At a glance
The fastest way to orient yourself in Colorado is to understand that the state regulates only two trades directly, plus highway prequalification. General contracting is a local matter.| Signal | Value |
|---|---|
| General contractor license | No statewide license — regulated by cities and counties |
| Electrical work | State-level licensing required |
| Plumbing work | State-level licensing required |
| Highway prequalification tier 1 | Up to $3,000,000 — compiled financial statement |
| Highway prequalification tier 2 | $3,000,000 to $5,000,000 — reviewed financial statement |
| Highway prequalification tier 3 | $5,000,000 and over — audited financial statement |
| Reciprocity model | Journeyman electrical only — 14 states |
Frequently asked questions
Pick the tab that matches your situation. Each FAQ gives a direct answer and points you to the full detail below.- Contractors
- Regulators
Does Colorado have a statewide general contractor license?
Does Colorado have a statewide general contractor license?
No. Colorado does not have a statewide general contractor license. General contractors are regulated by local cities and counties. Check with the jurisdiction where the project is located for local licensing, permitting, and bonding requirements. See Construction work regulated.
How do I get an electrical contractor license in Colorado?
How do I get an electrical contractor license in Colorado?
Electrical contractors must employ a full-time master electrician registered with the State Electrical Board. Master electricians need 5 years of experience (4 years electrical construction wiring with minimum 2 years commercial/industrial, plus 1 year planning and supervising) and must pass the master electrician exam. Workers’ compensation and unemployment compensation compliance are required. See Requirements.
What are the requirements for plumbing contractor licensing?
What are the requirements for plumbing contractor licensing?
Plumbing requires a state license from the Examining Board of Plumbers. Master plumbers need 5 years or 8,500 hours of experience. Journeyman plumbers need 4 years or 6,800 hours. Residential plumbers need 2 years or 3,400 hours. An exam is required for all levels. See Requirements.
Where do I go to get licensed for electrical or plumbing work?
Where do I go to get licensed for electrical or plumbing work?
Both the State Electrical Board and the Examining Board of Plumbers are located at 1560 Broadway, Suite 1350, Denver, CO 80202. Phone: (303) 894-7800. They share an address but are distinct regulatory entities. See Who regulates construction.
What are the CDOT highway prequalification tiers?
What are the CDOT highway prequalification tiers?
CDOT uses three tiers based on financial documentation: compiled financial statements allow up to $3,000,000, reviewed statements allow $3,000,000 to $5,000,000, and audited statements allow $5,000,000 and above. Performance and payment bonds are required on all CDOT contracts. Processing takes approximately 15 days. See Requirements.
Can I use my out-of-state license in Colorado?
Can I use my out-of-state license in Colorado?
Reciprocity exists only for journeyman electricians from 14 specific states: Alaska, Arkansas, Idaho, Iowa, Minnesota, Montana, Nebraska, New Hampshire, New Mexico, North Dakota, Oklahoma, South Dakota, Utah, and Wyoming. Plumbing licenses may be obtainable by endorsement — contact the Board directly. There is no reciprocity for general contractors. See Reciprocal agreements.
What experience is needed for a journeyman electrician license?
What experience is needed for a journeyman electrician license?
Journeyman electricians need 4 years of experience. Residential wiremen need 2 years of residential experience. These are separate from the master electrician’s 5-year requirement. See Requirements.
Does Colorado require a license for HVAC work?
Does Colorado require a license for HVAC work?
Colorado does not license HVAC work at the state level. HVAC contractor licensing is handled locally by cities and counties, similar to general contracting. Only electrical and plumbing trades are state-regulated.
Does Colorado require a license for residential construction?
Does Colorado require a license for residential construction?
There is no statewide license for residential construction. Local jurisdictions set their own requirements. If the project involves electrical or plumbing work, those trades require state-level licenses regardless of the project type. See Construction work regulated.
What are the bonding requirements for highway work?
What are the bonding requirements for highway work?
Performance and payment bonds are required on all CDOT-awarded contracts. The prequalification tier determines the maximum project size you can bid on. Prequalification renews annually. See Requirements.
Start with your goal
Pick the card that matches what you need right now. Each one links to the relevant section on this page.Is licensure triggered?
Start with the type of work to determine whether Colorado regulates it at the state level.
Find the right regulator
Use the regulator directory to route your question to the correct Colorado board or agency.
Application and renewal details
Exams, experience, bonds, and prequalification tiers for each regulated trade.
Reciprocity direction
Find out which states have journeyman electrical reciprocity and plumbing endorsement options.
Special considerations
Different roles need different things from a Colorado page. Use the tab that matches your situation to see what matters most before you read the full detail below.- Contractors
- Regulators
- There is no statewide general contractor license. General contractors are regulated by local jurisdictions (cities and counties).
- Electrical and plumbing work require state-level licenses from their respective boards.
- Highway, bridge, and road projects require CDOT prequalification, tiered by project value at $3,000,000 and $5,000,000.
- Electrical contractors must employ a full-time master electrician registered with the State Board.
- Workers’ compensation and unemployment compensation compliance are required for electrical contractor applications.
- Plumbing licenses may be obtainable by endorsement in some cases — contact the Board directly.
Readiness checklist
Four things you need to confirm before you can treat Colorado as “ready” for a bid or an application. If any of these are unclear, you are not ready yet.Determine state vs. local jurisdiction
Identify whether your work is electrical, plumbing, or highway (state-regulated) or general construction (locally regulated).
Apply the right threshold or tier
For highway work, determine your prequalification tier: compiled up to
$3,000,000, reviewed up to $5,000,000, audited above $5,000,000. For electrical and plumbing, confirm experience requirements.Route to the correct regulator
Use the regulator directory below. Do not assume Colorado has a statewide general contractor board — it does not.
If you can determine jurisdiction level, applicable tier or experience requirement, correct regulator, and full requirement set, you have the minimum package needed for a Colorado readiness check.
Navigation
Use these links to jump to related cross-state comparisons and workflows.- New state evaluation if you are screening Colorado for the first time.
- Multi-state bid readiness if you need to compare Colorado with nearby jurisdictions.
- Licensing thresholds or prequalification patterns for cross-state context.
Construction work regulated
Colorado does not have a statewide general contractor license. State-level regulation applies only to electrical work, plumbing work, and highway prequalification. General construction licensing varies by city and county.| Work lane | What triggers regulation |
|---|---|
| Electrical work | State license required (State Electrical Board) |
| Plumbing work | State license required (Examining Board of Plumbers) |
| Highway, bridge, or road construction | CDOT prequalification required |
| General construction | Regulated by local cities and counties — no state license |
Some cities and counties impose their own licensing requirements for general contractors. Check with the local jurisdiction where the project is located.
Common determination scenarios
If you are trying to figure out where to start, expand the scenario that is closest to your situation.Electrical installation or wiring project
Electrical installation or wiring project
All electrical work requires a state license. Master electricians need 5 years of experience (including 2 years commercial/industrial); journeymen need 4 years; residential wiremen need 2 years. Electrical contractors must employ a full-time state-registered master electrician.
Plumbing project
Plumbing project
All plumbing work requires a state license. Experience requirements are 8,500 hours for master, 6,800 hours for journeyman, and 3,400 hours for residential. Endorsement may be available for out-of-state plumbers — contact the Board.
Highway or bridge construction
Highway or bridge construction
State highway and bridge projects require CDOT prequalification. Financial documentation requirements increase with project value. Performance and payment bonds are required on all CDOT-awarded contracts. Prequalification renews annually with approximately 15-day processing time.
General building construction
General building construction
Colorado has no statewide general contractor license. Check the city or county where the project is located for local licensing, permitting, and bonding requirements.
Reciprocity request
Reciprocity request
Reciprocity applies only to journeyman electricians from 14 specific states. Plumbing licenses may be obtainable by endorsement — contact the Examining Board of Plumbers for details. There is no reciprocity for general contractors.
Who regulates construction
Colorado splits state-level construction regulation across 3 entities. General contractor licensing is handled locally. Use this directory to find the right contact for your situation.Highway prequalification — Colorado Department of Transportation (CDOT)
Highway prequalification — Colorado Department of Transportation (CDOT)
2829 West Howard Place, Suite 300, Denver, CO 80204Phone: (303) 757-9418Email: danielle.mire@state.co.usWebsite: codot.govBidding portal: codot.gov/business/biddingPrequalification portal: cdot.dbesystem.com
Electrical licensing — Colorado State Electrical Board
Electrical licensing — Colorado State Electrical Board
1560 Broadway, Suite 1350, Denver, CO 80202Phone: (303) 894-7800 | Fax: (303) 894-2310Website: dpo.colorado.gov/Electrical
Plumbing licensing — Colorado Examining Board of Plumbers
Plumbing licensing — Colorado Examining Board of Plumbers
1560 Broadway, Suite 1350, Denver, CO 80202Phone: (303) 894-7800 | Fax: (303) 894-2310Website: dpo.colorado.gov/Plumbing
Requirements
Each Colorado board has its own experience, exam, and compliance requirements. CDOT prequalification operates on a separate tiered system based on project value. Expand the section that applies to your situation.Highway Prequalification (CDOT)
Highway Prequalification (CDOT)
| Requirement | Detail |
|---|---|
| Basis | Financial limits set from financial statements and bonding capacity letters |
| Renewal | Annual; average processing time approximately 15 days |
| Bonds | Performance and payment bonds required on all CDOT-awarded contracts |
| Bidding | Bids solicited electronically via Bid Express; design-build, CM-GC, and best-value projects exempt from electronic bidding requirement |
| Prequalification tier | Required documentation |
|---|---|
| Up to $3,000,000 | Compiled financial statement plus bonding capacity documentation |
| $3,000,000 to $5,000,000 | Reviewed financial statement plus bonding capacity documentation |
| $5,000,000 and over | Audited financial statement plus bonding capacity documentation |
Electricians
Electricians
| Requirement | Detail |
|---|---|
| Master electrician experience | 5 years total: 4 years electrical construction wiring (minimum 2 years commercial/industrial), plus 1 year planning, layout, supervising, and installing |
| Master electrician exam | Must pass master electrician examination |
| Journeyman electrician experience | 4 years of experience |
| Residential wireman experience | 2 years of residential experience |
| Contractor requirement | Must employ a full-time master electrician registered with the State Board |
| Compliance | Workers’ compensation and unemployment compensation required for contractor applications |
Plumbers
Plumbers
| Requirement | Detail |
|---|---|
| Master plumber experience | 5 years or 8,500 hours |
| Journeyman plumber experience | 4 years or 6,800 hours |
| Residential plumber experience | 2 years or 3,400 hours |
| Exam | Examination required for master, journeyman, and residential applicants |
Reciprocal agreements
Colorado maintains reciprocity for journeyman electricians only. Plumbing licenses may be available by endorsement in some cases. There is no reciprocity for general contractors (which are not state-licensed).Reciprocity in Colorado is narrow: journeyman electrical only. For plumbing endorsement, contact the Examining Board of Plumbers directly.
| Board | Reciprocal states | Coverage |
|---|---|---|
| State Electrical Board (journeyman only) | Alaska, Arkansas, Idaho, Iowa, Minnesota, Montana, Nebraska, New Hampshire, New Mexico, North Dakota, Oklahoma, South Dakota, Utah, Wyoming | 14 states |
| Examining Board of Plumbers | Endorsement possible in some cases — contact board | Limited |
Types of licenses
Colorado issues licenses and registrations for two trades at the state level. Use this section to confirm the exact credential name for an application or comparison.Electrical
Electrical
Licenses:
- Master Electrician
- Journeyman Electrician
- Residential Wireman
- Apprentice Registration
- Electrical Contractor Registration
Plumbing
Plumbing
Licenses:
- Master Plumber
- Journeyman Plumber
- Residential Plumber
- Apprentice Registration
- Plumber Contractor Registration
See also
West region guide
Browse all West jurisdictions for comparison.
Contractors guide
Cross-state guidance for contractors evaluating new jurisdictions.
Regulators guide
Cross-state guidance for comparing regulatory models and agency structures.
Wyoming
Journeyman electrical reciprocity with Colorado.
Utah
Journeyman electrical reciprocity with Colorado.
New Mexico
Journeyman electrical reciprocity with Colorado.