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Mechanical / HVAC Permit (Furnace, Air Conditioning, Fireplace) in Johnstown, Colorado

Required for furnace, air conditioning, and fireplace installation or replacement in Johnstown. Governed by the 2024 IMC/IFGC as adopted (per the Building Codes landing page).

Verified 2026-07-06 · Source

When you need this permit

  • Furnace permit required for 'installing or replacing a furnace in a residential or commercial building'
  • Air Conditioning permit required for AC installation/replacement
  • Fireplace permit required for new/replacement fireplace installation, per the Town's Building Permits requirements page
  • Furnace and Air Conditioning permits require licensed/registered mechanical and electrical contractor information
  • Furnace permit application must state the furnace capacity in BTUs

Required documents

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Fee schedule

Building/Mechanical Permit Fee (general IBC/IRC valuation table)No separate flat-fee mechanical schedule was found published in the 2026 Fee Schedule; billed under the same valuation table as building permits generally
$23.50 minimum, scaling per valuation tiers
Building Re-inspection, After Hours, Plan Resubmittal
$47.00 per hour

Review timeline

Plan reviewJohnstown’s published plan-review target
0–7 business days

How long did your Mechanical / HVAC Permit (Furnace, Air Conditioning, Fireplace) permit actually take in Johnstown?

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

Inspection process

  1. 1

    Mechanical Rough (incl. Gas Test where applicable)

    Equipment/ductwork before concealment

  2. 2

    Mechanical Final

    Equipment operational, combustion air and venting verified

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

Tips

  • Furnace and AC permits both require licensed mechanical AND electrical contractor information on the application — don't overlook the electrical contractor field even for a straightforward equipment swap.
  • Despite being labeled 'Review Not Required' on the Building Permit Fees page, Furnace and AC permits still carry a published up-to-7-business-day processing window per their own dedicated project pages.

Frequently asked questions

Yes. 'Furnace' installation or replacement is listed as requiring a permit, with a published turnaround of up to 7 business days per the Town's Furnace permit page.

In Johnstown, the published Building/Mechanical Permit Fee (general IBC/IRC valuation table) is: $23.50 minimum, scaling per valuation tiers. Additional published fees: Building Re-inspection, After Hours, Plan Resubmittal — $47.00 per hour. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Johnstown's published plan-review target for a mechanical / hvac permit (furnace, air conditioning, fireplace) is 0–7 business days.

You'll need: Mechanical Permit Application (eTRAKiT); Town of Johnstown Contractor License. See the required-documents checklist on this page for details on each.

Johnstown requires 2 inspection(s) for a mechanical / hvac permit (furnace, air conditioning, fireplace), in order: Mechanical Rough (incl. Gas Test where applicable), Mechanical Final. Schedule each through Town of Johnstown Building Division (contracted operations administered by ProCode Inc., a SAFEbuilt company) (970-305-3161 (Building Official / ProCode); 970-578-9608 (Permit Processing); 970-587-4664 (Town Hall main line)).

Apply through Town of Johnstown Building Division (contracted operations administered by ProCode Inc., a SAFEbuilt company) at 201 Centennial Drive, Johnstown, CO 80534 (Building Division); Town Hall at 450 S. Parish Avenue, Johnstown, CO 80534; ProCode/SAFEbuilt satellite office at 39 S. Parish Avenue, Suite 220, Johnstown, CO 80534. Phone: 970-305-3161 (Building Official / ProCode); 970-578-9608 (Permit Processing); 970-587-4664 (Town Hall main line), email: BuildingPermits@JohnstownCO.gov (permit processing); info@procodeinc.net (ProCode/Chief Building Official). Office hours: Monday-Friday, 8 a.m. to 4 p.m. (Building Division, per Staff Directory) / 8 a.m. to 5 p.m. (Town Hall main office); inspection requests must be submitted by 4 p.m. the business day before the requested date, via phone (970-305-3161, option 1) or the Safebuilt/ProCode website; inspections conducted Monday-Friday only, excluding holidays. Official information: https://www.johnstownco.gov/211/Building-Codes.

Johnstown, Colorado has adopted: 2024 International Building Code (IBC) — Town of Johnstown Building Codes page, https://www.johnstownco.gov/211/Building-Codes, adopted per Ordinance No. 2025-274 (enacted September 15, 2025); 2024 International Residential Code (IRC), per the same ordinance and Building Codes page; 2024 International Fire Code (IFC); 2024 International Fuel Gas Code (IFGC); 2024 International Energy Conservation Code (IECC); 2024 International Mechanical Code (IMC); 2024 International Plumbing Code (IPC); 2023 National Electrical Code (NEC); Colorado Wildfire Resiliency Code, as adopted/referenced on the Town's Building Codes page; Colorado Model Electric and Solar Ready Code, as adopted/referenced on the Town's Building Codes page; Johnstown Municipal Code, Chapter 18 (Building Regulations); NOTE (data-integrity flag): Several individual project-specific pages on johnstownco.gov (Addition, Electrical, Roofing, Siding, Water Heater, Furnace, Air Conditioning, Basement Finish, Residential Solar) still display a stale 'applicable codes' footer citing the superseded 2018 I-Code suite (with only the NEC correctly updated to 2023) — this appears to be unupdated boilerplate predating Ordinance No. 2025-274's September 2025 adoption of the 2024 I-Codes. The Building Codes landing page (2024 codes) is treated as the current governing citation in this corpus; the discrepancy itself is disclosed rather than silently resolved, since the individual permit pages have not been corrected as of this review.. Local amendments apply — see the Johnstown overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-06.

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 Johnstown building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Other permits in Johnstown

Residential Building Permit (New Construction / Any New Structure)Residential Addition / Remodel Permit (including Basement Finish)Electrical PermitElectric Vehicle (EV) Charger / EVSE PermitPlumbing Permit (Water/Sewer Line Upgrade, Water Heater)Roofing Permit (Reroof)Residential Solar PermitDemolition PermitFence / Retaining Wall Permit

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