Do I need a permit for hvac replacement or installation in Centennial?
Yes. In Colorado, hvac replacement or installation generally requires a permit, and Centennial is no exception.
Centennial requires a mechanical permit to change out a furnace, air conditioner, or forced-air system, even for a like-for-like swap, applied for through the Centennial Self-Service (CSS) portal. If an equipment failure caused a loss of heat, the Building Division asks that you call 303-754-3321 to report the emergency before or during the work. Mechanical work is reviewed under the 2021 I-Codes with Centennial amendments, so gas connections and combustion air are checked at inspection. Most Colorado jurisdictions require a mechanical permit to change out a furnace, air conditioner, or heat pump, even for a like-for-like swap; the exact permit type and inspections depend on the locally adopted code. Gas piping and electrical connections for the equipment fall under Colorado's state Plumbing and Electrical Boards and may require their own state permits in addition to the local mechanical permit.
Documents you may need
- Mechanical permit application through the Centennial Self-Service (CSS) portalrequired
- Equipment specifications (type, capacity, location) for the furnace, air conditioner, or heat pumprequired
- Licensed City of Centennial mechanical contractor on the permitLikely required
- Mechanical permit applicationrequired
- Equipment specifications (capacity, efficiency, location)required
- Load calculation or energy compliance where requiredSometimes required
Possible inspections
- Mechanical rough or field inspection
- Final mechanical inspection
- Mechanical rough-in inspection when ductwork, gas, or electrical connections change
Frequently asked questions
- Do I need a permit for hvac replacement or installation in Centennial?
- Yes. In Colorado, hvac replacement or installation generally requires a permit, and Centennial is no exception. Centennial requires a mechanical permit to change out a furnace, air conditioner, or forced-air system, even for a like-for-like swap, applied for through the Centennial Self-Service (CSS) portal. If an equipment failure caused a loss of heat, the Building Division asks that you call 303-754-3321 to report the emergency before or during the work. Mechanical work is reviewed under the 2021 I-Codes with Centennial amendments, so gas connections and combustion air are checked at inspection. Most Colorado jurisdictions require a mechanical permit to change out a furnace, air conditioner, or heat pump, even for a like-for-like swap; the exact permit type and inspections depend on the locally adopted code. Gas piping and electrical connections for the equipment fall under Colorado's state Plumbing and Electrical Boards and may require their own state permits in addition to the local mechanical permit.
- Who issues the permit in Centennial?
- The local building department for Centennial handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.