVAC Permit permit actually take in Unincorporated Washoe County?

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Inspection process

  1. 1

    Gas Piping Pressure Test

    Required before concealing gas piping — verify no leaks under test pressure

  2. 2

    Rough-In

    Ductwork and mechanical equipment rough-in before walls closed — verify clearances and support

  3. 3

    Final

    Equipment operational, combustion air verified, venting correct

See the full Unincorporated Washoe County inspection guide — scheduling & re-inspection fees →

Tips

  • EZ Permits are available for licensed contractors for HVAC work and for fireplace installations (wood/pellet/gas/electric). Contractor
  • Washoe County adopts both the IMC and UMC — for residential projects the designer may select which code applies, but must use the whole selected code.
  • Manometer testing for gas lines requires a separate license and exam fee through the Washoe County Building Program ($75 for initial test + license).

Frequently asked questions

Unincorporated Washoe County requires a mechanical / hvac permit for: Install or change any part of a heating or cooling system; Furnace, A/C, heat pump, or boiler installation or replacement; Gas piping installation or pressure testing; Wood stoves, pellet stoves, or gas fireplace installation; Submit via ONe NV permit portal or EZ Permit form for basic HVAC or fireplace work. If your project isn't listed, confirm with Washoe County Building Program at (775) 328-2020 before starting work.

In Unincorporated Washoe County, the published Permit Issuance — base fee is: $45.00. Additional published fees: Forced-air or gravity furnace (≤100,000 Btu/h) including ducts and vents — $20.00; Forced-air or gravity furnace (>100,000 Btu/h) including ducts and vents — $26.00; Suspended heater, recessed wall heater, or floor-mounted unit heater — $20.00; Repair or addition to heating/cooling/absorption unit or system — $13.00; Boiler or compressor ≤3 HP (or absorption system ≤100,000 Btu/h) — $20.00; Evaporative cooler (non-portable) — $10.00; Ventilation fan connected to a single duct — $7.00; Gas piping system, 1–4 outlets — $5.00; Wood stove or insert (including fireplace insert) — $45.00 flat. 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 Unincorporated Washoe County typically runs 3–15 business days. This is an estimate, not a published figure — confirm current review times with Washoe County Building Program at (775) 328-2020.

You'll need: Residential Building Permit Application (2023) or EZ Permit — HVAC / Fireplace. See the required-documents checklist on this page for details on each.

Unincorporated Washoe County requires 3 inspection(s) for a mechanical / hvac permit, in order: Gas Piping Pressure Test, Rough-In, Final. Schedule each through Washoe County Building Program ((775) 328-2020).

Apply through Washoe County Building Program at 1001 E. Ninth Street, Building A, Reno, NV 89512. Phone: (775) 328-2020, email: building@washoecounty.gov. Office hours: Monday–Friday 8:00 AM – 4:00 PM. Official information: https://www.washoecounty.gov/building/.

Unincorporated Washoe County, Nevada has adopted: 2024 International Building Code (IBC), Chapters 1–35 — effective July 1, 2025 (compliance mandatory January 1, 2026); adopted per Washoe County Code Chapter 100 with 2024 Northern Nevada Amendments; 2024 International Residential Code (IRC), Chapters 1–44 — effective July 1, 2025; 2024 International Existing Building Code (IEBC) — effective July 1, 2025; 2024 International Energy Conservation Code (IECC) — effective July 1, 2025; Nevada statewide energy floor per NRS 701.220 (eff. 2024-08-18) also applies; 2024 International Fuel Gas Code (IFGC), Chapters 1–8 — effective July 1, 2025; 2024 International Mechanical Code (IMC), Chapters 1–15 — effective July 1, 2025; 2024 Uniform Plumbing Code (UPC) — effective July 1, 2025; 2024 Uniform Mechanical Code (UMC) — effective July 1, 2025; 2024 International Wildland-Urban Interface Code (IWUIC) — effective July 1, 2025; 2024 International Swimming Pool and Spa Code (ISPSC) — effective July 1, 2025; 2023 National Electrical Code (NEC) — effective July 1, 2025; 2024 NFPA 54 and NFPA 58 — effective July 1, 2025; 2024 Northern Nevada Amendments by the Northern Nevada Chapter of the International Code Council (NNICC) — incorporated by reference. Local amendments apply — see the Unincorporated Washoe County overview page for the full list.

Yes. Furnace replacement requires a mechanical permit. The fee is $45 base plus $20 for the furnace unit (≤100,000 Btu/h), totaling $65 minimum. Submit via www.onenv.us or use the EZ Permit — HVAC form for licensed contractors.

Sources & verification

Verified against official sources. Last reviewed 2026-06-30.

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 Washoe County 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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