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Mechanical / HVAC Permit in Lakewood, Colorado

Required for heating, cooling, and ventilation equipment installation/replacement in Lakewood, including furnaces, air conditioners, and evaporative coolers. The City of Lakewood issues Mechanical permits directly (eTRAKiT Permit Type 'Mechanical' — Commercial/Residential, or Residential System Replacements for single trade-in/replace scopes). Governed by the 2021 International Mechanical Code (IMC) and 2021 International Fuel Gas Code (IFGC).

Verified 2026-06-30 · Source

When you need this permit

  • eTRAKiT Permit Type 'Mechanical' (Commercial/Residential) for new work or work linked to a building permit
  • eTRAKiT 'Residential System Replacements' (single-family or duplex only) subtypes: Replace Furnace, Replace Air Conditioner, Replace Furnace and Air Conditioner (requires separate Electrical and Mechanical permits), Replace Evaporative Cooler
  • All mechanical contractors must be registered with the City of Lakewood via eTRAKiT
  • As owner-occupant of a single-family detached home, a homeowner may self-permit and self-perform mechanical system replacement Owner-builder
  • Work governed by the 2021 IMC (mechanical) and 2021 IFGC (fuel gas piping) as adopted by the City of Lakewood

Required documents

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Fee schedule

Furnace Replacement (flat fee — single-family, duplex, or townhome)City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table
$80.00
Air Conditioner Replacement (flat fee — single-family, duplex, or townhome)City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table
$80.00
Furnace and Air Conditioner Installed Concurrently (flat fee)City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table
$110.00
Evaporative Cooler Replacement (flat fee — single-family, duplex, or townhome)City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table
$80.00
Other Mechanical Permit Fee (non-flat-fee commercial/complex scopes)City of Lakewood Building Permit & Inspection Fee Schedule — general mechanical work not listed in the Flat Fee table uses the valuation-based building permit fee tiers
Valuation-based per the standard Building Permit Fee table when not covered by a Flat Fee Permit line item

Review timeline

Plan reviewTypical estimate — confirm current times with the Lakewood building department
~0–0 business days

How long did your Mechanical / HVAC Permit permit actually take in Lakewood?

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

Inspection process

  1. 1

    Rough-In / Equipment

    Equipment installation and ductwork before walls closed

  2. 2

    Final

    Equipment operational, combustion air and venting verified

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

Tips

  • Furnace, A/C, and evaporative cooler replacements in single-family/duplex/townhome units are simple flat-fee permits ($80.00 each, or $110.00 for furnace+A/C installed together) — no valuation calculation needed for these specific scopes.
  • Replacing both a furnace AND adding a new air conditioner to an existing furnace requires separate Electrical AND Mechanical permits, per the eTRAKiT Permit Types guide — budget for both permit fees.
  • Single-family detached homeowners can self-perform and self-permit mechanical system replacements through eTRAKiT. Owner-builder

Frequently asked questions

Lakewood requires a mechanical / hvac permit for: eTRAKiT Permit Type 'Mechanical' (Commercial/Residential) for new work or work linked to a building permit; eTRAKiT 'Residential System Replacements' (single-family or duplex only) subtypes: Replace Furnace, Replace Air Conditioner, Replace Furnace and Air Conditioner (requires separate Electrical and Mechanical permits), Replace Evaporative Cooler; All mechanical contractors must be registered with the City of Lakewood via eTRAKiT; As owner-occupant of a single-family detached home, a homeowner may self-permit and self-perform mechanical system replacement; Work governed by the 2021 IMC (mechanical) and 2021 IFGC (fuel gas piping) as adopted by the City of Lakewood. If your project isn't listed, confirm with City of Lakewood — Public Works Department, Permit Counter (Building Division) at 303-987-7500 before starting work.

A furnace replacement in an existing single-family, duplex, or townhome unit is a flat $80.00 permit fee. If a furnace and air conditioner are installed concurrently, the flat fee is $110.00, per the City of Lakewood's published fee schedule.

Plan review for a mechanical / hvac permit in Lakewood typically runs 0–0 business days. This is an estimate, not a published figure — confirm current review times with City of Lakewood — Public Works Department, Permit Counter (Building Division) at 303-987-7500.

You'll need: Mechanical Permit Application (via eTRAKiT). See the required-documents checklist on this page for details on each.

Lakewood requires 2 inspection(s) for a mechanical / hvac permit, in order: Rough-In / Equipment, Final. Schedule each through City of Lakewood — Public Works Department, Permit Counter (Building Division) (303-987-7500).

Apply through City of Lakewood — Public Works Department, Permit Counter (Building Division) at 480 S. Allison Pkwy, Lakewood, CO 80226 (Civic Center North). Phone: 303-987-7500, email: permitcounter@lakewoodco.gov. Office hours: Contact Permit Counter at 303-987-7500; permits are applied for, tracked, and paid online through eTRAKiT (lakw-trk.aspgov.com/eTRAKiT). Official information: https://www.lakewoodco.gov/Local-Government/Departments/Public-Works/Building-and-Construction-Permits.

Lakewood, Colorado has adopted: 2021 International Building Code (IBC) — City of Lakewood adopted edition, with Lakewood amendments in Municipal Code Title 14; 2021 International Residential Code (IRC) — City of Lakewood adopted edition, with Lakewood amendments; 2021 International Plumbing Code (IPC) — City of Lakewood adopted edition; 2021 International Mechanical Code (IMC) — City of Lakewood adopted edition; 2021 International Fuel Gas Code (IFGC) — City of Lakewood adopted edition; 2021 International Energy Conservation Code (IECC) — City of Lakewood adopted edition (satisfies Colorado HB22-1362's 2021 IECC-or-better floor for the 2023-2026 adoption window); 2021 International Existing Building Code (IEBC) — City of Lakewood adopted edition; 2021 International Fire Code (IFC) — City of Lakewood adopted edition (administered with West Metro Fire Protection District); 2021 International Swimming Pool and Spa Code (ISPSC) — City of Lakewood adopted edition; 2021 International Property Maintenance Code (IPMC) — City of Lakewood adopted edition; 2023 National Electrical Code (NEC) — City of Lakewood adopted edition, matching the State of Colorado's adopted electrical code. Local amendments apply — see the Lakewood overview page for the full list.

Sources & verification

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

Fee schedules

Checklists & handouts

Online permit portal

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

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Related guides

Furnace ReplacementCommercial Tenant Improvement

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