BLACK HILLS MECHANICAL
Plumbing Contractor license BLACKHM790MG issued by the Washington State Department of Labor & Industries. Status shown as of August 17, 2026.
This license is expired. It lapsed on August 9, 2023, 1104 days ago. A contractor whose license has expired is not currently authorized to perform plumbing contractor work in Washington, and work performed under a lapsed license can affect your permits and your insurance claim.
| License holder | BLACK HILLS MECHANICAL |
|---|---|
| Business name | BLACK HILLS MECHANICAL |
| License type | PLUMBING CONTRACTOR |
| License number | BLACKHM790MG |
| Status today | Expired |
| Expiration date | August 9, 2023 |
| City | Olympia |
| County of record | Olympia |
| Phone on file | 3602390455 |
| Classifications | PLUMBING CONTRACTOR |
| Board status | Expired |
| Issuing authority | Washington State Department of Labor & Industries |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the L&I public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at L&I → File a complaint
There are 52 licensed plumbing contractors on record in Olympia County. Compare them all →