STATE LICENSE
ConditionalWashington State Department of Health - W…
There is no pool trade credential in Washington. What exists instead are three separate triggers. Work that alters real property - resurfacing, plumbing changes, equipment pads, pump and heater replacement - is contracting under chapter 18.27 RCW and requires L&I registration with a $15,000 specialty bond, liability insurance and $150.20. Routine cleaning, vacuuming and chemical balancing on an existing pool do not.
Public pools bring the Department of Health in. New construction or modification of a water recreation facility open to the public - swimming pool, spa, wading pool, spray feature, water park or water feature - requires a construction permit, with a fee submittal form, a plan submittal and construction certification form, and the matching plan detail checklist. Review of a complete package may take 30 days or longer. DOH is explicit that the permit is not for single-family residential home pools, which go to the county or city building department instead.
Five counties run the program themselves. Facilities in Clark, King, Pierce, Snohomish or Spokane County get the permit application from their local health department rather than from DOH in Olympia. Regulated facilities include pools at athletic and private clubs, municipal and park facilities, hotels, motels, apartments, condominiums, mobile home parks, RV parks and homeowner association communities.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Pool work splits across more counters than almost any other trade here. For a public facility in Clark, King, Pierce, Snohomish or Spokane County, the construction permit application comes from that county's local health department instead of DOH; everywhere else the package goes to the state Water Recreation Program. For a backyard pool, the county or city building department is the only permitting authority. Any construction permit from a city or county triggers RCW 18.27.110, which requires the jurisdiction to verify L&I registration and print the number on the permit, and RCW 18.106.440 does the same for plumbing permits and the plumbing contractor license. Electrical permits come from L&I except inside the 25 cities with their own electrical programs and Tacoma Power's service area. Under RCW 18.27.130 no city may add a pool contractor license of its own, and incident reports on regulated facilities go to the local health department within 48 hours.
The local offices section below names the exact permit desk for every Washington 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 September 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
DOH states the water recreation facility construction permit is not for single-family residential home pools, and to contact the county or city building department for what a home pool needs.
Facilities in Clark, King, Pierce, Snohomish or Spokane County get the permit application from their local health department rather than from DOH. Everywhere else the three-part package goes to Olympia.
DOH warns that reviewing a complete application package for new construction or modification may take up to 30 days or longer, and asks for a pre-design meeting before detailed plans on water parks and water features.
A practical sequence for a new pool service contractor in Washington. 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.
Advertising, bidding or performing work that alters real property while unregistered is a gross misdemeanor, separately for each day after a citation and each worksite.
Installing or maintaining electrically operated pool equipment without the electrical contractor license violates chapter 19.28 RCW, and equipment installed by an uncertified person may not receive a permit or be energized.
A contractor found to have committed an infraction under RCW 18.106.020 is assessed a minimum $500 for a first infraction, and the administrative law judge may not waive or reduce it.
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 September 2026.
Pending verification: The dollar amounts in the DOH water recreation fee policy were not retrieved; DOH publishes them in a separate fee policy document. · Whether any Washington local health jurisdiction requires a certified pool operator by rule was not confirmed; DOH lists training options without stating a statewide mandate. · The exact chapter 246-260 WAC operating requirements that apply to a service company, as opposed to a facility owner, were not read directly.
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.