Contractor in Leavenworth, WA.
Great Northern Plumbing Serv appears in Washington license records as a contractor based in Leavenworth, WA. The record lists a WA L&I Construction Contractor license (#GREATNP790NW) with status “Active”. It is listed as valid through 2028-02-23.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
This listing was created from public license records. The owner hasn’t claimed it yet — claim it now and we’ll build you a free professional website at bidroom.io/pro/great-northern-plumbing-serv.
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Create a free account Or subscribe to message in-appCheck license #GREATNP790NW on the Washington L&I lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-05-04).
Great Northern Plumbing Serv is a contractor based in Leavenworth, Washington. Their license classification is JOURNEY LEVEL.
Yes. Great Northern Plumbing Serv holds Washington L&I license #GREATNP790NW (status: Active). Verify the current status on Washington L&I before hiring.
Great Northern Plumbing Serv is based in Leavenworth, WA 98826.
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The fastest way is to post your project on Bidroom — Great Northern Plumbing Serv and up to 2 other verified contractors in Leavenworth can bid on it, and every quote includes itemized pricing + a written scope of work.
Not yet. This listing was created from public Washington license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
Contractor vetting checklist · Cost guide · Look up this license at the state board