STATE LICENSE
ConditionalSee what applies
No DSPS or DATCP credential licenses residential pool cleaning or maintenance. The regulated edges are electrical and public-pool work: wiring pumps, heaters, and lighting above 100 volts is licensed electrical work under Wis. Stat. § 101.862, and new public pools need DSPS plan approval (SPS 390) before DATCP licenses them.
Public pools — any pool serving three or more residences, or regularly used by non-residents — must be licensed by DATCP. A certified operator (CPO, AFO, or Certified Watershape Operator) is required for water attractions and, since September 24, 2023, for any public pool with two reinspections in three years.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Pool service itself has no state or local trade license identified. Public pools are licensed centrally by DATCP after DSPS plan approval; electrical permits for equipment wiring are local.
The local offices section below names the exact permit desk for every Wisconsin county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
Swapping a pump on a line-voltage circuit is electrical work requiring licensed electricians under a licensed Electrical Contractor.
A pool serving three or more residences, or used regularly by non-residents, is public and DATCP-licensed.
Required for water attractions and, since Sept. 24, 2023, for public pools with two reinspections in three years.
A practical sequence for a new pool service contractor in Wisconsin. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Violations of subchapter I of ch. 101 without a specific penalty.
Prime contractors who skip the lien notice.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: Absence of a state pool-service license is inferred from DSPS and DATCP listings, not from an explicit statement · Whether algaecides applied by pool service companies trigger DATCP commercial pesticide licensing · Public pool license fee amounts (DATCP sets them by complexity; schedule not retrieved)
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.