Contractor Licensing

All general, roofing and mechanical contractors applying for permits in Unincorporated Jefferson County are required to obtain a Jefferson County Contractors License.

Contractor Definition

A contractor is anyone who engages in any type of work for compensation for which a building or mechanical permit is required. People who are not considered to be contractors are the property owner, a laborer working under the supervision of a contractor, a person who is performing labor or repair work on their own property, an employee of the property owner who performs full-time maintenance or repair work on the owner’s property, and state-licensed plumbers or electricians.

“A homeowner/builder that may be exempted from this policy is a property owner who elects to act as the contractor of a residential dwelling or accessory buildings intended for the homeowner's own personal use and occupancy. Such a person may secure a building permit on only one residential dwelling in any twenty-four (24) month period. Any person who obtains a building permit for two or more residences in unincorporated Jefferson County in any twenty-four-month period shall be deemed to be a contractor, who must then comply with Building Contractor license requirements.”

Note: Unincorporated Jefferson County does not license State-Licensed Plumbers or Electricians.  

Requirements for New Licenses & Renewals

The requirements and conditions for issuance of a Jefferson County Contractors License include:

  1. The submission of a Contractor License application.
  2. Proof that you have passed an appropriate ICC exam within the last 3 years or provide a copy of a valid license issued from an ICC participating jurisdiction.
  3. Provide proof of lawful presence for the company applying (photo ID/Drivers License).
  4. Payment of the $50 licensing fee.

Licenses are good for one year and must be renewed annually. Contractors holding valid licenses who apply for renewal cannot have any unresolved building code issues (expired permit, expired temporary certificate of occupancy, illegal occupancy, etc.) connected with building permits issued to or on behalf of the contractor licensee at time of renewal.

Note: You must have all required documents at time of application in order to apply for your license.  

Submitting Documents

Documents may be submitted in one of four ways:

  1. Online for registered users 
  2. In person at 100 Jefferson County Parkway, Golden CO
  3. Email: [email protected]
  4. Mail to:
    100 Jefferson County Parkway
    Golden, CO 80419-3540

ICC Exam Scheduling

If you have not taken the applicable ICC exam within the past 3 years or do not have a valid license with one of the participating ICC jurisdictions, you will need to schedule an exam. To schedule an ICC exam please contact Pearson Vue at 1-877-234-6082 or on the Pearson Vue website.

You will be asked to provide the exam ID and jurisdiction, please reference the exam ID listing in the License Categories above and the jurisdiction as Colorado.