Do I need a permit for electrical panel or service upgrade in Centennial?
Yes. In Colorado, electrical panel or service upgrade generally requires a permit, and Centennial is no exception.
Centennial requires an electrical permit to replace or upgrade a service panel, applied for through the Centennial Self-Service (CSS) portal and reviewed under the 2020 NEC the city has adopted. Electrical work must be performed by a contractor licensed through the Colorado State Electrical Board, and Centennial applies an electrical license contemporaneous review at permitting. The utility disconnect and reconnect with Xcel Energy usually must be scheduled separately; if an emergency caused a loss of electric service, call the Building Division at 303-754-3321. Replacing or upgrading an electrical service panel requires a permit and inspection through Colorado's State Electrical Board, and the work must be done by a state-licensed electrician or by the homeowner on the home they occupy. A utility disconnect and reconnect usually must be scheduled with the power company, and grounding, bonding, and AFCI/GFCI requirements must meet the adopted NEC edition.
Documents you may need
- Electrical permit application through the Centennial Self-Service (CSS) portalrequired
- Panel or service rating and equipment details (amperage, location)required
- Load calculation for the service upgradeSometimes required
- Colorado State Electrical Board contractor license verified through Centennial's contemporaneous reviewLikely required
- State electrical permit applicationrequired
- Panel/service rating and equipment details (amperage, location)required
- Load calculation for service upgradesSometimes required
Possible inspections
- Electrical rough or service inspection (coordinate the utility disconnect and reconnect)
- Final electrical inspection
- Electrical service/rough inspection (often coordinated with the utility for a service disconnect)
Frequently asked questions
- Do I need a permit for electrical panel or service upgrade in Centennial?
- Yes. In Colorado, electrical panel or service upgrade generally requires a permit, and Centennial is no exception. Centennial requires an electrical permit to replace or upgrade a service panel, applied for through the Centennial Self-Service (CSS) portal and reviewed under the 2020 NEC the city has adopted. Electrical work must be performed by a contractor licensed through the Colorado State Electrical Board, and Centennial applies an electrical license contemporaneous review at permitting. The utility disconnect and reconnect with Xcel Energy usually must be scheduled separately; if an emergency caused a loss of electric service, call the Building Division at 303-754-3321. Replacing or upgrading an electrical service panel requires a permit and inspection through Colorado's State Electrical Board, and the work must be done by a state-licensed electrician or by the homeowner on the home they occupy. A utility disconnect and reconnect usually must be scheduled with the power company, and grounding, bonding, and AFCI/GFCI requirements must meet the adopted NEC edition.
- 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.