License, bond, and insurance
What Trusted Contractor checked for Black Diamond Sealcoating, and when.
Washington State Department of Labor & Industries
BLACK DIAMOND SEALCOATING
WA license BLACKDS838N5
- License
- active, expires Jun 21, 2028
General - Bond
- on file with Western Surety Co, $30,000, until canceled
- Insurance
- on file with Travelers Cas Insurance Co of , $1,000,000, expires Sep 20, 2027
Last checked Nov 4, 2026, 5:21 AM Pacific against Washington L&I public data (General (m8qx-ubtq), Bond (bzff-4fmt), Insurance (ciwg-agsx)). We read every Washington and Oregon license from state data each day, and again when this page opens more than 12 hours after the last check. The state itself can take a few days to post changes. Check again now
See Black Diamond Sealcoating's reviews
Confirm it yourself: official Washington L&I lookup · the public dataset
Recent checks
- Nov 1, 2026, 6:41 PM PacificNo change
- Oct 21, 2026, 8:02 PM PacificNo change
- Oct 18, 2026, 1:50 AM PacificNo change