Plumbing Contractor Permit Requirements in Denver, CO
Complete permit and license guide for starting a plumbing contractor in Denver, Denver County, Colorado.
Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .
Denver / Denver County Requirements
2 requirementsCity and County of Denver — Plumbing Contractor License
Denver requires a separate city-issued Plumbing Contractor License from Denver Community Planning and Development (CPD). A Denver-licensed Master Plumber must be listed as the qualifier. The contractor license is separate from the individual master plumber license and must be renewed annually. Apply via the Denver eLicense portal.
Denver Sales Tax License
Plumbing contractors selling materials as part of their work must obtain a Denver Sales Tax License from Denver Treasury. Required for businesses collecting Denver's 4.81% sales tax.
Colorado State Requirements
3 requirementsColorado Master Plumber License
Colorado requires a Master Plumber License issued by the Colorado Examining Board of Plumbers for anyone performing plumbing work. To qualify a plumbing contracting business, the responsible individual must hold a Colorado Master Plumber License. Applicants need 4 years of experience (2 as journeyman) and must pass a state exam.
Colorado Plumbing Contractor Bond
Plumbing contractors in Colorado are generally required to carry a surety bond and liability insurance. Denver specifically requires proof of $1,000,000 general liability insurance.
Colorado Business Entity Registration (if applicable)
LLCs and corporations must register with the Colorado Secretary of State.
Federal Requirements
1 requirementEIN (Employer Identification Number)
Required if you have employees or operate as an LLC/corporation. Free from the IRS.
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