Colorado Pool Contractor License Requirements (2026)

Colorado issues no dedicated state-level license for swimming pool and spa construction. There is no statewide pool-contractor credential, no state pool-builder exam, and no state application or renewal to complete. Instead, contractor licensing for pool builders is handled by local city and county building departments, and those requirements vary by jurisdiction. For example, the City and County of Denver lists 'swimming pools' as a specialty contractor license (Specialty Class D) and requires a city-issued Swimming Pools supervisor certificate, while Larimer County licenses pool work under its Specialized Trade Contractor class. At the state level, Colorado's only direct role is design review: under 5 CCR 1003-5 (Swimming Pools and Mineral Baths), the Colorado Department of Public Health & Environment (CDPHE) reviews and approves plans for constructing, remodeling, or modifying a PUBLIC pool or mineral bath, and those plans must be submitted at least 30 days before construction. That plan review is not a contractor license and does not apply to private residential pools. Electrical and plumbing portions of pool work must be performed by state DORA-licensed electricians and plumbers.

The Licensing Authority

Authority over this credential rests with No state pool-contractor licensing agency; contractors are licensed by local city/county building departments. Colorado Department of Public Health & Environment (CDPHE), Division of Environmental Health & Sustainability, reviews public-pool construction plans. (CDPHE), which issues and polices it under 5 CCR 1003-5 (Swimming Pools and Mineral Baths); local municipal/county building codes for contractor licensing. Colorado issues NO state-level license for swimming pool and spa construction. Pool-builder licensing or registration is handled by local jurisdictions: Denver lists 'swimming pools' as a specialty contractor license (Specialty Class D) requiring a city-issued supervisor certificate, and Larimer County licenses pool work under its Specialized Trade Contractor class. At the state level, CDPHE administers 5 CCR 1003-5: plans and specifications for constructing, remodeling, or modifying a PUBLIC pool or mineral bath must be submitted to CDPHE for review and approval at least 30 days before construction. This is design plan review, not a contractor license, and it does not apply to private residential pools. Electrical and plumbing sub-trades are licensed statewide by DORA (Colorado Electrical Board / Plumbing Board).

Official portal: https://cdphe.colorado.gov/dehs/swimming-pools

Baseline Eligibility

The applicant must be at least 0 years of age and possess a valid Social Security Number. No state-level pool-construction license exists, so there is no statewide residency rule. Eligibility, including any age or residency criteria, is set by each local city or county building department that licenses contractors.

Good moral character

Not applicable at the state level; any good-character or related screening is set by the local jurisdiction, if any.

Background investigation

No state-level background-check requirement for pool construction. Any background-check requirement is set by the local municipality and varies by jurisdiction.

Disqualifying conditions

Experience and Education Requirements

The cited source set does not publish a fixed year-based experience threshold for this credential. The controlling requirement is No state experience requirement for pool construction, because Colorado issues no state pool-construction license. Experience thresholds are set locally. For example, Larimer County requires proof of two years of experience OR three completed projects for its contractor licenses, and its Specialized Trade class covers pool work..

Accepted proof of experience or eligibility

Set by the local jurisdiction (e.g., completed-project lists, employer or experience verification) — no statewide form exists

Education substitution

Not defined at the state level; any education substitution varies by municipality.

The Licensing Examination

The cited sources impose no written trade exam at the state level here. The path to the credential runs through: None at the state level. Colorado has no state examination for swimming pool and spa contractors because it issues no such license. Some municipalities require a trade or business-and-law exam, or an ICC (or equivalent) exam, and a local supervisor certificate before issuing a contractor license. Denver requires a city-issued Swimming Pools supervisor certificate (Specialty Class D). At Larimer County, the ICC (or equivalent) exam applies only to the General Contractor Class A/B/C (and Roofing/Mechanical) classes; the Specialized Trade class that covers pool work requires NO ICC exam (experience and insurance only).

Examination fee: none at state level

Retake policy: Set by the local jurisdiction, if any. No state retake rules exist because there is no state exam.

Financial Security and Insurance

No statewide contractor license surety bond is required for this credential in the cited sources. Project-specific, permit, or public-works bonds may still apply, so confirm bonding before bidding a given job.

General liability

No state requirement, because there is no state license. Local licenses typically require general liability insurance. For example, Larimer County requires roughly $1,000,000 for its General Contractor classes and $300,000 for its Specialized Trade, Roofing, and Mechanical classes. Confirm the amount tied to the specific class with the county or city where work occurs.

Workers' compensation

No state-license requirement, but Colorado law requires employers with employees to carry workers' compensation, and local licenses commonly require proof of it (e.g., Larimer County).

Additional financial requirements

Not required at the state level.

Fee Schedule

Fee	Amount
Application (non-refundable)	No separate state fee
Initial license	No separate state fee
Renewal cycle varies by jurisdiction	No separate state fee

License Renewal

There is no uniform statewide renewal interval for the No Colorado state license for swimming pool & spa construction (contractor licensing is handled by local city/county building departments) — the issuing board or local jurisdiction sets the schedule. A standalone statewide renewal fee is not published in the cited record. Because Colorado has no state pool-construction license, there is no state renewal cycle. Local terms vary and are NOT uniformly annual — Denver's contractor license runs a 3-year term and Larimer County renews biennially. Confirm the renewal cycle and fee with the specific jurisdiction.

Continuing education: No state continuing-education requirement for pool contractors, because there is no state license. Local continuing-education requirements, if any, vary by jurisdiction.

Reciprocity Map

Colorado grants no NASCLA reciprocity for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

Not applicable. Colorado issues no state-level swimming pool contractor license, so there is no state reciprocity or NASCLA acceptance for this credential. Reciprocity, if any, exists only between local jurisdictions and typically hinges on equivalent ICC or trade exams.

Weighing more than one jurisdiction? The national hub compares Pool Contractor license requirements in every state — exam, bond, fee, and experience thresholds side by side.

The Licensing Roadmap

Identify the jurisdiction where the work will occur. Because Colorado has no state pool-construction license, contractor licensing is local. Determine the specific city or county building department (e.g., Denver, Larimer County) governing the project site, because rules, classes, and fees differ by jurisdiction.
Determine the correct local license class for pool work. Confirm which local class covers pool construction. In Denver this is the Swimming Pools specialty (Specialty Class D) with a supervisor certificate; in Larimer County it is the Specialized Trade Contractor class, which requires no ICC exam.
Meet the local experience and supervisor requirements. Satisfy the jurisdiction's experience threshold and qualify any required supervisor. Larimer County, for example, requires proof of two years of experience OR three completed projects; some jurisdictions require a supervisor exam while others (such as Larimer's Specialized Trade class) do not.
Obtain the required insurance and any local bond. Carry general liability insurance at the level the local class requires (e.g., roughly $300,000 for Larimer County's Specialized Trade class) and workers' compensation if you have employees. Provide any contractor or license bond the city or county requires.
Apply to the local building department and pay local fees. Submit the local contractor license application with proof of experience, insurance, and any supervisor certificate, and pay the jurisdiction's fees (e.g., Denver $250 for a 3-year license plus a $60 supervisor certificate; Larimer County $75 for Specialized Trade).
Ensure electrical and plumbing sub-trades are state-licensed. The electrical and plumbing portions of pool work must be performed by DORA-licensed electricians and plumbers. Verify sub-trades hold current state licenses through the Colorado Electrical Board or Plumbing Board via DORA.
For public pools, submit plans to CDPHE at least 30 days before construction. If the project is a PUBLIC pool or mineral bath, submit plans and specifications to CDPHE for review and approval under 5 CCR 1003-5 at least 30 days before construction begins. This design review is separate from and additional to local contractor licensing.

Before Filing: A Checklist

Ahead of submission to CDPHE, confirm every item on this short list:

☐ Identify the specific Colorado city or county building department that governs the project site, since pool-contractor licensing is local, not statewide.
☐ Confirm the correct local license class for pool work (e.g., Denver Swimming Pools Specialty Class D, or Larimer County Specialized Trade Contractor).
☐ Meet the local experience requirement and qualify any required supervisor (e.g., Larimer County: two years' experience or three completed projects).
☐ Obtain general liability insurance at the level the local class requires, plus workers' compensation if you have employees, and any local bond.
☐ Submit the local contractor license application and pay jurisdiction fees (e.g., Denver $250 + $60 supervisor certificate; Larimer County $75).
☐ Verify that electrical and plumbing sub-trades are performed by DORA-licensed electricians and plumbers.
☐ For public pools, submit plans to CDPHE for review and approval at least 30 days before construction under 5 CCR 1003-5.

Common Application Pitfalls

These are the recurring mistakes that most often delay or reject a Colorado Pool Contractor application, based on the official instructions cited here.

Assuming Colorado has a state pool-contractor license

There is no statewide pool-construction license. Searching for a state credential wastes time; the controlling requirements are set by the local city or county building department where the work occurs.

Assuming pool work always requires an ICC exam

Not all local pool classes require an exam. Larimer County's ICC (or equivalent) exam applies only to its General Contractor Class A/B/C and Roofing/Mechanical classes; the Specialized Trade class covering pool work requires no ICC exam — only experience and insurance.

Expecting a uniform annual renewal cycle

Local renewal terms are not uniformly annual. Denver's contractor license runs a 3-year term (and adds a $60 supervisor certificate), while Larimer County renews biennially. Confirm the term and fees with each jurisdiction rather than assuming.

Overlooking state sub-trade licensing and public-pool plan review

Even without a state pool license, electrical and plumbing work must use DORA-licensed tradespeople, and public pools require CDPHE plan submittal at least 30 days before construction under 5 CCR 1003-5. Missing either can halt a project.

Preparation Resources

The following references are cited by the regulator, used in the application process, or commonly used to prepare for the trade scope. Listed for reader convenience; CLR receives no compensation for these recommendations.

Other Colorado Trade Licenses

For a different Colorado credential, see these companion guides published by CLR:

Answers to Common Questions

Does Colorado have a state swimming pool contractor license?

No. Colorado issues no state-level license for swimming pool and spa construction. Contractor licensing for pool builders is handled by local city and county building departments, so the applicable requirements depend on the jurisdiction where the work is performed. The state's only direct role is CDPHE plan review of public pools.

Who regulates pool building in Colorado if there is no state license?

Local building departments regulate pool-contractor licensing. For example, Denver lists 'swimming pools' as a specialty contractor license (Specialty Class D) requiring a supervisor certificate, and Larimer County licenses pool work under its Specialized Trade Contractor class. At the state level, CDPHE reviews and approves construction plans for public pools under 5 CCR 1003-5.

Is there a state exam for pool contractors in Colorado?

No. There is no Colorado state examination for swimming pool and spa contractors because the state issues no such license. Some municipalities require a trade, business-and-law, or ICC (or equivalent) exam. Note that Larimer County's Specialized Trade class, which covers pool work, requires no ICC exam — only experience and insurance.

When do public pool plans have to be submitted to the state?

Under 5 CCR 1003-5, plans and specifications for constructing, remodeling, or modifying a PUBLIC pool or mineral bath must be submitted to CDPHE for review and approval at least 30 days before construction begins. This design review is separate from local contractor licensing and does not apply to private residential pools.

Do the electrical and plumbing parts of a pool require a separate license?

Yes. Although there is no state pool-contractor license, the electrical and plumbing portions of pool work must be performed by state DORA-licensed electricians and plumbers, licensed through the Colorado Electrical Board and Plumbing Board. A pool builder must ensure these sub-trades hold current state licenses.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-07-10 · Next scheduled review 2026-10-08