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
- Work governed by the 2021 IMC (mechanical) and 2021 IFGC (fuel gas piping) as adopted by the City of Lakewood
Required documents
- Req
Mechanical Permit Application (via eTRAKiT)
Apply online; select Permit Type 'Mechanical' or the relevant 'Residential System Replacements' subtype
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Furnace Replacement (flat fee — single-family, duplex, or townhome) | $80.00 | City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table |
| Air Conditioner Replacement (flat fee — single-family, duplex, or townhome) | $80.00 | City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table |
| Furnace and Air Conditioner Installed Concurrently (flat fee) | $110.00 | City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table |
| Evaporative Cooler Replacement (flat fee — single-family, duplex, or townhome) | $80.00 | City of Lakewood Building Permit & Inspection Fee Schedule, Flat Fee Permits table |
| Other Mechanical Permit Fee (non-flat-fee commercial/complex scopes) | Valuation-based per the standard Building Permit Fee table when not covered by a Flat Fee Permit line item | 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 |
Review timeline
~0–0 business days
Typical estimate — confirm current times with the Lakewood building department
Inspection process
- 1
Rough-In / Equipment
Equipment installation and ductwork before walls closed
- 2
Final
Equipment operational, combustion air and venting verified
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.
Frequently asked questions
- How much does a furnace replacement permit cost in Lakewood?
- 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.
Sources & verification
Verified against official sources. Last reviewed 2026-06-30.
- City of Lakewood — Public Works Department, Permit Counter (Building Division) — official building department
- City of Lakewood Building Permit & Inspection Fee Schedule (effective Jan 1, 2021, current published version) — Flat Fee Permits table
- City of Lakewood eTRAKiT Permit Types info sheet (rev. 2022-01-06) — Residential System Replacements section
- City of Lakewood Codes and Loads handout — 2021 IMC/IFGC adoption
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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