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How do you check a contractor license in Colorado?

In Colorado, the Attorney General's office points you to your city or county for a general contractor's license, and says electrical and plumbing licenses are regulated by the state and searchable with the Department of Regulatory Agencies. Denver, for example, issues its own contractor licenses.

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.
Source: City and County of Denver, contractor licensing page, read 22 October 2026.

The license lookup is yours to run on the state's site.

InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.

By InstaBids editorial team with AI research agents. Sources last read: 22 October 2026

InstaBids assistantAI · builds your written scope with you

What home job do you need done in Colorado? Describe it once to start your written scope.

Start from a common job
You choose who gets your number
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  1. Describe it onceBy chat, or through your own AI assistant, and add photos.
  2. Post it and send itContractors bid in writing on that scope.
  3. Compare line by lineEvery quote is written against the same scope.
  4. You chooseContact details stay hidden until you pick and they confirm.
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  • MCP connector URLhttps://instabids.ai/api/agent/mcp
  • Agent API (OpenAPI)https://instabids.ai/openapi.json
  • Start-request linkhttps://instabids.ai/intake?from=licence-colorado&utm_campaign=licence&page_type=licence&job=home+job&place=colorado&utm_source=us&utm_medium=page
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Key facts

Who licenses general contractors in Colorado?

Your city or county, according to the Colorado Attorney General's contractor fraud page, read 22 October 2026.

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

Denver is one city that runs its own program. The City and County of Denver's contractor licensing page says: "Community Planning and Development issues contractor licenses and certificates to individuals and companies who perform various types of construction and trade work in Denver."

Source: City and County of Denver, contractor licensing page, read 22 October 2026.

The same page adds: "Denver does not accept or reciprocate contractor licenses and/or certificates from other counties or states."

Source: City and County of Denver, contractor licensing page, read 22 October 2026.

For a job outside Denver, ask the building department of the city or county where the house is what it requires.

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

How do you look up a Colorado electrician or plumber?

Through the state Department of Regulatory Agencies. The Attorney General's page says: "Licenses to perform electrical or plumbing work are regulated by the state and you can search for them with the Department of Regulatory Agencies".

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

The Division of Professions and Occupations' electrical homepage on dpo.colorado.gov links a search labelled "Lookup a License/ Licensee".

Source: Colorado Division of Professions and Occupations, electrical homepage, read 22 October 2026.

The division's plumbing homepage carries the same search link. The division's FAQ says: "You may search for a particular licensee within our database".

Source: Colorado Division of Professions and Occupations, plumbing homepage, read 22 October 2026.
Source: Colorado Division of Professions and Occupations, professional and consumer FAQ, read 22 October 2026.

For discipline, the FAQ says: "You can access any public disciplinary action document through our Online Services."

Source: Colorado Division of Professions and Occupations, professional and consumer FAQ, read 22 October 2026.

Who pulls the permit for electrical or plumbing work in Colorado?

The division's electrical and plumbing permits page has a notice for homeowners. It says: "If you are a homeowner hiring an Electrical Contractor or Plumbing Contractor, you contractor is responsible for obtaining the required permit(s)."

Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

The same notice says: "Be aware that it is a violation of state law for an individual (other than the homeowner) that is not a registered Electrical or Plumbing Contractor to install an electrical or plumbing project on your property."

Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

Some cities and counties run their own inspections. The permits page says: "The State does not inspect in local jurisdictions having its own Electrical Inspection Program."

Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

For plumbing it says: "The State does not inspect in local jurisdictions having its own Plumbing Inspection Program."

Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

It also says: "You are responsible for determining the correct inspection authority."

Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

In Denver, the city's licensing page adds for owners who do the work: "Some work requires a homeowner exam before you can obtain a permit."

Source: City and County of Denver, contractor licensing page, read 22 October 2026.

Where do you take a complaint about a Colorado contractor?

For an electrician or plumber, the division's FAQ says: "If you are a consumer and you feel that a professional has violated the law or any Board/Program regulations, you may file a complaint against the licensee or individual with the appropriate Board or Program."

Source: Colorado Division of Professions and Occupations, professional and consumer FAQ, read 22 October 2026.

The FAQ also says: "Complaints filed against licensed professionals or entities are confidential."

Source: Colorado Division of Professions and Occupations, professional and consumer FAQ, read 22 October 2026.

On money disputes, it says: "Boards and Programs cannot resolve billing or insurance issues."

Source: Colorado Division of Professions and Occupations, professional and consumer FAQ, read 22 October 2026.

The Attorney General's contractor fraud page gives a first step: "If you believe a contractor is defrauding you, attempt to work things out with the contractor first and document these attempts."

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

What should you ask a Colorado contractor before you search?

Ask what kind of work the job needs, then use the office that covers that work, as an optional public-record step. These are practical suggestions, not agency rules.

  1. For general building or remodeling work, ask the contractor which city or county license they hold for the job's address, and ask that city or county's building department about it.

    Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

  2. In Denver, remember the city's page says it does not accept licenses or certificates from other counties or states.

    Source: City and County of Denver, contractor licensing page, read 22 October 2026.

  3. For electrical or plumbing work, ask for the name on the state license, then use the "Lookup a License/ Licensee" search linked from the division's electrical homepage and note the date you searched.

    Source: Colorado Division of Professions and Occupations, electrical homepage, read 22 October 2026.

  4. Ask who will pull the permit, and find out whether the city or county or the state inspects at your address.

    Source: Colorado Division of Professions and Occupations, electrical and plumbing permits page, read 22 October 2026.

  5. Read the contract before you sign. The Attorney General's page says: "Importantly, always read any contracts thoroughly before signing anything."

    Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

Among the warning signs that page lists from a Federal Trade Commission list is this one: "Refusing to pull required local permits."

Source: Colorado Attorney General, Stop Fraud Colorado contractor fraud page, read 22 October 2026.

Who sees your contact details when you post a job on InstaBids?

One point about InstaBids follows. Contact details stay hidden until the homeowner picks a contractor and they confirm the connection.

Source: InstaBids process and privacy, live-page excerpts, read 22 October 2026.

Post your job on InstaBids, and contractors can bid in writing on one written scope.

Homeowners anywhere in the US can post a job; once you send it, InstaBids finds contractors to bid on it.

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