Everett Plumbing Permits

If you're planning plumbing work on your home in Everett, Washington, understanding the permit process is essential. Permits exist to protect homeowners — they ensure that work meets current safety codes, is performed by qualified contractors, and is verified by a licensed inspector. Skipping the permit process can create costly problems down the road, particularly when selling your home or filing an insurance claim.

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City of Everett Development Services

Within Everett city limits, plumbing permits are issued by the City of Everett Development Services department. They administer the permit process under the authority of the Washington State Plumbing Code (WAC 51-56) and applicable local amendments adopted by the City of Everett.

How to Apply for a Plumbing Permit in Everett

The permit application process in Everett typically works as follows:

1. Determine permit need: Confirm whether your specific project requires a permit (see table below).
2. Select a licensed contractor: Most permitted plumbing work must be performed by a Washington State licensed plumbing contractor. Homeowners performing their own work on their owner-occupied single-family residence may qualify for an owner-builder permit in limited circumstances — verify with Development Services.
3. Submit application: Your plumber or contractor typically submits the permit application to Everett Development Services. Applications can be submitted online through the City's permitting portal or in person at City Hall.
4. Pay fees: Permit fees are based on the scope of work and are collected at time of application or issuance.
5. Schedule inspections: Once the permit is issued and work begins (or at specific stages), inspections are scheduled through Development Services.
6. Final approval: After passing final inspection, the permit is closed and the work is officially on record.

City of Everett Development Services Contact

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What Plumbing Work Requires a Permit in Everett?

The following table summarizes common plumbing projects and whether they require a permit in Everett. When in doubt, call the Development Services department to confirm.

Type of Work	Permit Required?	Notes
Water heater replacement (tank or tankless)	✅ Yes	Required even for like-for-like replacement. Must meet current energy code.
New plumbing fixture rough-in	✅ Yes	Adding any new supply or drain line requires permit and inspection.
Sewer lateral repair or replacement	✅ Yes	Requires permit from Everett Public Works. May require inspection at connection point.
Whole-home repiping	✅ Yes	Requires permit. Licensed plumbing contractor must be on record.
Gas line work	✅ Yes	Requires separate mechanical/gas permit in addition to any plumbing permit.
Faucet or fixture replacement (no new lines)	Generally No	Replacing like-for-like without moving pipes typically doesn't require a permit.
Toilet replacement (existing flange)	Generally No	No new connections involved; typically permit-exempt.
Drain cleaning / snaking	No	Maintenance service, not structural work.
Leak repair on existing pipe	Typically No	Minor repairs may be exempt; verify if replacing significant pipe sections.

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Snohomish County Plumbing Regulations

For properties in unincorporated Snohomish County — areas outside Everett and other incorporated cities — permits are issued by Snohomish County Planning and Development Services (PDS) rather than the City of Everett. The permit requirements are similar but administered separately.

Snohomish County adopted the Washington State Plumbing Code with local amendments. Key areas where County requirements may differ include:

• Septic system work for properties not connected to municipal sewer — regulated by Snohomish County Environmental Health
• Well and water system permits for properties on private wells
• Agricultural property exemptions for certain types of outbuildings

Snohomish County PDS Contact

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Plumbing Inspections in Everett

After a permit is issued, the City of Everett requires inspections at specified stages of the project to verify code compliance. For a typical plumbing project, inspections may include:

Common Inspection Stages

Scheduling Inspections

Inspections in Everett are typically scheduled 24–48 hours in advance through the City of Everett's online portal or by calling Development Services. Your licensed plumber will usually coordinate inspection scheduling as part of their service.

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Washington State Plumbing Code

All plumbing work in Everett and Snohomish County must comply with the Washington State Plumbing Code (WAC 51-56), which is based on the Uniform Plumbing Code with Washington-specific amendments. Key code requirements relevant to Everett homeowners include:

• Water heaters: Must have properly installed T&P relief valves with discharge pipes terminating within 6 inches of the floor or to an appropriate drain. Gas water heaters require proper venting per manufacturer specs.
• Seismic strapping: Water heaters must be seismically strapped in Washington State — a requirement given the Pacific Northwest's earthquake risk.
• Backflow prevention: Required on certain fixtures and connections to protect the municipal water supply.
• Drain slope: Horizontal drain lines must be sloped at a minimum of 1/4 inch per foot toward the sewer for proper drainage.
• Pipe materials: Approved materials for residential plumbing include copper, PEX, CPVC, and ABS/PVC for drain lines. Lead and galvanized steel are not approved for new installations.

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Consequences of Unpermitted Plumbing Work

Skipping the permit process may seem like a shortcut, but it creates real risks for Everett homeowners:

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Frequently Asked Questions