Contractor in Mill Creek, WA.
William Olson & Co Llc appears in Washington license records as a contractor based in Mill Creek, WA. The record lists a WA L&I Construction Contractor license (#WILLIOC832C3) with status “Active”. It is listed as valid through 2027-02-23.
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/william-olson-co-llc.
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Create a free account Or subscribe to message in-appCheck license #WILLIOC832C3 on the Washington L&I lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-05-04).
William Olson & Co Llc is a contractor based in Mill Creek, Washington. Their license classification is Cabinets, Millwork and Finish Carpentry.
Yes. William Olson & Co Llc holds Washington L&I license #WILLIOC832C3 (status: Active). Verify the current status on Washington L&I before hiring.
William Olson & Co Llc is based in Mill Creek, WA 98012.
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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.
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