Mechanical / HVAC Permit in Rexburg, Idaho

Rexburg requires a mechanical / hvac permit for: Mechanical permit required for installation, alteration, or repair of HVAC systems; Governed by the 2018 IMC and 2018 IFGC as adopted by the City of Rexburg; Charged as a separate per-discipline fee alongside building/electrical/plumbing fees on new residential and multi-family projects; For duplex conversions: separate conditioned-air ducting and furnace required per dwelling unit (units cannot share air); gas lines may not run through one unit's building to service another; a licensed mechanical contractor is required to install gas lines; A licensed (non-owner) mechanical contractor is required for rental-property work; Apply through the City's Public Portal (apply.rexburg.org/publicapp) or the Mechanical/Electrical/Plumbing Misc. Project application for standalone mechanical work. If your project isn't listed, confirm with City of Rexburg Building Department at (208) 372-2166 before starting work.

In Rexburg, the published Residential Mechanical Fee (per discipline) — less than 1,500 sq ft is: $130.00. Additional published fees: Residential Mechanical Fee (per discipline) — 1,500 to 2,500 sq ft — $195.00; Residential Mechanical Fee (per discipline) — 2,500 to 3,500 sq ft — $260.00; Residential Mechanical Fee (per discipline) — 3,500 to 4,500 sq ft — $325.00; Residential Mechanical Fee (per discipline) — 4,500 to 5,500 sq ft — $390.00; Residential Mechanical Fee (per discipline) — 5,500 to 6,500 sq ft — $455.00; Multi-Family Mechanical Fee formula — $65.00 per unit + $130.00 per building. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Rexburg does not publish a plan-review timeline for this permit. Contact City of Rexburg Building Department at (208) 372-2166 for current turnaround.

You'll need: Mechanical/Electrical/Plumbing Misc. Project Application. See the required-documents checklist on this page for details on each.

Rexburg requires 2 inspection(s) for a mechanical / hvac permit, in order: HVAC (Mechanical) Rough-In & Gas Pressure Test, HVAC (Mechanical) Final. Schedule each through City of Rexburg Building Department ((208) 372-2166).

Apply through City of Rexburg Building Department at 35 N 1st East, Rexburg, ID 83440. Phone: (208) 372-2166, email: building@rexburg.org. Office hours: City Hall Open Hours: M-Th 7:30 am - 5:30 pm, F 7:30 am - 12:30 pm. Main City switchboard: (208) 359-3020; Building Department direct line: (208) 372-2166.. Official information: https://www.rexburg.org/o/cor/page/building.

Rexburg, Idaho has adopted: The City of Rexburg operates its own Building Department, which handles ALL trade permitting (building, mechanical, electrical, plumbing, and fire) in-house — it is not a DOPL-administered jurisdiction for permit issuance. The Building Official 'enforces and interprets the building code,' 'supervises the mechanical, electrical, plumbing, and fire inspectors,' and the Building Department's stated scope explicitly covers mechanical, electrical, and plumbing programs as sub-programs of the Building Department itself, each with dedicated per-discipline permit fees. Source: City of Rexburg Building page (rexburg.org/o/cor/page/building).; 2018 International Building Code (IBC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page (rexburg.org/o/cor/page/codes-standards).; 2018 International Residential Code (IRC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2023 National Electrical Code (NEC / NFPA 70), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page; also referenced on the Electrical Information page.; 2018 International Mechanical Code (IMC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2017 Idaho Plumbing Code (IAPMO), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Fuel Gas Code (IFGC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Energy Conservation Code (IECC) — both the Commercial and Residential chapters, adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Existing Building Code (IEBC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Fire Code (IFC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2016 NFPA 72 (National Fire Alarm and Signaling Code), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; Plans submitted for commercial projects must be stamped by a licensed Idaho architect or engineer. Source: City of Rexburg Codes & Standards page.; The permitting process takes up to 10 business days from initial application to issuance of the permit; the process can be longer depending on backlog; the permit process is on a first-come, first-served basis. Source: City of Rexburg Codes & Standards page.; Rexburg Development Code (Title/Code 1200) governs zoning, including short-term rental registration and duplex-conversion zoning eligibility (density-based lot-size minimums by zone). Source: Rexburg Development Code online, rexburg.municipalcodeonline.com/book?type=development.. Local amendments apply — see the Rexburg overview page for the full list.