How to Check a Contractor's License in Colorado

Colorado is one of the states that does not require a statewide general contractor license. There is no single state agency where you can look up a general contractor and confirm they're authorized to build your deck, renovate your kitchen, or frame your new home. That makes verifying a contractor in Colorado more complicated than in states like California or Virginia, but it does not mean there are no rules.

Certain specialty trades — electrical and plumbing — are licensed at the state level through the Department of Regulatory Agencies (DORA). And many cities and counties across Colorado require their own local contractor licenses. This guide walks you through how to check what you can at the state level, where to look at the local level, and what else to verify when there is no state license to fall back on.

Does Colorado require a contractor license?

Colorado does not issue a statewide general contractor license. Electricians and plumbers must be licensed through the state's Department of Regulatory Agencies (DORA), but general contractors, roofers, and most other trades are regulated only at the local level. Many cities — including Denver, Colorado Springs, and Boulder — have their own licensing programs.

Colorado's approach to contractor licensing is decentralized. Unlike states that issue a single statewide general contractor license, Colorado leaves most licensing decisions to local jurisdictions. Here is how it breaks down:

• No statewide general contractor license— There is no state-level license for general contractors, roofers, HVAC contractors, or most other construction trades. The state does not maintain a registry of general contractors, and there is no state exam or bonding requirement for general construction work.
• Electricians are licensed through DORA— The Division of Professions and Occupations under DORA issues licenses for master electricians, journeyman electricians, and residential wiremen. This is the one electrical licensing authority for the entire state.
• Plumbers are licensed through DORA— DORA also licenses master plumbers, journeyman plumbers, and residential plumbers at the state level. Plumbing is one of the few trades with consistent state oversight in Colorado.
• Local jurisdictions fill the gap— Many cities and counties require contractors to hold a local license before performing work within their boundaries. Denver, Colorado Springs, Boulder, Fort Collins, Larimer County, and many others have their own licensing programs with their own requirements.

This means your verification approach depends entirely on the type of work being done and where the project is located. For an electrician, you check DORA. For a general contractor in Denver, you check with the City and County of Denver. For a general contractor in an unincorporated area with no local licensing, you rely on other verification methods.

How do I look up an electrician or plumber's license in Colorado?

Use DORA's free online license lookup at apps2.colorado.gov/dora/licensing/lookup. Search by the contractor's name and select the license type (Master Electrician, Journeyman Electrician, Master Plumber, etc.). Confirm the status shows "Active" and the expiration date has not passed. You can also call DORA at (303) 894-7855 to verify by phone.

If you're hiring an electrician or plumber in Colorado, start with the DORA license lookup tool. Navigate to apps2.colorado.gov/dora/licensing/lookup. This is the official state portal for verifying professional licenses issued by the Division of Professions and Occupations.

To search, enter the contractor's first and last name and select the appropriate license type from the dropdown menu. For electricians, look for options like "Master Electrician," "Journeyman Electrician," or "Residential Wireman." For plumbers, look for "Master Plumber," "Journeyman Plumber," or "Residential Plumber." Click search to pull up the results.

When you find a result, pay attention to these fields:

• License status— You want to see "Active." Anything else — expired, inactive, revoked, suspended — means the person is not currently authorized to perform that trade.
• License type— Confirm it matches the work being performed. A journeyman electrician can perform electrical work under a master electrician's supervision, but they cannot pull permits or run a job independently in most jurisdictions.
• Expiration date— Make sure the license has not lapsed. An expired license is the same as no license from a legal standpoint.
• Disciplinary actions— DORA tracks complaints and disciplinary history. If there are any flags or notes on the record, dig deeper before hiring.

If you cannot find someone by name, try variations of their name or ask the contractor directly for their license number. You can also contact DORA at (303) 894-7855 to verify a license over the phone.

Where do I check a general contractor's license in Colorado?

For general contractors in Colorado, check with the building department of the city or county where the work will occur — there is no statewide database. Denver uses its Community Planning and Development portal, Colorado Springs uses the Pikes Peak Regional Building Department, and Boulder has its own city building division. Call your local building department if you're unsure which system applies.

Since Colorado does not have a statewide general contractor license, many cities and counties have stepped in with their own requirements. If your project involves general construction, roofing, concrete, or other trades not covered by DORA, you need to check with the local jurisdiction where the work is happening.

Here are some of the major jurisdictions with their own contractor licensing programs:

• Denver— The City and County of Denver requires contractor licensing through its Community Planning and Development division. Denver uses a class system: Class A for commercial construction (seven years of experience required), Class C for residential construction (two years of experience), and 45 Class D specialty certificates for specific trades like drywall, concrete, and masonry. You can search for licensed contractors through Denver's contractor licensing page.
• Colorado Springs— The Pikes Peak Regional Building Department manages licensing for contractors in Colorado Springs and surrounding municipalities. They offer licensing for building, mechanical, and fire contractors. Applicants need to pass an ICC exam and pay fees ranging from $75 to $200. Colorado Springs also has specialty licenses for single trades and nonstructural remodeling work.
• Boulder— Boulder requires contractor registration for anyone performing work within city limits. You can verify a contractor's registration through the city's building division.
• Fort Collins and Larimer County— Larimer County has its own contractor licensing program that covers Fort Collins and other areas within the county. They require licensing for building contractors and various specialty trades.

If you are unsure whether your area requires a local contractor license, call your city or county building department. They can tell you what licenses are needed for your specific project and how to verify them.

What should I verify if there is no license to check?

When no state or local license applies, verify insurance (general liability and workers' comp), check business registration with the Colorado Secretary of State, confirm building permits will be pulled, and call at least three references. According to the FTC, home improvement fraud costs consumers over $3 billion annually — independent verification is your main protection when licensing doesn't exist.

For general contractors and trades not licensed through DORA, and in areas without local licensing requirements, you lose the easy shortcut of a state database lookup. But that does not mean you should skip verification entirely. Here is what to check instead:

• Insurance— Ask for a certificate of general liability insurance and verify it directly with the insurance company. Do not just accept a printed certificate — policies can lapse between the time a certificate is printed and the time work begins. A contractor without liability insurance leaves you exposed if something goes wrong on your property.
• Workers' compensation— Colorado requires workers' comp for all employers with one or more employees. If your contractor has a crew and no workers' comp coverage, you could be liable for injuries that happen on your job site. Ask for proof and verify it.
• Business registration— Check the Colorado Secretary of State's business entity search to confirm the contractor is registered as a legal business in the state. This does not prove competence, but it does confirm the business exists and is in good standing.
• References and past work— Without a license as a baseline filter, references become more important. Ask for three to five recent references on projects similar to yours, and actually call them. Ask about quality, timeline, communication, and whether the final price matched the estimate.
• Permits— Even without a state license, most construction work in Colorado requires building permits from the local jurisdiction. A legitimate contractor will pull permits as a standard part of the job. If a contractor suggests skipping permits, that is a major red flag.
• BBB and complaint history — Check the Better Business Bureau for complaints. You can also search for any civil suits or liens against the contractor through county court records. These searches take time but can reveal patterns that reviews on Yelp or Google might miss.

What mistakes do Colorado homeowners make when hiring a contractor?

The most common mistake is assuming Colorado's lack of a statewide license means no rules apply. Many homeowners skip the local jurisdiction check entirely, fail to verify electrical and plumbing subcontractor licenses through DORA, and accept an insurance certificate without confirming it is still active. Skipping these steps is where most problems begin.

The lack of a statewide general contractor license creates some specific pitfalls that homeowners in Colorado should watch for:

• Assuming no license means no rules— Just because the state does not license general contractors does not mean your city or county doesn't. Many homeowners skip the local check entirely and miss a requirement that exists right in their own jurisdiction.
• Not verifying trade licenses— Electricians and plumbers must be licensed through DORA regardless of where in Colorado they work. If a general contractor is subcontracting electrical or plumbing work, each subcontractor should hold the appropriate state license. Ask for their license numbers and verify them.
• Skipping insurance verification— In states with robust licensing, insurance is often required as part of the license. In Colorado, there is no such automatic safeguard for general contractors. You need to verify insurance separately and treat it as non-negotiable.
• Relying only on online reviews— Reviews are useful but they are not a substitute for verifying credentials. A contractor can have a perfect five-star rating and still lack insurance, skip permits, or use unlicensed subcontractors for specialty work.

What can I do if a licensed Colorado contractor does bad work?

For licensed electricians and plumbers, file a complaint with DORA — the agency can investigate, impose fines, and revoke licenses. For unlicensed general contractors, your options are civil court, the contractor's bond or insurance (if they carry it), or the Colorado Attorney General's consumer protection division. This is why verifying insurance before work begins matters so much.

If you have a problem with a licensed electrician or plumber, you can file a complaint with DORA through their complaint filing page. DORA has the authority to investigate, impose fines, and revoke or suspend licenses.

For general contractors or other unlicensed trades, your options depend on the local jurisdiction. If the contractor is locally licensed, file a complaint with the city or county licensing authority. If there is no licensing body involved, your recourse is through civil court, your contractor's bond or insurance (if they have it), or the Colorado Attorney General's consumer protection division.

This is precisely why verifying insurance and bonding up front matters so much in Colorado. Without a state license to revoke, the main leverage you have is financial — and that leverage only exists if the contractor carries proper coverage.

The bottom line

Checking a contractor's credentials in Colorado takes more effort than in states with a single statewide licensing system. For electricians and plumbers, use DORA's license lookup tool to confirm the license is active and in good standing. For general contractors and other trades, check with your local city or county building department to find out what licenses are required in your area.

When no license applies, do the work that licensing would otherwise do for you: verify insurance, confirm workers' comp coverage, check business registration, call references, and make sure permits are being pulled. Colorado's decentralized system puts more of the verification burden on you as the homeowner, but the information is there if you know where to look.