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Jack's Backflow Testing LLC
Licensed. Backflow Specialty · Licence JACKSBT742JB · issued in Washington.
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About this listing
| Trade | Plumbing and HVAC |
| Location | Granite Falls, WA 98252 |
| Type | Company |
| Phone | (425) 328-**** (on record; published once the listing is claimed) |
The public record
| Credential | Licensed · Backflow Specialty |
| Number | JACKSBT742JB |
| Issued in | Washington |
| Issuing authority | Washington State Department of Labor and Industries |
| Expiry on record | Apr 20, 2028 |
| Last confirmed | Aug 16, 2026 (on record since Jul 25, 2026) |
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