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Plumbing Permit in Frederick, Colorado

Required for installation, alteration, or repair of plumbing systems in Frederick. Governed by the 2024 IPC as locally adopted. Issued by the Town of Frederick Building Department (not deferred to the state board for issuance), but the listed plumber's Colorado DORA license is contemporaneously verified per the Town's Plumber License Contemporaneous Review Guidelines (citing CRS 12-155-120(1) and HB19-1086).

Verified 2026-07-06 · Source

When you need this permit

  • Governed by the 2024 IPC as locally adopted by the Town of Frederick
  • Plumber and license number must be listed on the permit application at time of submittal; permit will not be processed until listed
  • Town of Frederick (or CAA on its behalf) verifies the listed plumber's active Colorado DORA contractor and plumbing license via the state's online License Lookup before the permit is processed
  • If the plumber changes during construction, the new plumber's name/license must be provided and re-verified; work can be stopped if not verified
  • At inspection, the inspector may at their discretion verify the identity of the plumber who performed the work and fail the inspection if unable to confirm
  • Contractor must also hold a Town of Frederick contractor license (Class P) in addition to the Colorado state Master Plumber/Plumbing Contractor license Contractor

Required documents

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Fee schedule

Residential 'Like for Like' Water HeaterTown of Frederick Fee Schedule, effective January 1, 2026
$200.00
Building Permit Fee (valuation-based, for plumbing work billed under the general Building Permit schedule where not a listed flat fee)
$35.00 minimum, scaling per the valuation tiers in the 2026 Fee Schedule
Plan Review Fee
65% of Permit Fee
Re-inspection Fee
$100.00-$120.00 per re-inspection

Review timeline

Plan review
Not published — contact the department

How long did your Plumbing Permit permit actually take in Frederick?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Rough Plumbing

    Pipe, drain, waste, and vent installation before concealment; plumber identity may be verified at inspector's discretion

  2. 2

    Final Inspection

    Fixtures connected, no leaks, proper venting verified

See the full Frederick inspection guide — scheduling & re-inspection fees →

Tips

  • Like the electrical program, Frederick issues its own plumbing permits locally but contemporaneously verifies the plumber's Colorado DORA state license at application (CRS 12-155-120(1) and HB19-1086) — keep license documentation current if you swap plumbing subcontractors mid-project.
  • A 'like-for-like' residential water heater replacement has its own flat $200 fee, separate from the general valuation-based Building Permit Fee schedule — confirm your job qualifies as 'like-for-like' before assuming this flat rate applies.

Frequently asked questions

Frederick requires a plumbing permit for: Governed by the 2024 IPC as locally adopted by the Town of Frederick; Plumber and license number must be listed on the permit application at time of submittal; permit will not be processed until listed; Town of Frederick (or CAA on its behalf) verifies the listed plumber's active Colorado DORA contractor and plumbing license via the state's online License Lookup before the permit is processed; If the plumber changes during construction, the new plumber's name/license must be provided and re-verified; work can be stopped if not verified; At inspection, the inspector may at their discretion verify the identity of the plumber who performed the work and fail the inspection if unable to confirm; Contractor must also hold a Town of Frederick contractor license (Class P) in addition to the Colorado state Master Plumber/Plumbing Contractor license. If your project isn't listed, confirm with Town of Frederick Building Department at 720-382-5516 (general questions); 720-382-5620 (inspection request line) before starting work.

Yes. A Residential 'Like for Like' Water Heater replacement carries a flat $200.00 fee per the Town's 2026 Fee Schedule, distinct from the general valuation-based Building Permit Fee table.

Frederick does not publish a plan-review timeline for this permit. Contact Town of Frederick Building Department at 720-382-5516 (general questions); 720-382-5620 (inspection request line) for current turnaround.

You'll need: Permit Application — General (Plumbing scope); Town of Frederick Contractor License (Class P). See the required-documents checklist on this page for details on each.

Frederick requires 2 inspection(s) for a plumbing permit, in order: Rough Plumbing, Final Inspection. Schedule each through Town of Frederick Building Department (720-382-5516 (general questions); 720-382-5620 (inspection request line)).

Apply through Town of Frederick Building Department at 401 Locust Street, Frederick, CO 80530 (mailing: PO Box 435, Frederick, CO 80530). Phone: 720-382-5516 (general questions); 720-382-5620 (inspection request line), email: building@frederickco.gov. Office hours: Monday-Friday, 7:30 a.m. - 4:30 p.m. Chief Building Official: mtheile@FrederickCO.gov.. Official information: https://www.frederickco.gov/416/Building-Department.

Frederick, Colorado has adopted: 2024 International Building Code (IBC) — Town of Frederick Building Codes page; 2024 International Residential Code (IRC); 2024 International Fire Code (IFC); 2024 International Mechanical Code (IMC); 2024 International Fuel Gas Code (IFGC); 2024 International Plumbing Code (IPC); 2024 International Existing Building Code (IEBC); 2024 International Energy Conservation Code (IECC); 2024 International Swimming Pool and Spa Code (ISPSC); 2024 International Property Maintenance Code (IPMC); 2023 National Electrical Code (NEC); 2025 Colorado Wildfire Resiliency Code (as published by the State of Colorado Division of Fire Prevention and Control); Colorado Model Electric Ready and Solar Ready Code; All codes adopted with local amendments per Frederick Municipal Code, Chapter 18 (Buildings and Building Regulations) — Town of Frederick Building Codes page (frederickco.gov/141/Building-Codes); Note on code-cycle currency: the Town's own Residential/New Construction Building Permit Checklist (a submittal-requirements document, not the code-adoption page) still directs energy-code compliance via '2021 IECC Energy Code' (REScheck, energy rating report, or prescriptive HERS documentation), even though the live Building Codes page lists 2024 IECC as currently adopted — this is the same pattern seen in other Colorado jurisdictions in this corpus where a static submittal PDF lags the actively-maintained code-adoption webpage. The 2024 IBC/IRC/IECC/IMC/IPC/IFGC/IEBC/ISPSC/IPMC + 2023 NEC list from the Building Codes page is treated as the current, governing adopted-code list for this file; confirm current code edition directly with the Building Department (720-382-5516) before finalizing a code analysis for any specific project, since the checklist PDF may not yet be updated to match the webpage.. Local amendments apply — see the Frederick overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-06.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Frederick building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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