STOP BACKFLOW
Construction Contractor license STOPBB*843BE issued by the Washington State Department of Labor & Industries. Status shown as of August 18, 2026.
This license is active. It is valid through January 15, 2028, 515 days from today, according to the most recent L&I public file.
| License holder | STOP BACKFLOW |
|---|---|
| Business name | STOP BACKFLOW |
| License type | CONSTRUCTION CONTRACTOR |
| License number | STOPBB*843BE |
| Status today | Active |
| Expiration date | January 15, 2028 |
| City | Lake Stevens |
| County of record | Lake Stevens |
| Phone on file | 4259237585 |
| Classifications | CONSTRUCTION CONTRACTOR |
| 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 1,104 licensed construction contractors on record in Lake Stevens County. Compare them all →