Plumbing Contractors in Denver, Colorado
Licensed Establishments
2,528
U.S. Census Bureau
Peak Season
October through March (frozen pipe season and holiday home repairs)
Estimate
Avg. Response Time
24-48 hours for quotes, same day for emergency calls
Estimate
Common Job Costs
| Service | Cost Range |
|---|---|
| Basic drain cleaning | $125 – $275 |
| Water heater installation | $1,200 – $3,500 |
| Toilet replacement | $300 – $800 |
| Kitchen faucet installation | $200 – $450 |
| Sewer line repair | $2,500 – $8,000 |
| Emergency service call | $150 – $400 |
Licensing Requirements
Licensing Requirements
Colorado requires Master Plumber license through Department of Regulatory Agencies. Must pass state exam, have 4 years experience or complete approved apprenticeship. Journeyman license available with 2 years experience. Renewal every 3 years with continuing education requirements.
Permit Requirements
City of Denver requires permits for water heater replacement, new plumbing installations, sewer line work, and gas line connections. Permits range from $35-200 depending on scope.
Inspection Schedule
Rough-in inspection before concealment, final inspection before occupancy. Emergency repairs under $500 typically exempt from permits.
Insurance Minimums
General liability minimum $300,000, workers compensation required for employees. Many clients require $1M+ coverage.
How to Get Licensed
- 1
Meet experience requirements
Complete 4 years plumbing experience or finish state-approved apprenticeship program. Document all work experience with employment verification.
- 2
Submit application
File Master Plumber application with Colorado Department of Regulatory Agencies including experience documentation, background check, and application fee.
- 3
Pass state examination
Schedule and pass the Colorado Master Plumber examination covering codes, regulations, and technical knowledge. Exam fee required.
- 4
Obtain insurance and bonding
Secure required general liability insurance and any bonding requirements before license issuance.
- 5
Receive license and maintain
License issued upon approval. Renew every 3 years with continuing education requirements and renewal fees.
About This Market
Denver's plumber market is solid with steady demand driven by aging infrastructure, new construction, and altitude-related pipe stress from freeze-thaw cycles. Competition is moderate with approximately 2,528 licensed establishments statewide, but emergency work and specialty jobs like sewer line replacement command premium rates. Winter freeze damage creates predictable revenue spikes, while new construction keeps summer busy.
To work this market, you need a Colorado Master Plumber license - no shortcuts. Denver's permit process is straightforward but required for most jobs over basic repairs. Know your frost line depths and high-altitude plumbing codes. Build relationships with property managers and home warranty companies for steady work. Stock freeze repair supplies October through March, and charge appropriately for emergency calls - customers pay for availability.
Data Sources:
Frequently Asked Questions
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