Washington contractor license
CORNERSTONE CONST/SEATTLE INC
- CC-01 General
CORNERSTONE CONST/SEATTLE INC is a CC-01 General contractor in Issaquah, licensed in Washington for 21 years (since 2004). As of Oct 28, 2026, the license is active with an expiration date of Jan 11, 2027 on record and a license bond is on file.
CORNERSTONE CONST/SEATTLE INCCC-01 General · checked Oct 28, 2026
ActiveLicense number#CORNECI962RO
Licensed sinceDec 20, 2004
Years licensed21 years
Expiration on recordJan 11, 2027
City and countyIssaquah
License bondOn file
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Source: Washington State Department of Labor & Industries (L&I) contractor records. Last updated Oct 28, 2026. Page refreshed Nov 4, 2026.