City of Oak Harbor, Whidbey Island, Washington, Whidbey Island's Premier Waterfront Community

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865 SE Barrington Drive
Oak Harbor, WA 98277
Phone: 360-279-4500
Fax: 360-279-4507

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Mechanical & Plumbing Permits and Information






Please note that the Washington State Building Code Council did not adopt any fuel gas piping, combustion air or venting of equipment under the Uniform Plumbing Code.

All fuel gas piping installations except LPG are covered by the International Fuel Gas Code and the International Mechanical Code.

Gas water heater replacements require a Mechanical Permit.  

Electric water heater replacements require a Plumbing Permit.


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