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Certificate Renewals

All certificate types must be renewed every three years. Expiration dates appear on each certificate.

Documents needed: Please upload/submit a current form of identification (state or military photo ID, passport, temporary/permanent resident card, employment authorization card with photo, etc.) with your renewal application.

For 30 days before your certificate expires, you can renew online.

  1. Register for a free, online account.
  2. If this is your first time renewing online, email the following information to
    • Name and email address associated with your online account
    • Certificate number
  3. Contractor Licensing will link your certificate to your online account within 24 hours.
  4. After 24 hours, return to your account and use the "Contractor Licensing" functions to renew your certificate. 

Need help? Download a tutorial.

Please note: A license or certificate that has passed the expiration date must be submitted in person or by mail.

Renew in person or by mail

Certificate Fees

  • Supervisor - $60
  • Journeyman - $40
  • Operator and Engineer - $40

Accepted methods of payment: Cash, checks made payable to "Manager of Finance," Visa, MasterCard, and Discover

Mail or bring the completed form, supporting documentation, and payment to:

Community Planning and Development
Contractor Licensing
201 W. Colfax Ave., Dept. 205
Denver, CO 80202