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Mechanical / HVAC Permit in Unincorporated Weber County, Utah

Required for heating, ventilation, and air conditioning installations, replacements, and ductwork modifications in Unincorporated Weber County. Governed by the 2024 International Mechanical Code (IMC) as adopted by Utah Code § 15A-2-103 (effective July 1, 2026).

Verified 2026-07-16 · Source

When you need this permit

  • Furnace or boiler installation or replacement
  • Air conditioning system installation or replacement
  • Ductwork installation or major modification
  • Evaporative cooler installation
  • Fireplace or wood-burning stove installation

Required documents

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Fee schedule

Mechanical PermitWeber County Code § 12-3-8(1) (Ord. 2020-25, 12/22/2020)
$100.00
State SurchargeWeber County Code § 12-3-8(1) (Ord. 2020-25, 12/22/2020)
1% of the permit fee
Re-inspection FeeWeber County Code § 12-3-8(3) (Ord. 2020-25, 12/22/2020)
$115.00

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Weber County building department
~3–14 business days

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

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Inspection process

  1. 1

    Rough-In (Four-Way)

    Ductwork and gas piping installed, before walls closed — completed as part of the Four-Way inspection per the Weber County Required Inspections List

  2. 2

    Final

    Equipment operational, combustion air verified, gas pressure tested, thermostat functional

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

Tips

  • Weber County charges a flat $100.00 mechanical permit fee per Code § 12-3-8(1) (Ord. 2020-25).
  • Like-for-like furnace and AC replacements still require a mechanical permit in Unincorporated Weber County.
  • High-efficiency furnaces require condensate drain lines — plan routing before installation.
  • Gas line work in connection with appliance installation may require coordination with the plumbing permit — contact the Building Inspection Department at (801) 399-8770.

Frequently asked questions

Yes. Unincorporated Weber County requires a mechanical permit for all furnace replacements, including like-for-like swaps. The flat fee is $100.00 plus 1% state surcharge per Code § 12-3-8(1).

A flat $100.00 mechanical permit fee plus a 1% state surcharge, per Weber County Code § 12-3-8(1) (Ord. 2020-25, 12/22/2020). Re-inspection is $115.00.

Plan review for a mechanical / hvac permit in Unincorporated Weber County typically runs 3–14 business days. This is an estimate, not a published figure — confirm current review times with Weber County Building Inspection Department at (801) 399-8770.

You'll need: Online Building Permit Application. Depending on your project, Unincorporated Weber County may also ask for: Equipment Specifications; Mechanical Plan. See the required-documents checklist on this page for details on each.

Unincorporated Weber County requires 2 inspection(s) for a mechanical / hvac permit, in order: Rough-In (Four-Way), Final. Schedule each through Weber County Building Inspection Department ((801) 399-8770).

Apply through Weber County Building Inspection Department at 2380 Washington Blvd., Suite 270, Ogden, UT 84401. Phone: (801) 399-8770. Office hours: Mon–Fri 8:00 AM – 5:00 PM (excluding legal holidays). Official information: https://www.webercountyutah.gov/inspection/.

Unincorporated Weber County, Utah has adopted: 2024 International Building Code (IBC) — Utah Code § 15A-2-103(1)(a); effective July 1, 2026 (replaces 2021 IBC). Weber County Code § 12-3-1 adopts the specific editions as adopted and amended by the State of Utah per Title 15A.; 2021 International Residential Code (IRC) — Utah Code § 15A-2-103(1)(b); continues in force after July 1, 2026; 2024 International Plumbing Code (IPC) — Utah Code § 15A-2-103(1)(d); effective July 1, 2026 (replaces 2021 IPC); 2024 International Mechanical Code (IMC) — Utah Code § 15A-2-103(1)(e); effective July 1, 2026 (replaces 2021 IMC); 2024 International Fuel Gas Code (IFGC) — Utah Code § 15A-2-103(1)(f); effective July 1, 2026 (replaces 2021 IFGC); 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g), current version effective 7/1/2026, superseded 1/1/2027, re-read live 2026-07-16 at le.utah.gov. Weber County Code § 12-3-1 (weber.municipalcodeonline.com, re-read live 2026-07-16) adopts codes by reference to Utah Code Title 15A generally and does not itself name a specific NEC edition; no '2020 NEC' reference could be found in the current codified text.; 2024 International Energy Conservation Code (IECC) — Utah Code § 15A-2-103(1)(h); effective July 1, 2026 (replaces 2021 IECC). Note: Utah statewide residential energy provisions effectively follow 2015 IECC residential per § 15A-2-104.; 2024 International Existing Building Code (IEBC) — Utah Code § 15A-2-103(1)(i); effective July 1, 2026 (replaces 2021 IEBC); 2024 International Swimming Pool and Spa Code (ISPSC) — Utah Code § 15A-2-103(1)(n); effective July 1, 2026 (replaces 2021 ISPSC).

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 Unincorporated Weber 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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