Updated: Mar 27, 2026
Location
Address
11118 18TH PL SE, Lake Stevens, WA, 98258
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Stop Backflow Construction
Stop Backflow, 11118-18 Th Pl SE, Lake Stevens, WA (Owned by: Owner) holds a Construction Contractor, Handyman license and 3 other licenses according to the Tukwila license board.
Their BuildZoom score of 94 ranks in the top 24% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Stop Backflow, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Stop Backflow Services
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Stop Backflow Contact Information
Phone Number: (425) 923-7585
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Address: 11118 18TH PL SE, Lake Stevens, WA 98258
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Verified License
BuildZoom confirmed this contractor's license
Stop Backflow License info
License Not Verified
| License # | STOPBB*843BE |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, Handyman |
| Class | Individual |
| Business Type | Individual |
- When BuildZoom last verified this license, it had an expiration date of January, 2026. Check the current license status of Stop Backflow with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | STOPBB*843BE |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Stop Backflow at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | STOPBB843BE |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Handyman |
| Business Type | Individual |
- When BuildZoom last verified this license, it had an expiration date of January, 2018. Check the current license status of Stop Backflow with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | STOPBB 843BE |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Handyman |
| Business Type | Individual |
- When BuildZoom last verified this license, it had an expiration date of January, 2018. Check the current license status of Stop Backflow with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Developers Surety & Indem Co |
| Bond Value | $6,000 |
Stop Backflow Employees
AT
Allenfort, Craig Thomas
Handyman
CA
Craig Allenfort
Owner
O
Owner
Owner